HP Hewlett Packard Switch 5120 48G User Manual

HP 5120 EI & 5120 SI Switch Series  
Installation Guide  
Part number: 5998-1773  
Document version: 6W102-20121111  
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Contents  
i
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ii  
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iii  
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Product overview  
The HP 5120 EI Switch Series includes the models in Table 1, and the HP 5120 SI Switch Series includes  
the models in Table 2.  
Table 1 Models in the HP 5120 EI Switch Series  
Type  
Product code HP description  
Alias  
JE066A  
JE067A  
HP 5120-24G EI Switch  
5120-24G EI  
5120-48G EI  
HP 5120-48G EI Switch  
HP 5120-24G EI Switch with 2 Interface  
Slots  
JE068A  
JG245A  
JE069A  
JG246A  
JG236A  
JG247A  
JG237A  
JG248A  
5120-24G EI (2 slots)  
HP 5120-24G EI TAA Switch with 2  
Interface Slots  
Non-PoE  
5120-24G EI TAA (2 slots)  
5120-48G EI (2 slots)  
HP 5120-48G EI Switch with 2 Interface  
Slots  
HP 5120-48G EI TAA Switch with 2  
Interface Slots  
5120-48G EI TAA (2 slots)  
5120-24G-PoE+ EI (2 slots)  
HP 5120-24G-PoE+ EI Switch with 2  
Interface Slots  
HP 5120-24G-PoE+ EI TAA Switch with 2  
Interface Slots  
5120-24G-PoE+ EI TAA (2  
slot)  
PoE  
HP 5120-48G-PoE+ EI Switch with 2  
Interface Slots  
5120-48G-PoE+ EI (2 slots)  
HP 5120-48G-PoE+ EI TAA Switch with 2  
Interface Slots  
5120-48G-PoE+ EI TAA (2  
slots)  
Table 2 Models in the HP 5120 SI Switch Series  
Product  
Type  
HP description  
Alias  
code  
JE073A  
JE074A  
JE072A  
JG308A  
JG092A  
JG091A  
JG310A  
JG309A  
HP 5120-16G SI Switch  
5120-16G SI  
HP 5120-24G SI Switch  
5120-24G SI  
Non-PoE  
HP 5120-48G SI Switch  
5120-48G SI  
HP 5120-8G SI Switch  
5120-8G SI  
HP 5120-24G-PPoE+ SI Switch  
HP 5120-24G-PoE+ SI Switch  
HP 5120-8G-PPoE+ SI Switch  
HP 5120-8G-PoE+ SI Switch  
5120-24G-PPoE+ SI  
5120-24G-PoE+ SI  
5120-8G-PPoE+ SI  
5120-8G-PoE+ SI  
PoE  
1
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IMPORTANT:  
For regulatory identification purposes, the HP 5120-8G SI, HP 5120-8G-PPoE+ SI, and HP  
5120-8G-PoE+ SI products are assigned Regulatory Model Numbers (RMN). The Regulatory Model  
Numbers for these products are listed below. These regulatory numbers should not be confused with the  
marketing names HP 5120, or product numbers JG308A, JG310A, and JG309A.  
Table 3 Regulatory Model Numbers in the HP 5120 8G SI Switch Series  
Product code  
JG308A  
RMN  
HP description  
BJNGA-AD0006  
BJNGA-AD0007  
BJNGA-AD0008  
HP 5120-8G SI Switch  
HP 5120-8G-PPoE+ SI Switch  
HP 5120-8G-PoE+ SI Switch  
JG310A  
JG309A  
This chapter describes the chassis panel views of the 5120 EI and 5120 SI switches.  
5120-24G EI (2 slots)/5120-24G EI TAA (2 slots)  
panel views  
Figure 1 Front panel  
(1) 10/100/1000Base-T auto-sensing Ethernet port  
(2) 10/100/1000Base-T Ethernet port LED  
(3) 1000Base-X SFP port  
(5) Console port  
(4) 1000Base-X SFP port LED  
(6) Seven-segment LED (Unit)  
(7) Port mode LED (Mode)  
(9) RPS status LED (RPS)  
(8) System status LED (PWR)  
(10) Interface card 1 status LED (MOD1)  
(12) Port LED mode switching button  
(11) Interface card 2 status LED (MOD2)  
Figure 2 Rear panel  
(1) AC-input power receptacle  
(2) RPS receptacle (shipped with a protective cover)  
2
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(3) Grounding screw  
(4) Interface card slot 1 (MOD1)  
(5) Interface card slot 2 (MOD2)  
NOTE:  
The 5120-24G EI (2 slots) and 5120-24G EI TAA (2 slots) switches come with the expansion interface  
card slots covered by filler panels.  
5120-48G EI (2 slots)/5120-48G EI TAA (2 slots)  
panel views  
Figure 3 Front panel  
(1) 10/100/1000Base-T auto-sensing Ethernet port  
(2) 10/100/1000Base-T Ethernet port LED  
(3) Console port  
(4) Seven-segment LED (Unit)  
(5) Port mode LED (Mode)  
(7) RPS status LED (RPS)  
(6) System status LED (PWR)  
(8) Interface card 1 status LED (MOD1)  
(10) Port LED mode switching button  
(12) 1000Base-X SFP port LED  
(9) Interface card 2 status LED (MOD2)  
(11) 1000Base-X SFP port  
Figure 4 Rear panel  
(1) AC-input power receptacle  
(3) Grounding screw  
(2) RPS receptacle (shipped with a protective cover)  
(4) Interface card slot 1 (MOD1)  
(5) Interface card slot 2 (MOD2)  
NOTE:  
The 5120-48G EI (2 slots) and 5120-48G EI TAA (2 slots) switches come with the expansion interface  
card slots covered by filler panels.  
3
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5120-24G EI panel views  
Figure 5 Front panel  
(1) 10/100/1000Base-T auto-sensing Ethernet (2) 10/100/1000Base-T Ethernet port LED  
port  
(3) SFP port  
(4) SFP port LED  
(5) Console port  
(6) Seven-segment LED (Unit)  
(8) System status LED (PWR)  
(10) Port LED mode switching button  
(7) Port mode LED (Mode)  
(9) RPS status LED (RPS)  
Figure 6 Rear panel  
(1) AC-input power receptacle  
(3) Grounding screw  
(2) RPS receptacle  
(4) “DO NOT REMOVE” label  
CAUTION:  
The 5120-24G EI switch does not support interface cards. To ensure good ventilation, do not remove the  
interface card slot filler panels.  
4
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5120-48G EI panel views  
Figure 7 Front panel  
(1) 10/100/1000Base-T auto-sensing Ethernet (2) 10/100/1000Base-T Ethernet port LED  
port  
(3) Console port  
(4) Seven-segment LED (Unit)  
(6) System status LED (PWR)  
(8) Port LED mode switching button  
(10) SFP port LED  
(5) Port mode LED (Mode)  
(7) RPS status LED (RPS)  
(9) SFP port  
Figure 8 Rear panel  
(1) AC-input power receptacle  
(3) Grounding screw  
(2) RPS receptacle (with filler panel)  
(4) “DO NOT REMOVE” label  
CAUTION:  
The 5120-48G EI switch does not support interface cards.  
5
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5120-24G-PoE+ EI (2 slots)/5120-24G-PoE+ EI  
TAA (2 slots) panel views  
Figure 9 Front panel  
(1) 10/100/1000Base-T auto-sensing Ethernet port  
(2) 10/100/1000Base-T Ethernet port LED  
(3) 1000Base-X SFP port  
(5) Console port  
(4) 1000Base-X SFP port LED  
(6) Seven-segment LED (Unit)  
(7) Port mode LED (Mode)  
(9) RPS status LED (RPS)  
(8) System status LED (PWR)  
(10) Interface card 1 status LED (MOD1)  
(12) Port LED mode switching button  
(11) Interface card 2 status LED (MOD2)  
Figure 10 Rear panel  
1
2
3
4
5
(1) RPS receptacle  
(2) AC-input power receptacle  
(4) Interface card slot 1 (MOD1)  
(3) Grounding screw  
(5) Interface card slot 2 (MOD2)  
NOTE:  
The 5120-24G-PoE+ EI (2 slots) and 5120-24G-PoE+ EI TAA (2 slots) switches come with the expansion  
interface card slots covered by filler panels.  
6
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5120-48G-PoE+ EI (2 slots)/5120-48G-PoE+ EI  
TAA (2 slots) panel views  
Figure 11 Front panel  
1
2
3 4  
5
6
7
8
9
12 11 10  
(1) 10/100/1000Base-T auto-sensing Ethernet port  
(2) 10/100/1000Base-T Ethernet port LED  
(3) Console port  
(4) Seven-segment LED (Unit)  
(6) System status LED (PWR)  
(5) Port mode LED (Mode)  
(7) RPS status LED (RPS)  
(8) Interface card 1 status LED (MOD1)  
(10) Port LED mode switching button  
(12) 1000Base-X SFP port LED  
(9) Interface card 2 status LED (MOD2)  
(11) 1000Base-X SFP port  
Figure 12 Rear panel  
(1) RPS receptacle  
(2) AC-input power receptacle  
(4) Interface card slot 1 (MOD1)  
(3) Grounding screw  
(5) Interface card slot 2 (MOD2)  
NOTE:  
The 5120-48G-PoE+ EI (2 slots) and 5120-48G-PoE+ EI TAA (2 slots) switches come with the expansion  
interface card slots covered by filler panels.  
7
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5120-8G SI panel views  
Figure 13 Front panel  
(1) 10/100/1000Base-T auto-sensing Ethernet port  
(3) Console port  
(2) 1000Base-X SFP port  
(4) Port LED  
(5) Power LED (Power)  
Figure 14 Rear panel  
(1) AC-input power receptacle  
(2) Grounding screw  
5120-16G SI panel views  
Figure 15 Front panel  
(1) 10/100/1000Base-T auto-sensing Ethernet port  
(3) Console port  
(2) 1000Base-X SFP port  
(4) Port LED  
(5) Power LED (Power)  
Figure 16 Rear panel  
(1) AC-input power receptacle  
(2) Grounding screw  
8
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5120-24G SI panel views  
Figure 17 Front panel  
(1) 10/100/1000Base-T auto-sensing Ethernet port  
(3) Console port  
(2) 1000Base-X SFP port  
(4) Port LED  
(5) Power LED (Power)  
Figure 18 Rear panel  
(1) AC-input power receptacle  
(2) Grounding screw  
5120-48G SI panel views  
Figure 19 Front panel  
(1) 10/100/1000Base-T auto-sensing Ethernet port  
(2) 10/100/1000Base-T Ethernet port LED  
(3) Console port  
(4) Power LED (Power)  
(5) 1000Base-X SFP port  
(6) 1000Base-X SFP port LED  
Figure 20 Rear panel  
(1) AC-input power receptacle  
(2) Grounding screw  
9
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5120-8G-PPoE+ SI panel views  
Figure 21 Front panel  
(1) 10/100/1000Base-T auto-sensing Ethernet port  
(3) Port LED  
(2) Port LED mode switching button  
(4) Power LED (Power)  
(6) Console port  
(5) Port mode LED  
(7) 1000Base-X SFP port  
Figure 22 Rear panel  
(1) AC-input power receptacle  
(2) Grounding screw  
5120-8G-PoE+ SI panel views  
Figure 23 Front panel  
(1) 10/100/1000Base-T auto-sensing Ethernet port  
(3) Port LED  
(2) Port LED mode switching button  
(4) Power LED (Power)  
(6) Console port  
(5) Port mode LED  
(7) 1000Base-X SFP port  
10  
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Figure 24 Rear panel  
(1) AC-input power receptacle  
(2) Grounding screw  
5120-24G-PPoE+ SI panel views  
Figure 25 Front panel  
(1) 10/100/1000Base-T auto-sensing Ethernet port  
(3) Port LED  
(2) Port LED mode switching button  
(4) Power LED (Power)  
(6) Console port  
(5) Port mode LED  
(7) 1000Base-X SFP port  
Figure 26 Rear panel  
(1) AC-input power receptacle  
(2) Grounding screw  
11  
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5120-24G-PoE+ SI panel views  
Figure 27 Front panel  
(1) 10/100/1000Base-T auto-sensing Ethernet port  
(3) RPS status LED (RPS)  
(2) Port LED mode switching button  
(4) Port LED  
(5) Power LED (Power)  
(6) Port mode LED  
(8) 1000Base-X SFP port  
(7) Console port  
Figure 28 Rear panel  
(1) DC receptacle  
(2) Screw hole of the plug  
(4) Grounding screw  
(3) AC-input power receptacle  
12  
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Preparing for installation  
Safety recommendations  
To avoid any equipment damage or bodily injury caused by improper use, read the following safety  
recommendations before installation. Note that the recommendations do not cover every possible  
hazardous condition.  
