HP 5120 SI Series User manual

HPE FlexNetwork 5120 SI Switch Series
Installation Guide
Part number: 5998-8481a
Document version: 6W100-20170303

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i
Contents
Preparing for installation ··································································· 1
Safety recommendations ·········································································································· 1
Examining the installation site···································································································· 2
Temperature/humidity········································································································ 2
Cleanliness····················································································································· 2
EMI······························································································································· 3
Laser safety···················································································································· 3
Installation tools······················································································································ 3
Installation accessories ············································································································ 4
Installing the switch·········································································· 6
Installing the switch in a 19-inch rack··························································································· 6
Mounting brackets and mounting positions ············································································· 7
Attaching the mounting brackets to the switch chassis······························································· 7
Rack-mounting the switch··································································································· 9
Mounting the switch on a workbench ··························································································11
Grounding the switch ··············································································································11
Grounding the switch with a grounding strip···········································································11
Grounding the switch with a grounding conductor buried in the earth ground ·································13
Grounding the switch by using the AC power cord···································································14
Connecting the power cord·······································································································15
Connecting the AC power cord ···························································································15
Connecting the switch to a –52 to –55 VDC output RPS ···························································15
Verifying the installation···········································································································16
Accessing the switch for the first time ·················································17
Setting up the configuration environment ·····················································································17
Connecting the console cable ···································································································17
Console cable·················································································································17
Connecting the console cable·····························································································17
Setting terminal parameters······································································································18
Powering on the switch············································································································18
Setting up an IRF fabric···································································19
IRF fabric setup flowchart ········································································································19
Planning IRF fabric setup·········································································································20
Planning IRF fabric size and the installation site······································································20
Identifying the master switch and planning IRF member IDs ······················································20
Planning IRF topology and connections ················································································21
Identifying physical IRF ports on the member switches·····························································22
Planning the cabling scheme······························································································22
Configuring basic IRF settings···································································································23
Connecting the physical IRF ports······························································································23
Accessing the IRF fabric to verify the configuration ········································································23
Maintenance and troubleshooting ······················································24
Power supply failure ···············································································································24
Configuration terminal problems ································································································25
Appendix A Chassis views and technical specifications ··························26
Chassis views ·······················································································································26
5120 16G SI···················································································································26
5120 24G SI···················································································································26
5120 48G SI···················································································································27
5120 8G PoE+ (65W) SI ···································································································27
5120 8G PoE+ (180W) SI··································································································28
5120 24G PoE+ (370W) SI ································································································29

ii
Technical specifications···········································································································30
Chassis dimensions and weights·························································································30
Ports ····························································································································30
Environmental specifications·····································································································30
Power specifications···············································································································30
Power input types············································································································30
AC input voltage specifications ···························································································31
RPS DC input voltage specifications and RPS compatibility·······················································31
Power consumption specifications for non-PoE switches ··························································31
Power consumption specifications for PoE switches ································································31
Cooling system······················································································································31
Appendix B FRUs and compatibility matrixes ·······································33
SFP transceiver modules and SFP Stacking Kit ············································································33
Appendix C Ports and LEDs ·····························································35
Ports···································································································································35
Console port ··················································································································35
10/100/1000Base-T Ethernet port························································································35
SFP port························································································································35
LEDs ··································································································································35
Power LED ····················································································································36
RPS status LED··············································································································36
Port mode LED ···············································································································36
10/100/1000Base-T Ethernet port LED ·················································································37
1000Base-X SFP port LED ································································································38
Document conventions and icons ······················································39
Conventions ·························································································································39
Network topology icons ···········································································································40
Support and other resources·····························································41
Accessing Hewlett Packard Enterprise Support·············································································41
Accessing updates ·················································································································41
Websites·······················································································································42
Customer self repair·········································································································42
Remote support ··············································································································42
Documentation feedback···································································································42
Index···························································································43