Before cleaning the switch, unplug all power cords. Do not clean the switch with wet cloth or liquid.  
Do not place the switch near water or in a damp environment. Prevent water or moisture from  
entering the switch chassis.  
Do not place the switch on an unstable case or desk. The switch might be severely damaged in case  
of a fall.  
Ensure proper ventilation of the equipment room and keep the air inlet and outlet vents of the switch  
free of obstruction.  
Make sure that the operating voltage is in the required range.  
To avoid electrical shocks, do not open the chassis while the switch is operating or when the switch  
is just powered off.  
When replacing FRUs, wear an ESD-preventive wrist strap to avoid damaging the units.  
Examining the installation site  
The 5120 EI and 5120 SI switches must be used indoors. You can mount your switch in a rack or on a  
workbench, but make sure:  
Adequate clearance is reserved at the air inlet and exhaust vents for ventilation.  
The rack or workbench has a good ventilation system.  
The rack is sturdy enough to support the switch and its accessories.  
The rack or workbench is well earthed.  
To ensure normal operation and long service life of your switch, install it in an environment that meets the  
requirements described in the following subsections.  
Temperature/humidity  
Maintain appropriate temperature and humidity in the equipment room.  
Lasting high relative humidity can cause poor insulation, electricity creepage, mechanical property  
change of materials, and metal corrosion.  
Lasting low relative humidity can cause washer contraction and ESD and bring problems including  
loose captive screws and circuit failure.  
High temperature can accelerate the aging of insulation materials and significantly lower the  
reliability and lifespan of the switch.  
For the temperature and humidity requirements, see “Appendix A Technical specifications.”  
13  
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Cleanness  
Dust buildup on the chassis may result in electrostatic adsorption, which causes poor contact of metal  
components and contact points, especially when indoor relative humidity is low. In the worst case,  
electrostatic adsorption can cause communication failure.  
Table 4 Dust concentration limit in the equipment room  
Substance  
Concentration limit (particles/m³)  
Dust  
3 x 104 (no visible dust on the tabletop over three days)  
NOTE:  
Dust diameter 5 μm  
The equipment room must also meet strict limits on salts, acids, and sulfides to eliminate corrosion and  
premature aging of components, as shown in Table 5.  
Table 5 Harmful gas limits in the equipment room  
Gas  
SO2  
H2S  
NH3  
Cl2  
Maximum concentration (mg/m3)  
0.2  
0.006  
0.05  
0.01  
EMI  
All electromagnetic interference (EMI) sources, from outside or inside of the switch and application  
system, adversely affect the switch in a conduction pattern of capacitance coupling, inductance coupling,  
electromagnetic wave radiation, or common impedance (including the grounding system) coupling. To  
prevent EMI, take the following actions:  
If AC power is used, use a single-phase three-wire power receptacle with protection earth (PE) to  
filter interference from the power grid.  
Keep the switch far away from radio transmitting stations, radar stations, and high-frequency  
devices.  
Use electromagnetic shielding, for example, shielded interface cables, when necessary.  
Route interface cables only indoors to prevent signal ports from getting damaged by overvoltage or  
overcurrent caused by lightning strikes.  
Laser safety  
The HP 5120 EI and 5120 SI switches are Class 1 laser devices.  
WARNING!  
Do not stare into any fiber port when the switch has power. The laser light emitted from the optical fiber  
may hurt your eyes.  
14  
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Installation tools  
Flathead screwdriver  
Phillips screwdriver  
Needle-nose pliers  
Wire-stripping pliers  
Diagonal pliers  
ESD-preventive wrist strap  
Blow dryer  
All these installation tools are user supplied.  
15  
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Installing the switch  
CAUTION:  
Keep the tamper-proof seal on a mounting screw on the chassis cover intact, and if you want to open the  
chassis, contact your local HP agent for permission. Otherwise, HP shall not be liable for any consequence  
caused thereby.  
Figure 29 Hardware installation flow  
16  
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Installing a 5120 EI switch in a 19-inch rack  
You can install a 5120 EI switch in a 19-inch standard rack by using different mounting positions. Table  
6 shows the installation methods available for the switches of different depths.  
Table 6 Installation methods  
Use front  
Use front mounting  
brackets and a rack  
shelf  
Use front and  
rear mounting  
brackets  
mounting  
brackets  
only  
Chassis  
Depth  
5120-24G EI (2 slots)  
5120-24G EI TAA (2 slots)  
5120-48G EI (2 slots)  
5120-48G EI TAA (2 slots)  
5120-24G EI  
Yes (see  
Yes (see  
shelf”)  
300 mm  
No  
(11.81 in) only front  
brackets”  
5120-48G EI  
Yes (see  
5120-24G-PoE+ EI (2 slots)  
5120-24G-PoE+ EI TAA (2 slots)  
5120-48G-PoE+ EI (2 slots)  
5120-48G-PoE+ EI TAA (2 slots)  
Yes (see  
brackets”)  
shelf”)  
420 mm  
No  
(16.54 in)  
NOTE:  
For a switch with a 420 mm (16.54 in) of depth, the front mounting brackets are not weight-bearing.  
Mounting brackets  
Figure 30 Front mounting bracket  
1
2
(1) Hole for attaching to a rack (by using an M6 screw)  
(2) Hole for attaching to the switch chassis  
17  
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Figure 31 Rear mounting bracket  
(1) Hole for attaching to a rack (by using an M6 screw)  
NOTE:  
The M6 screws for fixing the brackets to a rack are user supplied.  
Table 7 shows the mounting bracket shipment for different switch models.  
Table 7 Mounting bracket kit shipped with the 5120 EI switches  
Chassis  
Front mounting brackets  
Rear mounting brackets  
5120-24G EI (2 slots)  
5120-24G EI TAA (2 slots)  
5120-48G EI (2 slots)  
5120-48G EI TAA (2 slots)  
5120-24G EI  
One pair  
N/A  
5120-48G EI  
5120-24G-PoE+ EI (2 slots)  
5120-24G-PoE+ EI TAA (2 slots)  
5120-48G-PoE+ EI (2 slots)  
5120-48G-PoE+ EI TAA (2 slots)  
One pair  
One pair  
Rack-mounting by using only front mounting brackets  
This installation method is available only for the 5120-24G EI (2 slots), 5120-24G EI TAA (2 slots),  
5120-48G EI (2 slots), 5120-48G EI TAA (2 slots), 5120-24G EI, and 5120-48G EI switches.  
This task requires two persons.  
To mount a switch in a 19-inch standard rack by using only the front mounting brackets:  
1.  
Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is well  
grounded.  
2.  
Check that the rack is well grounded and can support the weight of the switch chassis and all its  
accessories.  
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3.  
4.  
Unpack the front mounting brackets and the screws for fixing the brackets to the switch chassis.  
Align the round holes in one bracket with the holes in the front mounting position of the switch  
chassis, and use the screws to fix the mounting bracket to the chassis, as shown in Figure 32.  
5.  
Repeat the previous step to attach the other mounting bracket to the chassis.  
Figure 32 Attach the front mounting brackets to the chassis  
1
2
3
(1) Front panel of the switch  
(3) Screw  
(2) Front mounting bracket  
6.  
7.  
Install cage nuts (user-supplied) in the mounting holes in the rack posts.  
One person holds the switch chassis and aligns the oval holes in the brackets with the mounting  
holes in the rack posts, and the other person fixes the mounting brackets with M6 screws  
(user-supplied) to the rack, as shown in Figure 33.  
19  
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Figure 33 Attach the front mounting brackets to the rack  
1
1
2
4
3
(1) Front square-holed post  
(2) Front panel  
(3) Screw for fixing the bracket to the square-holed post  
(4) Front mounting bracket  
Rack-mounting by using front mounting brackets and a rack  
shelf  
This installation method is available for all 5120 EI switches.  
To mount a switch in a 19-inch rack by using the front mounting brackets and a rack shelf:  
1.  
Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is well  
grounded.  
2.  
Check that the rack is well grounded and can support the weight of the switch chassis and all its  
accessories.  
3.  
4.  
5.  
Fix the rack shelf horizontally in a proper position in the rack.  
Unpack the front mounting brackets and the screws for fixing the brackets to the switch chassis.  
Align the round holes in one bracket with the holes in the front mounting position of the switch  
chassis, and use the removed screws to fix the mounting bracket to the chassis, as shown in Figure  
32.  
6.  
7.  
8.  
Repeat the previous step to attach the other mounting bracket to the chassis.  
Install cage nuts (user-supplied) in the mounting holes in the rack posts.  
Place the switch on the rack shelf, push it into the rack until the brackets touch the rack posts, and  
fix the mounting brackets with M6 screws (user-supplied) to the rack, as shown in Figure 33.  
20  
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Rack-mounting by using front and rear mounting brackets  
This installation method is available only for the 5120-24G-PoE+ EI (2 slots), 5120-24G-PoE+ EI TAA (2  
slots), 5120-48G-PoE+ EI (2 slots), and 5120-48G-PoE+ EI TAA (2 slots) switches.  
This task requires two persons. To install the switch in a 19-inch rack by using the front and rear mounting  
brackets:  
1.  
Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is well  
grounded.  
2.  
3.  
Unpack the front mounting brackets and the screws for fixing the brackets to the switch chassis.  
Align the round holes in one front mounting bracket with the holes in the front mounting position of  
the switch chassis, and use the removed screws to fix the mounting bracket to the chassis, as shown  
in Figure 32.  
4.  
5.  
6.  
Repeat the previous step to attach the other front mounting bracket to the chassis.  
Unpack the rear mounting brackets and the load-bearing screws.  
Fix the load-bearing screws in one of the rear mounting positions (see callout 2 in Figure 34) as  
needed.  
Figure 34 Attach the front mounting brackets and load-bearing screws to the chassis  
(1) Load-bearing screw  
(3) Front panel  
(2) Rear mounting positions  
(4) Front mounting bracket  
(5) Screw for fixing the front mounting bracket to the switch  
NOTE:  
The rear mounting brackets must closely contact with the load-bearing screws to support the chassis  
weight.  
7.  
8.  
Install cage nuts (user-supplied) in the mounting holes in the front and rear rack posts.  
Fix the rear mounting brackets to the rear posts with M6 screws (user supplied), as shown in Figure  
35.  
21  
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Figure 35 Attach the rear mounting brackets to a rack  
1
1
2
(1) Rear square-holed post  
(2) Rear mounting bracket  
9.  
One person supports the chassis bottom with one hand, holds the front part of the chassis with the  
other hand, and pushes the chassis into the rack gently.  
Make sure that the load-bearing screws closely contact with the upper edges of the rear mounting  
brackets, as shown in Figure 36.  
22  
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Figure 36 Mount the switch in the rack  
(1) Rear panel  
(2) Rear square-holed post  
(4) Rear mounting bracket  
(3) Load-bearing screw  
10. The other person aligns the oval holes in the front brackets with the mounting holes in the front rack  
posts, and fixes the front mounting brackets with M6 screws (user supplied) to the front rack posts,  
as shown in Figure 37.  
Make sure that front and rear mounting brackets have securely fixed the switch in the rack.  
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Figure 37 Attach the front brackets to the rack  
(1) Load-bearing screw  
(3) Front panel  
(2) Rear mounting bracket  
(4) A screw used to fix the front mounting bracket to the rack  
(6) Front square-holed post  
(5) Front mounting bracket  
Installing a 5120 SI switch in a 19-inch rack  
Figure 38 shows the general procedure for installing a 5120 SI switch in a 19-inch rack.  
Figure 38 Install a 5120 SI switch in a 19-inch rack  
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Mounting brackets and mounting positions  
Table 8 Mounting brackets for the 5120 SI switches  
Chassis  
Bracket view  
Mounting position  
5120-16G SI  
5120-24G SI  
Front mounting (see Figure 40)  
Rear mounting (see Figure 41)  
See callout A in Figure 39.  
Front mounting (see Figure 42)  
Rear mounting (see Figure 43)  
5120-8G SI  
See callout B in Figure 39.  
See callout D in Figure 39.  
5120-8G-PoE+ SI  
5120-8G-PPoE+ SI  
Front mounting (see Figure 44)  
Rear mounting (see Figure 45))  
Front mounting (see Figure 46)  
Mid-mounting (see Figure 47)  
Rear mounting (see Figure 48)  
5120-24G-PoE+ SI  
5120-24G-PPoE+ SI  
See callout C in Figure 39.  
Front mounting (see Figure 46)  
Rear mounting (see Figure 48)  
5120-48G SI  
Figure 39 Mounting brackets  
1
1
2
2
(A)  
(B)  
1
2
1
2
(D)  
(C)  
(1) Holes for attaching to a rack (by using M6 screws)  
(2) Holes for attaching to the switch chassis  
Attaching the mounting brackets to the switch chassis  
To attach the mounting brackets to the switch chassis:  
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1.  
2.  
3.  
4.  
Identify the correct mounting position (see Table 8).  
Align the round holes in one bracket with the holes in the mounting position.  
Use screws to fix the mounting bracket to the chassis.  
Repeat the preceding steps to attach the other mounting bracket to the chassis.  
Figure 40 Front mounting position (5120-16G SI/5120-24G SI)  
(1) Front panel  
Figure 41 Rear mounting position (5120-16G SI/5120-24G SI)  
(1) Front panel  
Figure 42 Front mounting position (5120-8G-SI)  
1
(1) Front panel  
Figure 43 Rear mounting position (5120-8G-SI)  
(1) Front panel  
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Figure 44 Front mounting position (5120-8G-PoE+ SI/5120-8G-PPoE+ SI)  
1
(1) Front panel  
Figure 45 Rear mounting position (5120-8G-PoE+ SI/5120-8G-PPoE+ SI)  
(1) Front panel  
Figure 46 Front mounting position (5120-24G-PoE+ SI/5120-24G-PPoE+ SI/5120-48G SI)  
1
(1) Front panel  
Figure 47 Mid-mounting position (5120-24G-PoE+ SI/5120-24G-PPoE+ SI)  
(1) Front panel  
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Figure 48 Rear mounting position (5120-24G-PoE+ SI/5120-24G-PPoE+ SI/5120-48G SI)  
(1) Front panel  
Rack-mounting the switch  
This task requires two persons. To mount the switch in a rack:  
1.  
Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is well  
grounded.  
2.  
Check that the rack is well grounded and can support the weight of the switch chassis and all its  
accessories.  
3.  
4.  
5.  
Check that the mounting brackets have been securely attached to the switch chassis.  
Install cage nuts (user-supplied) in the mounting holes in the rack posts.  
One person holds the switch chassis and aligns the oval holes in the brackets with the mounting  
holes in the rack posts, and the other person fixes the mounting brackets with M6 screws  
(user-supplied) to the rack, as shown in Figure 49 or Figure 50.  
NOTE:  
If a rack shelf is available, you can put the switch on the rack shelf, slide the switch to an appropriate  
location, and fix the switch to the rack with the mounting brackets.  
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Figure 49 Mount the switch in a rack (5120-16G SI)  
1
(1) Front panel  
(2) Rear panel  
Figure 50 Mount the switch in a rack (5120-24G-PoE+ SI/5120-24G-PPoE+ SI)  
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(1) Front panel  
(2) Rear panel  
Mounting the switch on a workbench  
This installation method is available for all 5120 EI and 5120 SI switches.  
To mount the switch on a workbench:  
1.  
2.  
3.  
4.  
Check that the workbench is sturdy and well grounded.  
Place the switch with bottom up, and clean the round holes in the chassis bottom with dry cloth.  
Attach the rubber feet to the four round holes in the chassis bottom.  
Place the switch with upside up on the workbench.  
IMPORTANT:  
Ensure good ventilation and 10 cm (3.9 in) of clearance around the chassis for heat dissipation.  
Avoid placing heavy objects on the switch.  
Mounting the switch to a wall  
You can mount the 5120-8G SI, 5120-8G-PoE+ SI, and 5120-8G-PPoE+ SI on concrete or wood walls.  
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Table 9 Models supporting wall mounting  
Model  
Hole distance  
5120-8P SI  
5120-8G-PoE+ SI  
98.5 mm (3.88 in)  
174.0 mm (6.85 in)  
5120-8G-PPoE+ SI  
174.0 mm (6.85 in)  
Introduction to wall anchor kit  
NOTE:  
No wall anchor kit is provided with the 5120 SI Switch Series.  
A wall anchor kit comprises an anchor and a screw, as shown in Figure 51. The screw must have an outer  
diameter of no less than 4 mm (0.16 in) for wall mounting.  
Figure 51 Wall anchor kit  
Installation procedure  
To mount the switch to a wall:  
1.  
Drill two holes at the same height and X mm apart at the locations you marked. See Figure 52.  
Figure 52 Hole distance  
Xmm  
NOTE:  
The distance X between holes varies with devices. For specific distances, see Table 9.  
Drill holes according to the sizes of the anchors and screws so that the anchors can go into the holes with  
only the edges remaining outside, and the screws can be tightly fixed on the wall.  
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2.  
3.  
Insert an anchor into each hole until the anchor is flush with the wall surface. See Figure 53.  
Drive a screw into each wall anchor, leaving a gap of at least 1.5 mm (0.06 in) between the base  
of the screw head and the wall anchor so that the switch can hang on the screws securely.  
Figure 53 Install a wall anchor  
4.  
Align the two installation holes at the switch bottom with the two screws and hang the switch. See  
Figure 54 Wall mounting  
(1) Installation hole  
CAUTION:  
When you mount the switch, keep the Ethernet ports of the switch facing downwards and the two sides  
with ventilation holes vertical to the ground.  
Mounting the switch through magnet mounting  
The 5120-8G SI, 5120-8G-PoE+ SI, and 5120-8G-PPoE+ SI support magnet mounting.  
Introduction to magnetic mounting kit  
A magnetic mounting kit comprises one permanent magnet and one M3*6 countersunk head screw, as  
shown in Figure 55. Four magnetic mounting kits are needed for each switch.  
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Figure 55 Magnet mounting kit  
(1) M3*6 countersunk head screw  
(2) Permanent magnet  
Installation procedure  
To complete magnet mounting:  
1.  
Use a Phillips screwdriver to pass the countersunk head screw through the round hole at the center  
of the permanent magnet, fasten it to a blind nut in the dent of the switch bottom, and make sure  
that the permanent magnet and the switch are fastened reliably. See Figure 56.  
NOTE:  
Remove the cushion, if any, from the dent before installation.  
To ensure the firmness of installation, be sure to use four permanent magnets to secure each switch.  
2.  
Attach the magnet-mounted switch to the specified location. Do not get your fingers stuck between.  
Figure 56 Magnet mounting  
3
1
2
(1) M3*6 countersunk head screw  
(3) Blind nut in the dent of the switch bottom  
(2) Permanent magnet  
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CAUTION:  
Apply magnet mounting to only the 5120-8G SI, 5120-8G-PoE+ SI, and 5120-8G-PPoE+ SI. Otherwise,  
a falloff or mis-operation may occur.  
Select the installation location carefully. In the case of poor surface, magnet mounting may not be  
reliable.  
Put the switch at a stable place free from vibrations or shocks. Otherwise, personal injuries or equipment  
damage may occur.  
Avoid installing the switch at a high place because bodily injuries or equipment damage may occur in  
case of a falloff.  
Avoid frequently moving the desk-mounted switch because such movements may damage the surface  
coating.  
To install the device vertically, keep the front panel of the switch facing downwards and the two sides  
with ventilation holes vertical to the ground.  
Make sure that the weight of external cables does not bring about a falloff, which may result in bodily  
injuries or equipment damage.  
Keep magnetic cards away from magnets to avoid erasure of any information.  
Keep computers and monitors that are easily influenced by magnetic fields away from magnets.  
Otherwise, faults may occur to these electronic devices.  
Grounding the switch  
WARNING!  
Correctly connecting the switch grounding cable is crucial to lightning protection and EMI protection.  
NOTE:  
The power and grounding terminals in this section are for illustration only.  
The power input end of the switch has a noise filter, whose central ground is directly connected to the  
chassis to form the chassis ground (commonly known as PGND). You must securely connect this chassis  
ground to the earth so the faradism and leakage electricity can be safely released to the earth to  
minimize EMI susceptibility of the switch.  
You can ground the switch in one of the following ways, depending on the grounding conditions  
available at the installation site:  
Grounding the switch with a grounding strip  
If a grounding strip is available at the installation site, connect the grounding cable to the grounding  
strip.  
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WARNING!  
Connect the grounding cable to the grounding system in the equipment room. Do not connect it to a fire  
main or lightning rod.  
NOTE:  
The 5120 EI series, 5120-24G-PoE+ SI, and 5120-24G-PPoE+ SI switches come with an OT terminal for  
connecting to a grounding strip. For other switch models, you must prepare OT terminals yourself.  
To connect the grounding cable, for example, to a 5120-48G EI (2 slots) switch:  
1.  
Identify the grounding point (with a grounding sign) on the rear panel of the switch chassis, and  
remove the grounding screw from the grounding point.  
2.  
3.  
Attach the grounding screw to the OT terminal of the grounding cable.  
Use a screwdriver to fasten the grounding screw into the grounding screw hole.  
Figure 57 Connect the grounding cable to the grounding hole of the switch chassis  
(1) Grounding sign  
(3) OT terminal  
(2) Grounding hole  
(4) Grounding cable  
(5) Grounding screw  
4.  
5.  
6.  
Remove the hex nut of a grounding post on the grounding strip.  
Cut the grounding cable as appropriate for connecting to the grounding strip.  
Make the connector for connecting to the grounding strip:  
{
If an OT terminal is available, peel 5 mm (0.20 in) of insulation sheath by using a wire stripper,  
and insert the bare metal part through the black insulation covering into the end of the OT  
terminal, secure the metal part of the cable to the OT terminal with a crimper, cover the joint with  
the insulation covering, and heat the insulation covering with a blow dryer to completely cover  
the metal part (see callout A in Figure 58).  
{
If no OT terminal is available, peel the insulation sheath as appropriate by using a wire stripper,  
and bend the bare metal part into a ring (see callout B in Figure 58). Attach the OT terminal or  
the ring to the grounding strip through the grounding post, and fasten it with the removed hex nut,  
see Figure 59.  
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Figure 58 Make a grounding cable connector  
Figure 59 Connect the grounding cable to a grounding strip  
(1) Grounding post  
(3) Grounding cable  
(2) Grounding strip  
(4) Hex nut  
Grounding the switch with a grounding conductor buried in the  
earth ground  
If the installation site has no grounding strips, but earth ground is available, hammer a 0.5 m (1.64 ft) or  
longer angle iron or steel tube into the earth ground to serve as a grounding conductor.  
The dimensions of the angle iron must be at least 50 × 50 × 5 mm (1.97 × 1.97 × 0.20 in). The steel tube  
must be zinc-coated and its wall thickness must be at least 3.5 mm (0.14 in).  
Weld the yellow-green grounding cable to the angel iron or steel tube and treat the joint for corrosion  
protection.  
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Figure 60 Ground the switch by burying the grounding conductor into the earth ground  
1
2
3
6
4
5
(1) Grounding screw  
(4) Joint  
(2) Grounding cable  
(3) Earth  
(5) Grounding conductor  
(6) Chassis rear panel  
Grounding the switch by using the AC power cord  
If the installation site has no grounding strips or earth ground, you ground an AC-powered switch through  
the PE wire of the power cord, but must make sure:  
The power cord has a PE terminal.  
The ground contact in the power outlet is securely connected to the ground in the power distribution  
room or on the AC transformer side.  
The power cord is securely connected to the power outlet.  
NOTE:  
If the ground contact in the power outlet is not connected to the ground, report the problem and reconstruct  
the grounding system.  
Figure 61 Ground through the PE wire of the AC power cord  
(1) Three-wire AC power cord  
(2) Chassis rear panel  
NOTE:  
To guarantee the grounding effect, use the grounding cable provided with the switch to connect to the  
grounding strip in the equipment room as long as possible.  
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Connecting the power cord  
WARNING!  
Make sure that the grounding cable has been properly connected before powering on the switch.  
Use Table 10 to identify the power cord connection procedures available for your switch.  
Table 10 Power cord connection methods at a glance  
Chassis  
Connection procedure  
5120-8G SI  
5120-16G SI  
5120-24G SI  
5120-48G SI  
5120-8G-PPoE+ SI  
5120-8G-PoE+ SI  
5120-24G-PPoE+ SI  
AC-input:  
RPS input:  
5120-24G-PoE+ SI  
5120-24G EI (2 slots)  
5120-24G EI TAA (2 slots)  
5120-48G EI (2 slots)  
5120-48G EI TAA (2 slots)  
5120-24G EI  
AC-input:  
RPS input:  
5120-48G EI  
5120-24G-PoE+ EI (2 slots)  
5120-24G-PoE+ EI TAA (2 slots)  
5120-48G-PoE+ EI (2 slots)  
5120-48G-PoE+ EI TAA (2 slots)  
AC-input:  
RPS input:  
Connecting the AC power cord  
To connect the AC power cord:  
1.  
Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is well  
grounded.  
2.  
Connect one end of the AC power cord to the AC-input power receptacle on the switch.  