1
Preparing for installation
The HPE 5120 SI Switch Series includes the models in Table 1.
Table 1 HPE 5120 SI Switch Series models
Type
Product
code
HPE description
Alias
Non-PoE
JE073B
HPE 5120 16G SI Switch
5120 16G SI
JE074B
HPE 5120 24G SI Switch
5120 24G SI
JE072B
HPE 5120 48G SI Switch
5120 48G SI
PoE
JG091B
HPE 5120 24G PoE+ (370W) SI Switch
5120 24G PoE+ (370W) SI
JG310B
HPE 5120 8G PoE+ (65W) SI Switch
5120 8G PoE+ (65W) SI
JG309B
HPE 5120 8G PoE+ (180W) SI Switch
5120 8G PoE+ (180W) SI
IMPORTANT:
For regulatory identification purposes, the HPE 5120 8G PoE+ (65W) SI Switch and HPE 5120 8G
PoE+ (180W) SI Switch 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 HPE 5120, or product numbers JG310B and JG309B.
Table 2 Regulatory Model Numbers in the HPE 5120 8G SI Switch Series
Product code
RMN
HPE description
JG310B
BJNGA-AD0007
HPE 5120 8G PoE+ (65W) SI Switch
JG309B
BJNGA-AD0008
HPE 5120 8G PoE+ (180W) SI Switch
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 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 wrist strap to avoid damaging the units.

2
Examining the installation site
The switch must beused 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 outlet 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 reliably grounded.
To ensurecorrect operation and long servicelife of yourswitch, installit in an environment that meets
the requirements described in the following subsections.
Temperature/humidity
Maintain temperature and humidity in the equipment room in the acceptable range.
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 Chassis views and technical
specifications."
Cleanliness
Dust buildup on the chassis might 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 3 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 limits on salts, acids, and sulfides to eliminate corrosion and
premature aging of components, as shown in Table 4.
Table 4 Harmful gas limits in the equipment room
Gas
Maximum concentration (mg/m3)
SO2
0.2
H2S
0.006
NH3
0.05
Cl2
0.01

3
EMI
All electromagnetic interference (EMI) sources, from outside or inside of the switch and application
system, adversely affect the switch in the following ways:
A conduction pattern of capacitance coupling.
Inductance coupling.
Electromagnetic wave radiation.
Common impedance (including the grounding system) coupling.
To prevent EMI, perform the following tasks:
IfAC 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.
Laser safety
The switch is Class 1 laser device.
WARNING!
Do not stare into any fiber port when the switch has power. The laser light emitted from the optical
fiber might hurt your eyes.
Installation tools
Flathead screwdriver
Phillips screwdriver
Needle-nose pliers
Wire-stripping pliers
Diagonal pliers
ESD wrist strap
Blow dryer
All these installation tools are user supplied.

4
Installation accessories
Table 5 Installation accessories
Product
code
Description
Quantity
Applicable models
5184-6978
1 U mounting bracket kit
(including one pair of mounting
brackets and eight M4
countersunk screws)
1 kit
5120 16G SI
5120 24G SI
5066-0850
1 U mounting bracket kit
(including one pair of mounting
brackets and eight M4
countersunk screws)
1 kit
5120 48G SI
5120 24G PoE+ (370W)
SI
JD323A
1 U mounting bracket kit
(including one pair of mounting
brackets and eight M4
countersunk screws)
Optional
5120 8G PoE+ (65W) SI
5120 8G PoE+ (180W) SI
N/A
M6 screw and floating nut
User supplied
All 5120 SI switches
5185-9292
Grounding cable (with one ring
terminal)
1
5120 16G SI
5120 24G SI
5120 48G SI
5120 8G PoE+ (65W) SI
5120 8G PoE+ (180W) SI
5184-6729
Grounding cable (with two ring
terminals)
1
5120 24G PoE+ (370W) SI
5188-9197
Grounding screw (M3*6)
1
5120 16G SI
5120 24G SI
5120 48G SI
5120 8G PoE+ (65W) SI
5120 24G PoE+ (370W)
SI
5185-9578
Grounding screw (M3*8)
1
5120 8G PoE+ (180W) SI