Figure 62 uses a 5120-48G EI switch for illustration, and Figure 63 uses a 5120-24G SI switch for  
illustration.  
3.  
Connect the other end of the AC power cord to the AC power outlet.  
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Figure 62 Connect the AC power cord to the 5120-48G EI switch  
Figure 63 Connect the AC power cord to the 5120-24G SI switch  
Connecting the switch to a +12 VDC output RPS  
This section applies to the 5120-24G EI (2 slots), 5120-24G EI TAA (2 slots), 5120-48G EI (2 slots),  
5120-48G EI TAA (2 slots), 5120-24G EI, and 5120-48G EI switches.  
To connect these switches to the RPS that provides +12 VDC output:  
1.  
Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is well  
grounded.  
2.  
Loosen the captive screws on the RPS receptacle protective cover and remove the protective cover,  
see Figure 64.  
If you do not use the RPS receptacle, install the protective cover.  
Figure 64 Remove the RPS receptacle protective cover  
3.  
4.  
Unpack the RPS cable shipped with the RPS, identify the plug for connecting to the switch, correctly  
orient the plug with the RPS receptacle on the switch chassis, and insert the plug into the receptacle  
(see callout 1 in Figure 65).  
The RPS receptacle is foolproof. If you cannot insert the plug into the receptacle, re-orient the plug  
rather than use excessive force to push it in.  
Tighten the screws on the plug with a flat-blade screwdriver to secure the plug in the RPS receptacle  
(see callout 2 in Figure 65).  
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5.  
Connect the other end of the power cord to the RPS.  
Figure 65 Connect the RPS cable to the +12 VDC RPS receptacle  
Connecting the switch to a –52 to –55 VDC output RPS  
This section applies to the 5120-24G-PoE+ EI (2 slots), 5120-24G-PoE+ EI TAA (2 slots), 5120-48G-PoE+  
EI (2 slots), 5120-48G-PoE+ EI TAA (2 slots) and 5120-24G-PoE+ SI switches.  
To connect these switches to the RPS that provides –52 to –55 VDC output:  
1.  
Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is well  
grounded.  
2.  
Unpack the RPS cable shipped with the RPS, identify the plug for connecting to the switch, correctly  
orient the plug with the RPS receptacle on the switch chassis, and insert the plug into the receptacle  
(see callout 1 in Figure 66).  
The RPS receptacle is foolproof. If you cannot insert the plug into the receptacle, re-orient the plug  
rather than use excessive force to push it in.  
3.  
Tighten the screws on the plug with a flat-blade screwdriver to secure the plug in the RPS receptacle  
(see callout 2 in Figure 66).  
4.  
5.  
Connect the other end of the power cord to the RPS.  
Make sure that the RPS is supplying power and verify that the RPS status LED is ON.  
Figure 66 Connect the RPS cable to the –52 to –55 RPS receptacle  
1
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Installing/removing an interface card (only for the  
5120 EI switches)  
This section applies to all 5120 EI switches but the 5120-24G EI and 5120-48G EI. For the interface cards  
available for the switches, see “Interface cards (only for the 5120 EI switches).”  
This section uses the LSPM2SP2P interface card as an example to describe the procedures of installing  
and removing an interface card.  
IMPORTANT:  
To set up a 5120 EI IRF fabric, you must install interface cards. To choose a correct slot for an interface  
Installing an interface card  
To install an interface card in an interface card slot at the rear of the chassis:  
1.  
Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is well  
grounded.  
2.  
Loosen the mounting screws on the filler panel over the interface card slot with a Phillips  
screwdriver and remove the filler panel.  
Figure 67 Remove the filler panel over an interface card slot  
3.  
4.  
Hold the captive screws on the front panel of the interface card, and gently push the interface card  
in along the slot guide rail until the interface card is in close contact with the switch chassis (see  
callout 1 in Figure 68).  
Tighten the captive screws with a Phillips screwdriver to fix the interface card in the slot (see callout  
2 in Figure 68).  
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Figure 68 Install an interface card (II)  
2
2
1
NOTE:  
Put away the removed filler panel for future use.  
When you tighten the captive screws, the torque must not be higher than 0.4 N-m.  
Removing an interface card  
To remove an interface card:  
1.  
2.  
3.  
Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is well  
grounded.  
Use a Phillips screwdriver to completely loosen the captive screws at both sides of the interface  
card.  
Pull the interface card along the guide rails until it completely comes out of the switch chassis.  
CAUTION:  
Do not touch the surface-mounted components directly with your hands.  
Do not use too much force during the operation.  
If no new card is to be installed, install the filler panel to prevent dust and ensure good ventilation in the  
switch.  
Installing/removing a dedicated CX4/SFP+ cable  
The dedicated CX4 and SFP+ cables for the 5120 EI switches are hot swappable.  
Installing a dedicated CX4/SFP+ cable  
CAUTION:  
The cable bending radius must be at least eight times the cable diameter.  
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To connect a CX4 or SFP+ cable to a port on a CX4/SFP+ interface card:  
1.  
2.  
Wear an ESD-preventive wrist strap and make sure it makes good skin contact is well grounded.  
Correctly orient one connector of the cable with the port and insert the cable connector into the  
port.  
Removing a dedicated CX4/SFP+ cable  
To remove a CX4 or SFP+ cable from a port on a CX4/SFP+ interface card:  
1.  
Wear an ESD-preventive wrist strap and make sure it makes good skin contact and is well  
grounded.  
2.  
Hold the cable connector and pull the pull latch of the connector to remove the cable from the  
switch.  
Verifying the installation  
After you complete the installation, verify that:  
There is enough space for heat dissipation around the switch, and the rack or workbench is stable.  
The grounding cable is securely connected.  
The correct power source is used.  
The power cords are properly connected.  
All the interface cables are cabled indoors. If any cable is routed outdoors, verify that the socket  
strip with lightning protection and lightning arresters for network ports have been properly  
connected.  
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Accessing the switch for the first time  
Setting up the configuration environment  
The first time you access the switch you must use a console cable to connect a console terminal, for  
example, a PC, to the console port on the switch.  
Figure 69 Connect the console port to a terminal  
Connecting the console cable  
Console cable  
A console cable is an 8-core shielded cable, with a crimped RJ-45 connector at one end for connecting  
to the console port of the switch, and a DB-9 female connector at the other end for connecting to the  
serial port on the console terminal.  
Figure 70 Console cable  
Connection procedure  
To connect a terminal, for example, a PC, to the switch:  
1.  
Plug the DB-9 female connector of the console cable to the serial port of the PC.  
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2.  
Connect the RJ-45 connector to the console port of the switch.  
NOTE:  
Identify the mark on the console port and make sure that you are connecting to the correct port.  
The serial ports on PCs do not support hot swapping. If the switch has been powered on, connect the  
console cable to the PC before connecting to the switch, and when you disconnect the cable, first  
disconnect from the switch.  
Setting terminal parameters  
To configure and manage the switch, you must run a terminal emulator program on the console terminal.  
The following are the required terminal settings:  
Bits per second—9,600  
Data bits—8  
Parity—None  
Stop bits—1  
Flow control—None  
Emulation—VT100  
To set terminal parameters, for example, on a Windows XP HyperTerminal:  
1.  
Select Start > All Programs > Accessories > Communications > HyperTerminal.  
The Connection Description dialog box appears.  
2.  
Enter the name of the new connection in the Name field and click OK.  
Figure 71 Connection description  
3.  
Select the serial port to be used from the Connect using list, and click OK.  
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Figure 72 Set the serial port used by the HyperTerminal connection  
4.  
Set Bits per second to 9600, Data bits to 8, Parity to None, Stop bits to 1, and Flow control to None,  
and click OK.  
Figure 73 Set the serial port parameters  
5.  
Select File > Properties in the HyperTerminal window.  
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Figure 74 HyperTerminal window  
6.  
On the Settings tab, set the emulation to VT100 and click OK.  
Figure 75 Set terminal emulation in Switch Properties dialog box  
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Powering on the switch  
Verification before power-on  
Before powering on the switch, verify that:  
The power cord is properly connected.  
The input power voltage meets the requirement of the switch.  
The console cable is properly connected, the terminal or PC used for configuration has started, and  
the configuration parameters have been correctly set.  
Powering on the switch  
Power on the switch, for example, a 5120-24G-PoE+ EI TAA (2 slots) switch, and you can see the  
following information:  
Starting......  
********************************************************************************  
*
*
* HP 5120-24G-PoE+ EI TAA Switch with 2 Interface Slots BOOTROM, Version 205 *  
*
*
********************************************************************************  
Copyright (c) 2010-2011 Hewlett-Packard Development Company, L.P.  
Creation date  
: Feb 23 2011, 09:36:58  
CPU Clock Speed : 264MHz  
BUS Clock Speed : 33MHz  
Memory Size  
Mac Address  
: 128MB  
: 3ce5a62f8dde  
Press Ctrl-B to enter Boot Menu... 1  
Press Ctrl + B at the prompt within one second to access the Boot menu, or wait for the system to  
automatically start up.  
NOTE:  
The system has two startup modes: full startup and fast startup. By default, the system starts up in fast mode  
and the waiting time is one second. In full startup mode, the waiting time is five seconds. To change the  
startup mode, see “Changing the startup mode.”  
If you press Ctrl + B within one second, the system displays a prompt for password:  
Password:  
Press Enter at the prompt the first time you access the switch and you can see the following Boot  
menu:  
BOOT MENU  
1. Download application file to flash  
2. Select application file to boot  
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3. Display all files in flash  
4. Delete file from flash  
5. Modify bootrom password  
6. Enter bootrom upgrade menu  
7. Skip current configuration file  
8. Set bootrom password recovery  
9. Set switch startup mode  
0. Reboot  
Enter your choice(0-9):  
Table 11 Boot menu options  
Item  
Description  
1. Download application file to flash  
2. Select application file to boot  
3. Display all files in flash  
4. Delete file from flash  
Download a system software image file to the Flash memory.  
Select the system software image file to boot.  
Display all files in the Flash memory.  
Delete files from the Flash memory.  
5. Modify bootrom password  
6. Enter bootrom upgrade menu  
Modify the Boot ROM password.  
Access the Boot ROM update menu.  
Start the switch with the factory default configuration. This is a  
one-time operation and does not take effect at the next reboot. You  
use this option when you forget the console login password.  
7. Skip current configuration file  
8. Set bootrom password recovery  
Disable or enable the Boot ROM password recovery function. By  
default, Boot ROM recovery is enabled. You can disable this function  
to protect system security.  
Set the startup mode to full mode or fast mode, as described in  
9. Set switch startup mode  
0. Reboot  
Restart the switch.  
NOTE:  
The system by default has no Boot ROM password. HP recommends that you set a Boot ROM password  
immediately after you access the Boot menu.  
If you perform no operation or press any key other than Ctrl + B within one second, the system  
automatically starts up when the remaining time becomes zero, and displays the following  
information:  
Auto-booting...  
Decompress Image................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
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................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
...........................................OK!  
User interface aux0 is available.  
Press ENTER to get started.  
Press Enter at the prompt, and you can configure the switch when the prompt <HP> appears.  
Changing the startup mode  
The system by default starts up in fast mode. To change to the full startup mode, press Ctrl + B within one  
second to access the Boot menu:  
BOOT MENU  
1. Download application file to flash  
2. Select application file to boot  
3. Display all files in flash  
4. Delete file from flash  
5. Modify bootrom password  
6. Enter bootrom upgrade menu  
7. Skip current configuration file  
8. Set bootrom password recovery  
9. Set switch startup mode  
0. Reboot  
Enter your choice(0-9):  
Enter 9 to change the startup mode.  
The current mode is fast startup mode!  
Are you sure you want to change it to full startup mode? Yes or No(Y/N)  
Enter Y at the prompt.  
Setting startup mode...done!  
BOOT MENU  
1. Download application file to flash  
2. Select application file to boot  
3. Display all files in flash  
4. Delete file from flash  
5. Modify bootrom password  
6. Enter bootrom upgrade menu  
7. Skip current configuration file  
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8. Set bootrom password recovery  
9. Set switch startup mode  
0. Reboot  
Enter your choice(0-9):  
Enter 0 at the prompt. The system reboots in full startup mode and displays the following information:  
Starting......  
********************************************************************************  
*
*
* HP 5120-24G-PoE+ EI TAA Switch with 2 Interface Slots BOOTROM, Version 205 *  
*
*
********************************************************************************  
Copyright (c) 2010-2011 Hewlett-Packard Development Company, L.P.  
Creation date  
: Feb 23 2011, 09:36:58  
CPU Clock Speed : 264MHz  
BUS Clock Speed : 33MHz  
Memory Size  
Mac Address  
: 128MB  
: 3ce5a62f8dde  
Press Ctrl-B to enter Boot Menu... 5  
In full startup mode, you must press Ctrl + B within five seconds to access the Boot menu. If you perform  
no operation or press any key other than Ctrl + B within five seconds, the system automatically starts up  
and displays the following information:  
Auto-booting...  
Decompress Image................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
................................................................................  
..............OK!  
Board checking.......................LSP1LTSUD  
SDRAM fast selftest........................OK!  
Flash fast selftest........................OK!  
CPLD selftest..............................OK!  
Switch chip selftest.......................OK!  
PHY selftest...............................OK!  
Please check leds....................FINISHED!  
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User interface aux0 is available.  
Press ENTER to get started.  
Press Enter at the prompt, and you can configure the switch when the prompt <HP> appears.  
NOTE:  
For more information about the configuration commands and CLI, see the configuration guides and  
command references for your switch.  
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Setting up an IRF fabric  
You can use HP Intelligent Resilient Framework (IRF) technology to connect and virtualize 5120 EI switches  
or 5120 SI switches into a virtual switch called an “IRF fabric” or “IRF virtual device” for flattened network  
topology, and high availability, scalability, and manageability.  
NOTE:  
IRF is not available on the 5120-24G EI or 5120-48G EI switch. The “5120 EI switches” in this document  
does not include those two switch models.  
An IRF fabric cannot have both 5120 EI and 5120 SI switches.  
IRF fabric setup flowchart  
Figure 76 IRF fabric setup flowchart  
Start  
Plan IRF fabric setup  
Install IRF member switches  
Connect grounding cables and  
power cords  
Power on the switches  
Install interface cards  
(only on A5120 EI)  
Configure basic IRF settings  
Connect the physical IRF ports  
Switches elected as slaves  
reboot and the IRF fabric is  
established automaticlly  
End  
To set up an IRF fabric:  
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Step  
Description  
Plan the installation site and IRF fabric setup parameters:  
1. Plan IRF fabric setup  
2. Install  
switches  
IRF  
member  
See “Installing the switch.”  
3. Connect the grounding  
N/A  
cable and power cords  
4. Power on the switches  
This step is required only for the 5120 EI switches.  
5. Install interface cards  
6. Configure  
basic  
IRF  
settings  
7. Connect the physical IRF  
All switches except the master switch automatically reboot, and the IRF fabric  
is established.  
ports  
Planning IRF fabric setup  
Planning IRF fabric size and the installation site  
Choose switch models and identify the number of required IRF member switches, depending on the user  
density and upstream bandwidth requirements. The switching capacity of an IRF fabric equals the total  
switching capacities of all member switches.  
NOTE:  
As your business grows, you can plug a switch into an IRF fabric to increase the switching capacity without  
any topology change or replacement.  
Identifying the master switch and planning IRF member IDs  
Determine which switch you want to use as the master for managing all member switches in the IRF fabric.  
An IRF fabric has only one master switch. You configure and manage all member switches in the IRF  
fabric at the command line interface of the master switch.  
NOTE:  
IRF member switches will automatically elect a master. You can affect the election result by assigning a  
high member priority to the intended master switch. For more information about master election, see the  
IRF configuration guide for your switch.  
Prepare an IRF member ID assignment scheme. An IRF fabric uses member IDs to uniquely identify and  
manage its members, and you must assign each IRF member switch a unique member ID.  
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Planning IRF topology and connections  
You can create an IRF fabric in daisy chain topology, or more reliably, ring topology. In ring topology,  
the failure of one IRF link does not cause the IRF fabric to split as in daisy chain topology. Rather, the IRF  
fabric changes to a daisy chain topology without interrupting network services.  
You connect the IRF member switches through IRF ports. An IRF port is a logical interface for the internal  
connection between IRF member switches. Each IRF member switch has two IRF ports: IRF-port 1 and  
IRF-port 2. To use an IRF port, you must bind physical ports to it.  
When connecting two neighboring IRF member switches, you must connect the physical ports of IRF-port  
1 on one switch to the physical ports of IRF-port 2 on the other switch.  
You can bind several physical ports to an IRF port to create an aggregate IRF link for increased  
bandwidth and availability.  
NOTE:  
Figure 77 and Figure 78 show the topologies of a 5120 EI IRF fabric. Figure 79 and Figure 80 show the  
topologies of a 5120-24G SI IRF fabric.  
The IRF port connections in these figures are for illustration only, and more connection methods are  
available.  
Figure 77 5120 EI IRF fabric in daisy chain topology  
Master  
IRF  
fabric  
Slave  
Slave  
Figure 78 5120 EI IRF fabric in ring topology  
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Figure 79 5120 SI IRF fabric in daisy chain topology  
Figure 80 5120 SI IRF fabric in ring topology  
Identifying physical IRF ports on the member switches  
Identify the physical IRF ports on the member switches according to your topology and connection  
scheme.  
Table 12 shows the physical ports that can be used for IRF connection and the port use restrictions.  
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Table 12 Physical IRF port requirements  
Candidate physical  
IRF ports  
Switch chassis  
Requirements  
You must order interface cards separately. For  
long-distance connections, use XFP or SFP+  
transceiver modules and fibers. For short-distance  
connections, use CX4 or SFP+ cables. For more  
5120 EI switches  
(excluding the 5120-24G  
EI and the 5120-48G EI)  
Ports on the expansion  
interface cards on the  
rear panel  
Ports assigned to the same IRF port must be on the  
same interface card.  
All 5120 EI switches in a ring topology and the  
non-edge switches in a daisy chain topology must  
have at least one two-port interface card or two  
one-port interface cards.  
HP recommends that you use Gigabit SFP ports and  
HP A3600 Switch SFP Stacking Kit cables for IRF  
connection.  
5120 SI switches  
All network ports  
For more information, see “SFP transceiver modules  
Planning the cabling scheme  
Planning the cabling scheme for a 5120 EI IRF fabric  
If 2-port interface cards are used and the IRF links are not aggregate, follow these guidelines on  
connecting two neighboring 5120 EI switches:  
You can connect the interface card in slot 1 (MOD 1) on a member switch to the MOD 1 or MOD  
2 card on its neighboring switch.  
Connect the left port on one interface card to the right port on the other interface card, as shown in  
Figure 81 Use 2-port interface cards to set up single-link IRF connection  
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If 2-port interface cards are used and IRF links are aggregate, follow these guidelines on connecting two  
neighboring switches:  
The ports on the interface card MOD 1 on one switch must connect to the ports on the interface card  
MOD 2 on the other switch.  
A port on one interface card can connect to any port on the other interface card, as shown in Figure  
82. For example, you can connect the left port on one interface card to the left or right port on the  
other interface card.  
Figure 82 Use 2-port interface cards to set up multi-link IRF connection  
If 1-port interface cards are used, follow these guidelines on connecting neighboring switches:  
If both of the switches use 1-port interface cards, the port on MOD 1 on one switch must connect to  
the port on MOD 2 on the other switch (see callout 1 in Figure 83).  
If one switch uses a 1-port interface card but the other switch uses a 2-port interface card:  
{
If the 1-port interface card is in the MOD 1 slot, the port on the card must connect to the right  
port on the 2-port interface card (see callout 2 in Figure 83.)  
{
If the 1-port interface card is in the MOD 2 slot, the port on the card must connect to the left port  
on the 2-port interface card.  
Figure 83 Cable connections for an IRF fabric with 1-port interface cards  
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Planning the cabling scheme for a 5120 SI IRF fabric  
HP recommends that you use Gigabit SFP ports and HP A3600 Switch SFP Stacking Kit cables for IRF  
connection.  
Figure 84 shows two IRF connection schemes and uses Gigabit SFP ports and HP A3600 Switch SFP  
Stacking Kit cables for IRF connection. All these schemes use a ring topology.  
Figure 85 shows the IRF fabric topology.  
Figure 84 Connect the IRF member switches  
Figure 85 IRF fabric topology  
1
2
4
3
Configuring basic IRF settings  
After you install the IRF member switches, power on the switches, and log in to each IRF member switch  
(see the fundamentals configuration guide for your switch) to configure their member IDs, member  
priorities, and IRF port bindings.  
Follow these guidelines when you configure the neighboring switches:  
Assign the master switch higher member priority than any other switch.  
Bind physical ports to IRF port 1 on one switch and to IRF port 2 on the other switch.  
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Execute the irf-port-configuration active command to activate the IRF port configuration.  
Execute the display irf configuration command to verify the basic IRF settings.  
For more information about configuring basic IRF settings, see the IRF configuration guide for your switch.  
Connecting the physical IRF ports  
Connect the IRF member switches as planned.  
NOTE:  
Wear an ESD-preventive wrist strap when you connect the physical IRF ports. For how to connect them,  
see Pluggable SFP/SFP+/XFP Transceiver Modules Installation Guide.  
Accessing the IRF fabric to verify the configuration  
To verify the basic functionality of the IRF fabric after you finish configuring basic IRF settings and  
connecting IRF ports:  
1.  
2.  
Log in to the IRF fabric through the console port of any member switch.  
Create a Layer 3 interface, assign it an IP address, and make sure that the IRF fabric and the  
remote network management station can reach each other.  
3.  
Use Telnet, web or SNMP to access the IRF fabric from the network management station.  
See the fundamentals configuration guide for your switch.  
4.  
5.  
Check that you can manage all member switches as if they were one node.  
Display the running status of the IRF fabric by using the commands in Table 13.  
Table 13 Display and maintain IRF configuration and running status  
To do …  
Use the command…  
display irf  
Display information about the IRF fabric  
Display all members’ configurations that take  
effect after switch reboots  
display irf configuration  
display irf topology  
Display topology information about the IRF  
fabric  
NOTE:  
To avoid IP address collision and network problems, configure at least one multi-active detection (MAD)  
mechanism to detect the presence of multiple identical IRF fabrics and handle collisions. For more  
information about MAD detection, see the IRF configuration guide for your switch.  
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Maintenance and troubleshooting  
Password loss  
Console login password loss  
If you forget the console login password, access the Boot menu:  
BOOT MENU  
1. Download application file to flash  
2. Select application file to boot  
3. Display all files in flash  
4. Delete file from flash  
5. Modify bootrom password  
6. Enter bootrom upgrade menu  
7. Skip current configuration file  
8. Set bootrom password recovery  
9. Set switch startup mode  
0. Reboot  
Enter your choice(0-9):  
Enter 7 and restart the switch. The switch reboots with empty configuration, and you can log in through  
the console port without entering the password to check the configuration file for the user password.  
Boot ROM password loss  
Contact the HP technical support for help.  
Power supply failure  
The 5120 EI switches and the 5120 SI switches use fixed power supplies. All 5120 EI switches and the  
5120-24G-PoE+ SI switch support three power input modes: AC input, RPS DC input, and concurrent AC  
and RPS DC inputs. All other 5120 SI switches have only one AC power input.  
To identify a power failure:  
On any 5120 EI switch, look at the system status LED and the RPS status LED of the switch. For more  
information, see “LEDs (for the 5120 EI switches).”  
On the 5120-24G-PoE+ SI switch, look at the power LED and the RPS status LED of the switch. For  
more information, see “LEDs (for the 5120 SI switches).”  
On any other 5120 SI switch, look at the power LED of the switch. For more information, see “LEDs  
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NOTE:  
In the following subsections, the system status LED collectively refers to both the system status LED on a  
5120 EI switch and the power LED on a 5120 SI switch.  
AC input  
If the system status LED is off, an AC input failure has occurred. Verify the following items:  
The AC power cord is securely connected to the switch, and the AC-input power receptacle on the  
switch and the connected AC power outlet are in good condition.  
The external AC power system is correctly working.  
The operating temperature of the switch is in the normal range, and the power module has good  
ventilation. Over-temperature can cause the power module to stop working and enter the protection  
state.  
RPS DC input  
If the system status LED or RPS status LED is off, an RPS input failure has occurred. Verify the following  
items:  
The switch is securely connected to the RPS.  
The RPS is correctly working.  
The operating temperature of the switch is in the normal range, and the power supply has good  
ventilation. Over-temperature can cause the power supply to stop working and enter the protection  
state).  
Concurrent RPS and AC inputs  
1.  
If the system status LED is off, the AC power supply and the RPS both have an input failure.  
Verify the following items:  
{
The AC power cord is securely connected to the switch, and the AC-input power receptacle on  
the switch and the connected AC power outlet are in good condition.  
{
{
{
{
The external AC power system is correctly working.  
The switch is securely connected to the RPS.  
The RPS is correctly working.  
The operating temperature of the switch is in the normal range, and the power supply has good  
ventilation. Over-temperature can cause the power supply to stop working and enter the  
protection state.  
2.  
3.  
If the system status LED is on but the RPS status LED is steady yellow, an AC input failure has  
occurred.  
Verify the following items:  
{
The AC power cord is securely connected to the switch, and the AC-input power receptacle on  
the switch and the connected AC power outlet are in good condition.  
{
The external AC power system is correctly working.  
If the system status LED is on but the RPS status LED is off, an RPS input failure has occurred.  
Verify the following items:  
{
The switch is securely connected to the RPS.  
The RPS is correctly working.  
{
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NOTE:  
If the problem persists, contact the HP technical support for help.  
Fan failure (only for the 5120 EI switches)  
You can look at the system status LED and the seven-segment LED of a 5120 EI switch to identify a fan  
failure. If both LEDs are behaving as described in Table 14, a fan failure occurs.  
Table 14 LED behaviors that identify a fan failure  
LED  
Mark  
State  
System status LED  
PWR  
Steady red  
The LED flashes F for fan failure.  
Seven-segment LED  
Unit  
The 5120 EI switches use fixed fans. If a fan failure occurs, contact the HP technical support for help and  
do not attempt to fix the problem yourself.  
Configuration terminal problems  
If the configuration environment setup is correct, the configuration terminal displays booting information  
when the switch is powered on. If the setup is incorrect, the configuration terminal would display nothing  
or garbled text.  
No terminal display  
If the configuration terminal displays nothing after the switch is powered on, verify the following items:  
The power supply is supplying power to the switch.  
The console cable is properly connected.  
The console cable has no problem and the terminal settings are correct.  
Garbled terminal display  
If terminal display is garbled, verify that the following settings are configured for the terminal, for  
example, HyperTerminal:  
Baud rate—9,600  
Data bits—8  
Parity—none  
Stop bits—1  
Flow control—none  
Emulation—VT100  
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Appendix A Technical specifications  
Physical specifications  
Chassis dimensions and weights  
Chassis  
Dimensions (H × W × D)  
Weight  
5120-24G EI  
43.6 × 440 × 300 mm  
(1.72 × 17.32 × 11.81 in)  
5120-24G EI (2 slots)  
5120-24G EI TAA (2 slots)  
< 4.5 kg (9.92 lb)  
5120-24G-PoE+ EI (2 slots)  
43.6 × 440 × 420 mm  
(1.72 × 17.32 × 16.54 in)  
< 7.0 kg (15.43 lb)  
< 5 kg (11.02 lb)  
5120-24G-PoE+ EI TAA (2 slots)  
5120-48G EI  
43.6 × 440 × 300 mm  
(1.72 × 17.32 × 11.81 in)  
5120-48G EI (2 slots)  
5120-48G EI TAA (2 slots)  
5120-48G-PoE+ EI (2 slots)  
43.6 × 440 × 420 mm  
(1.72 × 17.32 × 16.54 in)  
< 7.5 kg (16.53 lb)  
2 kg (4.41 lb)  
3 kg (6.61 lb)  
5120-48G-PoE+ EI TAA (2 slots)  
43.6 × 210 × 210 mm  
(1.72 × 8.27 × 8.27 in)  
5120-8G SI  
5120-16G SI  
5120-24G SI  
43.6 × 440 × 160 mm  
(1.72 × 17.32 × 6.30 in)  
5120-8G-PPoE+ SI  
5120-8G-PoE+ SI  
43.6 × 300 × 260 mm  
(1.72 × 11.81 × 10.24 in)  
3 kg (6.61 lb)  
5120-24G-PPoE+ SI  
5120-24G-PoE+ SI  
43.6 × 440 × 420 mm  
(1.72 × 17.32 × 16.54 in)  
7 kg (15.43 lb)  
5 kg (11.02 lb)  
43.6 × 440 × 260 mm  
(1.72 × 17.32 × 10.24 in)  
5120-48G SI  
Ports and interface card slots  
10/100/1000Base-T  
auto-sensing Ethernet  
ports  
Console  
1000Base-X  
SFP ports  
Interafce  
card slots  
Chassis  
ports  
5120-24G EI  
1
1
24  
4
N/A  
2
5120-24G EI (2 slots)  
24  
4
5120-24G EI TAA (2 slots)  
5120-24G-PoE+ EI (2 slots)  
1
1
24, PoE+  
48  
4
4
2
5120-24G-PoE+ EI TAA (2 slots)  
5120-48G EI  
N/A  
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10/100/1000Base-T  
auto-sensing Ethernet  
ports  
Console  
ports  
1000Base-X  
SFP ports  
Interafce  
card slots  
Chassis  
5120-48G EI (2 slots)  
1
1
48  
4
4
2
2
5120-48G EI TAA (2 slots)  
5120-48G-PoE+ EI (2 slots)  
48, PoE+  
5120-48G-PoE+ EI TAA (2 slots)  
5120-8G SI  
1
1
1
1
1
1
1
1
8
1
4
4
1
1
4
4
4
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
5120-16G SI  
16  
5120-24G SI  
24  
5120-8G-PoE+ SI  
5120-8G-PPoE+ SI  
5120-24G-PoE+ SI  
5120-24G-PPoE+ SI  
5120-48G SI  
8, PoE+  
8, PPoE+  
24, PoE+  
24, PPoE+  
48  
NOTE:  
On a 5120 EI switch, the last four 10/100/1000Base-T Ethernet ports and the four SFP ports are  
copper/fiber combo ports in pairs, as shown in Table 17. They form four combo interfaces. When one  
port in a pair is activated, the other port automatically shuts down.  
Environmental specifications  
Chassis  
Operating temperature  
Relative humidity  
All chassis  
0°C to 45°C (32°F to 113°F)  
10% to 90%, noncondensing  
Power specifications  
Power input types  
Chassis  
AC-input power receptacle RPS receptacle  
All 5120 EI chassis,  
5120-24G-PoE+ SI  
1
1
1
All 5120 SI chassis but the  
5120-24G-PoE+ SI  
N/A  
The RPS can supply power to your switch when the AC power line fails or cannot supply sufficient power.  
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AC input voltage specifications  
Chassis  
Rated voltage range  
Max voltage range  
100 VAC to 240 VAC, 50 Hz or 60  
Hz  
All chassis  
90 VAC to 264 VAC, 47 Hz to 63 Hz  
RPS DC input voltage specifications and RPS compatibility  
RPS input rated voltage  
range  
Chassis  
Compatible RPS  
5120-24G EI  
5120-24G EI (2 slots)  
5120-24G EI TAA (2 slots)  
5120-48G EI  
10.8 VDC to 13.2 VDC  
A-RPS800 (JD183A)  
5120-48G EI (2 slots)  
5120-48G EI TAA (2 slots)  
5120-24G-PoE+ EI (2 slots)  
5120-24G-PoE+ EI TAA (2 slots)  
5120-48G-PoE+ EI (2 slots)  
5120-48G-PoE+ EI TAA (2 slots)  
–52 VDC to –55 VDC  
–52 VDC to –55 VDC  
A-RPS1600 (JG136A)  
A-RPS1600 (JG136A)  
5120-24G-PoE+ SI  
Power consumption specifications for non-PoE switches  
Minimum power  
consumption  
Chassis  
Maximum power consumption  
5120-24G EI  
35 W  
62 W  
5120-24G EI (2 slots)  
36 W  
54 W  
55 W  
103 W  
110 W  
145 W  
5120-24G EI TAA (2 slots)  
5120-48G EI  
5120-48G EI (2 slots)  
5120-48G EI TAA (2 slots)  
5120-8G SI  
5120-16G SI  
5120-24G SI  
5120-48G SI  
8.7 W  
14.4 W  
25.1 W  
31.5 W  
59.8 W  
11.9 W  
13.4 W  
25.7 W  
66  
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Power consumption specifications for PoE switches  
Minimum  
power  
consumption  
Maximum power  
consumption (including  
total PoE output)  
Maximum PoE Total PoE  
power per port output  
Chassis  
5120-24G-PoE+ EI (2  
slots)  
585 W at AC input  
30 W  
370 W  
62 W  
5120-24G-PoE+ EI  
TAA (2 slots)  
491 W at RPS DC input  
370 W at AC  
input  
5120-48G-PoE+ EI (2  
slots)  
740 W at RPS  
DC input (370  
W for ports 1 to  
24, and 370 W  
for ports 25 to  
48)  
651 W at AC input  
30 W  
90 W  
5120-48G-PoE+ EI  
TAA (2 slots)  
921 W at RPS DC input  
5120-8G-PoE+ SI  
5120-8G-PPoE+ SI  
30 W  
30 W  
180 W  
65 W  
19 W  
10 W  
230 W  
95 W  
370 W at AC  
input  
45.6 W at AC  
input  
528 W at AC input  
5120-24G-PoE+ SI  
5120-24G-PPoE+ SI  
30 W  
30 W  
740 W at RPS  
DC input  
27.5 W at RPS  
DC input  
832 W at RPS DC input  
170 W  
25.0 W  
255 W  
Cooling system  
All 5120 EI and 5120 SI switches use fixed fans for heat dissipation, and the airflow is from left to right.  
Chassis  
Fixed fans  
5120-24G EI  
5120-24G EI (2 slots)  
5120-24G EI TAA (2 slots)  
5120-48G EI  
4
5120-48G EI (2 slots)  
5120-48G EI TAA (2 slots)  
5120-24G-PoE+ EI (2 slots)  
5120-24G-PoE+ EI TAA (2 slots)  
5120-48G-PoE+ EI (2 slots)  
5120-48G-PoE+ EI TAA (2 slots)  
6
1
5120-8G SI  
5120-16G SI  
5120-24G SI  
5120-48G SI  
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Chassis  
Fixed fans  
5120-8G-PPoE+ SI  
5120-8G-PoE+ SI  
5120-24G-PPoE+ SI  
5120-24G-PoE+ SI  
1
3
3
6
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Appendix B FRUs and compatibility matrixes  
This appendix describes the FRUs available for the 5120 EI and 5120 SI switches and their compatibility.  
Interface cards (only for the 5120 EI switches)  
The interface cards in this section are available for all 5120 EI switches but the 5120-24G EI and  
5120-48G EI switches.  
Card  
model  
Product  
code  
Compatible transceiver  
modules/cables  
Description  
Support for IRF  
modules.”  
Provides two Gbps  
SFP fiber ports  
NOTE:  
LSPM2GP2P JD367A  
No  
The card does not support the  
transceiver module coded  
JD089B.  
Provides two 10  
Gbps SFP+ fiber  
ports  
modules” and “SFP+ cables.”  
LSPM2SP2P JD368B  
Yes  
Provides two 10  
Gbps XFP fiber ports  
modules.”  
LSPM1XP2P JD359B  
LSPM1XP1P JD361B  
LSPM1CX2P JD360B  
Yes  
Yes  
Yes  
Provides one 10  
Gbps XFP fiber port  
modules.”  
Provides two 10  
Gbps copper ports  
See “CX4 cables.”  
NOTE:  
For more information about the interface cards, see the user guides for the interface cards.  
SFP/SFP+/XFP transceiver modules and SFP+/CX4  
cables (only for the 5120 EI switches)  
NOTE:  
To guarantee the functionality of the SFP/SFP+/XFP ports, use only HP transceiver modules.  
The transceiver modules available for this switch series are subject to change over time. For the most  
up-to-date list of transceiver modules, consult your HP sales representative or technical support  
engineer.  
For the transceiver module specifications, see HP A-Series Switches Transceiver Modules User Guide.  
For information about installing a transceiver module, see Pluggable SFP/SFP+/XFP Transceiver  
Modules Installation Guide.  
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GE SFP transceiver modules  
Multimode  
fiber modal  
bandwidth  
(MHz × km)  
Central  
Cable/fiber  
diameter  
(μm)  
Max  
transmission  
distance  
Product  
wavelength  
Module description  
code  
(nm)  
550 m  
(1804.46 ft)  
500  
50/125  
500 m  
(1640.42 ft)  
400  
HP X120 1G SFP LC SX  
Transceiver  
JD118B  
850  
275 m  
(902.23 ft)  
200  
62.5/125  
220 m  
(721.78 ft)  
160  
10 km (6.21  
miles)  
9/125  
N/A  
500, 400  
500  
HP X120 1G SFP LC LX  
Transceiver  
550 m  
(1804.46 ft)  
JD119B  
1310  
50/125  
62.5/125  
9/125  
550 m  
(1804.46 ft)  
HP X125 1G SFP LC LH40  
JD061A  
40 km (24.86  
miles)  
1310  
1550  
1550  
1550  
N/A  
N/A  
N/A  
N/A  
1310nm Transceiver  
HP X120 1G SFP LC LH40  
JD062A  
40 km (24.86  
miles)  
9/125  
1550nm Transceiver  
HP X125 1G SFP LC LH70  
Transceiver  
70 km (43.50  
miles)  
JD063B  
9/125  
HP X120 1G SFP LC  
JD103A  
100 km (62.14  
miles)  
9/125  
LH100 Transceiver  
TX: 1310nm  
RX: 1490nm  
HP X120 1G SFP LC BX  
JD098B  
10 km (6.21  
miles)  
9/125  
9/125  
N/A  
10-U Transceiver  
TX: 1490nm  
RX: 1310nm  
HP X120 1G SFP LC BX  
JD099B  
10 km (6.21  
miles)  
N/A  
N/A  
10-D Transceiver  
HP X120 1G SFP RJ45 T  
Transceiver  
Category-5  
twisted pair  
100 m  
(328.08 ft)  
JD089B  
N/A  
IMPORTANT:  
You must use the transceiver modules coded JD098B and JD099B in pairs.  
10-GE SFP+ transceiver modules  
Central  
Fiber  
diameter  
(μm)  
Multimode fiber  
Max  
Module  
description  
wavelength  
Product code  
modal bandwidth transmission  
(MHz × km)  
distance  
(nm)  
300 m (984.25  
ft)  
HP X130 10G  
SFP+ LC SR  
JD092B  
850  
50/125  
2000  
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Central  
Fiber  
diameter  
(μm)  
Multimode fiber  
Max  
Module  
description  
wavelength  
Product code  
modal bandwidth transmission  
(MHz × km)  
distance  
(nm)  
500  
82 m (269.03 ft)  
66 m (216.54 ft)  
33 m (108.27 ft)  
26 m (85.3 ft.)  
400  
200  
62.5/125  
50/125  
160  
220 m (721.78  
ft)  
1500, 500  
400  
HP X130 10G  
SFP+ LC LRM  
Transceiver  
100 m (328.08  
ft)  
JD093B  
1310  
220 m (721.78  
ft)  
62.5/125  
9/125  
200, 160  
HP X130 10G  
SFP+ LC LR  
Transceiver  
10 km (6.21  
miles)  
JD094B  
JG234A  
NOTE:  
1310  
1550  
N/A  
N/A  
HP X130 10G  
SFP+ LC ER  
40km  
40 km (24.86  
miles)  
9/125  
Transceiver  
For the SFP+ cables available for connecting the SFP+ ports, see “SFP+ cables.”  
SFP+ cables  
Product code  
Cable description  
Cable length  
0.65 m (2.13 ft)  
1.2 m (3.94 ft)  
3 m (9.84 ft)  
JD095C  
JD096C  
JD097C  
JG081C  
HP X240 10G SFP+ SFP+ 0.65m DA Cable  
HP X240 10G SFP+ SFP+ 1.2m DA Cable  
HP X240 10G SFP+ SFP+ 3m DA Cable  
HP X240 10G SFP+ SFP+ 5m DA Cable  
5 m (16.40 ft)  
Figure 86 SFP+ cable  
(1) Pull latch  
(2) Connector  
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10-GE XFP transceiver modules  
Multimode  
fiber modal  
bandwidth  
(MHz × km)  
Central  
wavelength  
(nm)  
Fiber  
diameter  
(μm)  
Module  
description  
Max transmission  
distance  
Product code  
2000  
500  
400  
220  
160  
300 m (984.25 ft)  
82 m(269.03 ft)  
66 m(216.54 ft)  
33 m (108.27 ft)  
26 m (85.3 ft)  
50/125  
62.5/125  
9/125  
HP X130 10G  
XFP LC SR  
Transceiver  
JD117B  
850  
HP X130 10G  
XFP LC LR  
1310nm  
JD108B  
JD121A  
JD107A  
1310  
1550  
1550  
N/A  
N/A  
N/A  
10 km (6.21 miles)  
40 km (24.86 miles)  
80 km (49.71 miles)  
Transceiver  
HP X135 10G  
XFP LC ER  
Transceiver  
9/125  
9/125  
HP X130 10G  
XFP LC ZR  
1550nm  
Transceiver  
CX4 cables  
Product code  
Cable description  
Connector type  
Cable length  
HP X230 Local Connect 50cm  
CX4 Cable  
JD363B  
4X Infiniband  
0.5 m (19.69 in)  
HP X230 Local Connect 100cm  
CX4 Cable  
JD364B  
JD365A  
4X Infiniband  
1 m (39.37 in)  
3 m (118.11 in)  
HP X230 CX4 to CX4 3m Cable 4X Infiniband  
Figure 87 CX4 cable  
(1) Pull latch  
(2) Connector  
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SFP transceiver modules and SFP Stacking Kit (only  
for the 5120 SI switches)  
NOTE:  
To guarantee the functionality of the SFP ports, use only HP SFP transceiver modules.  
The SFP transceiver modules available for this switch series are subject to change over time. For the most  
up-to-date list of SFP transceiver modules, consult your HP sales representative or technical support  
engineer.  
For the SFP transceiver module specifications, see HP A-Series Switches Transceiver Modules User  
Guide.  
Multimode  
Central  
Cable/fiber  
diameter  
(μm)  
Maximum  
transmission  
distance  
Product  
code  
fiber modal  
bandwidth  
(MHz × km)  
wavelength  
Module description  
(nm)  
550 m  
(1804.46 ft)  
500  
50/125  
500 m  
(1640.42 ft)  
400  
HP X120 1G SFP LC SX  
Transceiver  
JD118B  
JD119B  
850  
275 m  
(902.23 ft)  
200  
62.5/125  
220 m  
(721.78 ft)  
160  
10 km (6.21  
miles)  
9/125  
N/A  
500, 400  
500  
HP X120 1G SFP LC LX  
Transceiver  
550 m  
(1804.46 ft)  
1310  
50/125  
62.5/125  
9/125  
550 m  
(1804.46 ft)  
HP X125 1G SFP LC LH40  
1310nm Transceiver  
40 km (24.86  
miles)  
JD061A  
JD062A  
JD063B  
1310  
1550  
1550  
N/A  
N/A  
N/A  
HP X120 1G SFP LC LH40  
1550nm Transceiver  
40 km (24.86  
miles)  
9/125  
HP X125 1G SFP LC LH70  
Transceiver  
70 km (43.50  
miles)  
9/125  
TX: 1310nm  
RX: 1490nm  
HP X120 1G SFP LC BX  
10-U Transceiver  
10 km (6.21  
miles)  
JD098B  
JD099B  
9/125  
9/125  
N/A  
N/A  
TX: 1490nm  
RX: 1310nm  
HP X120 1G SFP LC BX  
10-D Transceiver  
10 km (6.21  
miles)  
HP X120 1G SFP RJ45 T  
Transceiver  
Category-5  
twisted pair  
100 m  
(328.08 ft)  
JD089B  
JD324A  
N/A  
N/A  
N/A  
N/A  
HP A3600 Switch SFP  
Stacking Kit  
UTP/STP  
1.5 m (4.92 ft)  
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IMPORTANT:  
You must use the transceiver modules coded JD098B and JD099B in pairs.  
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Appendix C Ports and LEDs  
Ports  
Console port  
Every 5120 EI or 5120 SI switch provides one console port on the front panel.  
Table 15 Console port specifications  
Item  
Specification  
Connector type  
Compliant standard  
Transmission baud rate  
RJ-45  
EIA/TIA-232  
9600 bps (default) to 115200 bps  
Provides connection to an ASCII terminal.  
Provides connection to the serial port of a local or remote  
(through a pair of modems) PC running terminal emulation  
program.  
Service  
10/100/1000Base-T Ethernet port  
Table 16 10/100/1000Base-T Ethernet port specifications  
Item  
Specification  
Connector type  
RJ-45  
10 Mbps, half/full duplex  
100 Mbps, half/full duplex  
1000 Mbps, full duplex  
MDI/MDI-X, auto-sensing  
Interface standard  
Max transmission distance  
Transmission medium  
Standards  
100 m (328.08 ft)  
Category-5 (or above) twisted pair cable  
IEEE 802.3i, 802.3u, 802.3ab  
SFP port  
All 5120 EI and 5120 SI switches have 1000Base-X SFP ports. For the SFP transceiver modules available  
for the 5120 EI switches, see “GE SFP transceiver modules.” For the SFP transceiver modules available for  
75  
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Combo interface (only available on the 5120 EI switches)  
On a 5120 EI switch, the last four 10/100/1000Base-T Ethernet ports and the four SFP ports are  
copper/fiber combo ports in pairs, as shown in Table 17. They form four combo interfaces. When one  
port in a pair is activated, the other port automatically shuts down. For more information about combo  
interfaces, see HP 5120 EI Switch Series Configuration Guides.  
Table 17 Copper/fiber combo ports in pairs  
Chassis  
SFP port  
10/100/1000Base-T Ethernet port  
GigabitEthernet 1/0/22  
5120-24G EI (2 slots)  
GigabitEthernet 1/0/25  
GigabitEthernet 1/0/26  
GigabitEthernet 1/0/27  
5120-24G EI TAA (2 slots)  
5120-24G-PoE+ EI (2 slots)  
5120-24G-PoE+ EI TAA (2 slots)  
5120-24G EI  
GigabitEthernet 1/0/24  
GigabitEthernet 1/0/21  
GigabitEthernet 1/0/28  
GigabitEthernet 1/0/23  
5120-48G EI (2 slots)  
GigabitEthernet 1/0/49  
GigabitEthernet 1/0/50  
GigabitEthernet 1/0/51  
GigabitEthernet 1/0/46  
GigabitEthernet 1/0/48  
GigabitEthernet 1/0/45  
5120-48G EI TAA (2 slots)  
5120-48G-PoE+ EI (2 slots)  
5120-48G-PoE+ EI TAA (2 slots)  
5120-48G EI  
GigabitEthernet 1/0/52  
GigabitEthernet 1/0/47  
LEDs (for the 5120 EI switches)  
Table 18 LEDs at a glance  
LED  
Availability  
Entire series  
Entire series  
Entire series  
Entire series  
Entire series  
Entire series  
Entire series (except the 5120-24G EI and 5120-48G EI)  
System status LED  
The system status LED shows the operating status of the switch.  
Table 19 System status LED description  
LED mark  
Status  
Description  
PWR  
Steady green  
The switch is operating properly.  
The switch is performing power-on self  
test (POST).  
Flashing green (1 Hz)  
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LED mark  
Status  
Description  
Steady red  
POST has failed.  
Flashing yellow (1 Hz)  
Off  
Some ports have failed to pass POST.  
The switch is powered off.  
RPS status LED  
The RPS status LED shows the operating status of the RPS DC input.  
Table 20 RPS status LED description for the non-PoE switches  
LED mark  
Status  
Description  
Both the RPS DC input and the AC input are normal, or an RPS is  
connected and the AC input is normal.  
Steady green  
RPS  
The RPS DC input is normal, but the AC input is disconnected or  
has failed.  
Steady yellow  
Off  
No RPS is connected.  
Table 21 RPS status LED description for the PoE switches  
LED mark  
Status  
Description  
Steady green  
Both the RPS DC input and the AC input are normal.  
The RPS power input is normal, but the AC input is disconnected or  
has failed.  
RPS  
Steady yellow  
Off  
The RPS power input is abnormal or no RPS is connected.  
Port mode LED  
The port mode LED indicates the type of information that the network port LEDs are showing. You can use  
the port LED mode switching button to change the type of displayed port information.  
Table 22 Port mode LED description  
LED mark  
Status  
Description  
Steady green  
The network port LEDs are showing port rates.  
Flashing green (1 Hz) (available  
only for the PoE switches)  
The network port LEDs are showing the status of  
PoE power supply on the ports.  
Mode  
The network port LEDs are showing duplex  
modes.  
Steady yellow  
Seven-segment LED  
The seven-segment LED, together with the system status LED, shows detailed system operating information  
(see Table 23).  
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The seven-segment LED can also show the total PoE output power as a percentage of the maximum PoE  
output power that a PoE switch can supply (see Table 24). The PoE switches include 5120-24G-PoE+ EI (2  
slots), 5120-24G-PoE+ EI TAA (2 slots), 5120-48G-PoE+ EI (2 slots), and 5120-48G-PoE+ EI TAA (2 slots).  
Table 23 Seven-segment LED description (I)  
System status LED  
(PWR) status  
Seven-segment LED (Unit) status  
Description  
The LED displays numbers one by one.  
POST is running, and the LED displays  
the ongoing test item ID.  
Flashing green  
The LED displays flashing numbers.  
POST has failed, and the LED flashes  
the ID of the failed test item.  
Flashing red  
A bar rotates clockwise around the LED.  
Flashing green  
Software is loading.  
The LED displays a flashing F character.  
The switch is experiencing a fan  
failure.  
Steady red  
Steady red  
The LED displays a flashing t character.  
The LED displays a capital C character.  
The switch is in an over-temperature  
condition.  
The switch is the command switch in a  
cluster.  
The LED displays an S character.  
The switch is a member switch in a  
cluster.  
Steady green  
The LED displays a lowercase c character.  
The switch is a candidate switch for a  
cluster.  
The member ID of the switch in an IRF  
fabric.  
The LED displays a number.  
The 5120-24G EI and 5120-48G EI  
switches do not support IRF.  
Table 24 Seven-segment LED description (II)  
Port mode LED  
(Mode) status  
System status LED Seven-segment  
Description  
(PWR) status  
LED (Unit) status  
The LED displays  
different signs.  
Flashing green (1  
Hz) (PoE mode)  
For example, the  
the switch is outputting 0 to 20% of the  
maximum PoE output power.  
sign indicates that  
Steady green  
81 - 100  
61 - 80%  
41 - 60%  
21 - 40%  
0
- 20%  
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10/100/1000Base-T Ethernet port LED  
Each 10/100/1000Base-T auto-sensing Ethernet port has a status LED to show port operating status and  
activities. The port mode LED indicates the type of information (for example, port rate or duplex mode)  
that the port LEDs are showing. You can use the port LED mode switching button to change the type of  
displayed port information.  
Table 25 10/100/1000Base-T auto-sensing Ethernet port LEDs description  
Port mode LED (Mode)  
status  
Port LED status  
Description  
The port is operating at 1000 Mbps. The port LED  
fast flashes when the port is sending or receiving  
data.  
Steady green  
The port is operating at 10/100 Mbps. The port LED  
fast flashes when the port is sending or receiving  
data.  
Steady green (rate mode)  
Steady yellow  
Flashing yellow (3 Hz)  
Off  
POST has failed on the port.  
No link is present on the port.  
PoE power supply is normal.  
Steady green  
The device attached to the port requires power  
higher than the maximum or currently available PoE  
output power on the port.  
Flashing green (1 Hz)  
Steady yellow  
Flashing green (1 Hz)  
(PoE mode, available  
only for PoE switches)  
The port is experiencing a PoE failure.  
The port is not supplying power, because the device  
attached to the port is not a powered device.  
Flashing yellow (3 Hz)  
Off  
POST has failed on the port.  
The port is not supplying PoE power.  
The port is operating in full duplex mode. The port  
LED fast flashes when the port is sending or  
receiving data.  
Steady green  
Steady yellow  
The port is operating in half duplex mode. The port  
LED fast flashes when the port is sending or  
receiving data.  
Steady yellow (duplex  
mode)  
Flashing yellow (3 Hz)  
Off  
POST has failed on the port.  
No link is present on the port.  
SFP port LED  
Each 1000Base-X SFP port has a status LED to show port operating status and activities. The port mode  
LED indicates the type of information (for example, port rate or duplex mode) that the port LEDs are  
showing. You can use the port LED mode switching button to change the type of displayed port  
information.  
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Table 26 SFP port LEDs description  
Port mode LED (Mode) status Port LED status  
Description  
The port is operating at 1000 Mbps.  
The port LED fast flashes when the port  
is sending or receiving data.  
Steady green  
Steady green (rate mode) or  
flashing green (1 Hz, PoE mode)  
Flashing yellow (3 Hz)  
POST has failed on the port.  
No link is present on the port.  
Off  
The port is operating in full duplex  
mode. The port LED fast flashes when  
the port is sending or receiving data.  
Steady green  
Steady yellow (duplex mode)  
Flashing yellow (3 Hz)  
Off  
POST has failed on the port.  
No link is present on the port.  
Interface card status LED  
Table 27 Interface card status LED description  
LED mark  
Status  
Description  
Green  
The interface card is in position and operating properly.  
MOD1  
MOD2  
The switch does not support the interface card model, or the interface  
card has failed.  
Flashing yellow  
Off  
The expansion interface card slot is empty.  
LEDs (for the 5120 SI switches)  
Table 28 LEDs at a glance  
LED  
Availability  
Entire series  
5120-24G-PoE+ SI  
5120-8G-PPoE+ SI, 5120-8G-PoE+ SI, 5120-24G-PPoE+ SI,  
5120-24G-PoE+ SI  
Entire series  
Entire series  
Power LED  
The power LED shows the operation status of the switch.  
Table 29 Power LED description  
LED mark  
Status  
Description  
Power  
Steady green  
The switch is operating properly.  
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LED mark  
Status  
Description  
The system is performing power-on self test (POST) or  
downloading software.  
Flashing green (1 Hz)  
Flashing green (3 Hz)  
Off  
POST has failed or another fatal error has been detected.  
The switch has been powered off.  
RPS status LED  
The 5120-24G-PoE+ SI switch has one RPS status LED on its front panel to show the operating status of the  
RPS DC input.  
Table 30 RPS status LED description  
LED mark  
Status  
Description  
Steady green  
Off  
The RPS DC input is normal.  
RPS  
The RPS unit is not connected or the RPS DC input is abnormal.  
Port mode LED  
The 5120-8G-PPoE+ SI, 5120-8G-PoE+ SI, 5120-24G-PPoE+ SI and 5120-24G-PoE+ SI switches have a  
port mode LED to indicate the type of information that the network port LEDs (excluding the SFP port LEDs)  
are showing. You can use the port LED mode switching button to change the type of displayed port  
information.  
Table 31 Port mode LED description  
LED mark  
Status  
Description  
Steady green  
The network port LEDs are showing port rates.  
Mode  
The network port LEDs are showing the status of PoE power  
supply on the ports.  
Flashing green (1 Hz)  
10/100/1000Base-T Ethernet port LED  
The 5120-48G SI switch has one bi-color LED (see Table 32) for each 10/100/1000Base-T Ethernet port,  
and all other 5120 SI switches have two LEDs (see Table 33) for each 10/100/1000Base-T Ethernet port.  
The 5120-8G-PPoE+ SI, 5120-24G-PoE+ SI, 5120-24G-PPoE+ SI, and 5120-24G-PoE+ SI switches also use  
a port mode LED to indicate the type of information that the port LEDs are displaying (see Table 34).  
Table 32 Ethernet port LED description (5120-48G SI)  
Status  
Description  
Steady green  
Fast flashing green  
Steady yellow  
Fast flashing yellow  
The port is operating at 1000 Mbps.  
The port is sending or receiving data at 1000 Mbps.  
The port is operating at 10/100 Mbps.  
The port is sending or receiving data at 10/100 Mbps.  
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Status  
Description  
Off  
No link is present on the port.  
Table 33 Ethernet port LEDs description (5120-16G SI/5120-24G SI)  
LED  
Status  
Description  
On  
The port is operating at 1000 Mbps.  
The port is sending or receiving data at 1000  
Mbps.  
Fast flashing  
Green  
The port has no link or is not operating at 1000  
Mbps.  
Off  
On  
The port is operating at 10/100 Mbps.  
The port is sending or receiving data at 10/100  
Mbps.  
Fast flashing  
Yellow  
The port has no link or is not operating at 10/100  
Mbps.  
Off  
Table 34 Ethernet port LED description (5120-24G-PPoE+ SI/5120-24G-PoE+ SI)  
Port mode LED (Mode)  
Port LED  
Port LED status  
On  
Description  
status  
The port is operating at 1000 Mbps.  
The port is sending or receiving data at 1000  
Mbps.  
Fast flashing  
Green  
The port has no link or is not operating at 1000  
Mbps.  
Off  
Steady green (rate  
mode)  
On  
The port is operating at 10/100 Mbps.  
The port is sending or receiving data at  
10/100 Mbps.  
Yellow  
Fast flashing  
Off  
On  
No link is present on the port.  
PoE power supply is normal.  
The device attached to the port requires power  
higher than the maximum or currently  
available PoE output power on the port.  
Green  
Yellow  
Flashing at 3 Hz  
Flashing green (PoE  
mode)  
Off  
On  
The port is not supplying power.  
The device attached to the port is not a  
powered device or a PoE failure has occurred.  
The port is supplying power normally or not  
supplying power.  
Off  
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1000Base-X SFP port LED  
Table 35 1000Base-X SFP port LEDs description  
Status  
Description  
Steady green  
Flashing green  
Off  
The port is operating at 1000 Mbps.  
The port is sending or receiving data.  
No link is present on the port.  
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Support and other resources  
Contacting HP  
For worldwide technical support information, see the HP support website:  
Before contacting HP, collect the following information:  
Product model names and numbers  
Technical support registration number (if applicable)  
Product serial numbers  
Error messages  
Operating system type and revision level  
Detailed questions  
Subscription service  
HP recommends that you register your product at the Subscriber's Choice for Business website:  
After registering, you will receive email notification of product enhancements, new driver versions,  
firmware updates, and other product resources.  
Related information  
Documents  
To find related documents, browse to the Manuals page of the HP Business Support Center website:  
For related documentation, navigate to the Networking section, and select a networking category.  
For a complete list of acronyms and their definitions, see HP A-Series Acronyms.  
Websites  
HP download drivers and software http://www.hp.com/support/downloads  
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Conventions  
This section describes the conventions used in this documentation set.  
Command conventions  
Convention  
Boldface  
Italic  
Description  
Bold text represents commands and keywords that you enter literally as shown.  
Italic text represents arguments that you replace with actual values.  
Square brackets enclose syntax choices (keywords or arguments) that are optional.  
[ ]  
Braces enclose a set of required syntax choices separated by vertical bars, from which  
you select one.  
{ x | y | ... }  
[ x | y | ... ]  
{ x | y | ... } *  
[ x | y | ... ] *  
Square brackets enclose a set of optional syntax choices separated by vertical bars, from  
which you select one or none.  
Asterisk-marked braces enclose a set of required syntax choices separated by vertical  
bars, from which you select at least one.  
Asterisk-marked square brackets enclose optional syntax choices separated by vertical  
bars, from which you select one choice, multiple choices, or none.  
The argument or keyword and argument combination before the ampersand (&) sign can  
be entered 1 to n times.  
&<1-n>  
#
A line that starts with a pound (#) sign is comments.  
GUI conventions  
Convention  
Boldface  
>
Description  
Window names, button names, field names, and menu items are in bold text. For  
example, the New User window appears; click OK.  
Multi-level menus are separated by angle brackets. For example, File > Create > Folder.  
Symbols  
Convention  
WARNING  
Description  
An alert that calls attention to important information that if not understood or followed can  
result in personal injury.  
An alert that calls attention to important information that if not understood or followed can  
result in data loss, data corruption, or damage to hardware or software.  
CAUTION  
An alert that calls attention to essential information.  
An alert that contains additional or supplementary information.  
An alert that provides helpful information.  
IMPORTANT  
NOTE  
TIP  
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Network topology icons  
Represents a generic network device, such as a router, switch, or firewall.  
Represents a routing-capable device, such as a router or Layer 3 switch.  
Represents a generic switch, such as a Layer 2 or Layer 3 switch, or a router that supports  
Layer 2 forwarding and other Layer 2 features.  
Port numbering in examples  
The port numbers in this document are for illustration only and might be unavailable on your device.  
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Index  
LEDs (for the 5120 EI switches),76  
LEDs (for the 5120 SI switches),80  
A
Accessing the IRF fabric to verify the configuration,60  
M
C
Mounting the switch on a workbench,30  
Mounting the switch through magnet mounting,32  
Mounting the switch to a wall,30  
Configuration terminal problems,63  
Configuring basic IRF settings,59  
Connecting the console cable,44  
Connecting the physical IRF ports,60  
Connecting the power cord,38  
Contacting HP,84  
P
Password loss,61  
Physical specifications,64  
Planning IRF fabric setup,54  
Ports,75  
Conventions,85  
Cooling system,67  
Power specifications,65  
Power supply failure,61  
Powering on the switch,48  
E
Environmental specifications,65  
Examining the installation site,13  
R
F
Related information,84  
Fan failure (only for the 5120 EI switches),63  
S
G
Safety recommendations,13  
Setting terminal parameters,45  
Setting up the configuration environment,44  
Grounding the switch,34  
I
SFP transceiver modules and SFP Stacking Kit (only for  
the 5120 SI switches),73  
SFP/SFP+/XFP transceiver modules and SFP+/CX4  
cables (only for the 5120 EI switches),69  
Installation tools,15  
Installing a 5120 EI switch in a 19-inch rack,17  
Installing a 5120 SI switch in a 19-inch rack,24  
Installing/removing an interface card (only for the  
5120 EI switches),41  
V
Interface cards (only for the 5120 EI switches),69  
IRF fabric setup flowchart,53  
Verifying the installation,43  
L
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