5
Product
code
Description
Quantity
Applicable models
5184-6719
Console cable
1
All 5120 SI switches
5184-7298
Rubber pads
1
All 5120 SI switches

6
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 Hewlett Packard Enterprise agent for permission. Otherwise, Hewlett
Packard Enterprise shall not be liable for any consequence caused thereby.
Figure 1 Hardware installation flow
Installing the switch in a 19-inch rack
Figure 2 shows the general procedure for installing the switch in a 19-inch rack.
Figure 2 Install the switch in a 19-inch rack
Start
Install the switch to
the specified position
Connect the ground wire
Connect the power cord
Verify the Installation
Power on the switch
Operates normally？Power off the
switch
Troubleshoot
Yes
No
End
Install the transceivers and
cables
Determine the mounting position
for the mounting brackets Attach the mounting brackets to the switch Mount the switch in a rack

7
Mounting brackets and mounting positions
Table 6 Mounting brackets for the switch
Chassis
Bracket view
Mounting position
5120 16G SI
5120 24G SI
See callout A in Figure 3.
Front mounting (see Figure 4)
Rear mounting (see Figure 5)
5120 8G PoE+ (180W) SI
See callout B in Figure 3.
Front mounting (see Figure 6)
Rear mounting (see Figure 7))
5120 8G PoE+ (65W) SI
5120 24G PoE+ (370W) SI
See callout C in Figure 3.
Front mounting (see Figure 8)
Mid-mounting (see Figure 9)
Rear mounting (see Figure 10)
5120 48G SI
Front mounting (see Figure 8)
Rear mounting (see Figure 10)
Figure 3 Mounting brackets
(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
1. Identify the correct mounting position (see Table 6).
2. Align the round holes in one bracket with the holes in the mounting position.
3. Use screws to attach the mounting bracket to the chassis.
4. Repeat the preceding steps to attach the other mounting bracket to the chassis.
(A) (B)
(C)
1 2
12
1
2

8
Figure 4 Front mounting position (5120 16G SI/5120 24G SI)
(1) Front panel
Figure 5 Rear mounting position (5120 16G SI/5120 24G SI)
(1) Front panel
Figure 6 Front mounting position (5120 8G PoE+ (180W) SI/5120 8G PoE+ (65W) SI)
(1) Front panel
Figure 7 Rear mounting position (5120 8G PoE+ (180W) SI/5120 8G PoE+ (65W) SI)
(1) Front panel
1
1
1
1

9
Figure 8 Front mounting position (5120 24G PoE+ (370W) SI/5120 48G SI)
(1) Front panel
Figure 9 Mid-mounting position (5120 24G PoE+ (370W) SI)
(1) Front panel
Figure 10 Rear mounting position (5120 24G PoE+ (370W) 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 wrist strap and make sure it makes good skin contact and is reliably grounded.
2. Verify that the rack is reliably grounded and can support the weight of the switch chassis and all
its accessories.
3. Verify that the mounting brackets have been secured to the switch chassis.
4. Install cage nuts (user-supplied) in the mounting holes in the rack posts.
5. One person holds the switch chassis and aligns the oval holes in thebrackets with the mounting
holes in the rack posts, and the other person attaches the mounting brackets with M6 screws
(user-supplied) to the rack, as shown in Figure 11 or Figure 12.
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NOTE:
If a rack shelf is available, you can put the switch on the rack shelf, slide the switch to an appropriate
location, and attach the switch to the rack with the mounting brackets.
Figure 11 Mounting the switch in a rack (5120 16G SI)
(1) Front panel
(2) Rear panel
Figure 12 Mounting the switch in a rack (5120 24G PoE+ (370W) SI)
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(1) Front panel
(2) Rear panel
Mounting the switch on a workbench
To mount the switch on a workbench:
1. Verify that the workbench is sturdy and reliably grounded.
2. Place the switch with bottom up, and clean the round holes in the chassis bottom with dry cloth.
3. Attach the rubber feet to the four round holes in the chassis bottom.
4. Place the switch with upside up on the workbench.
NOTE:
Ensure good ventilation and 10 cm (3.9 in) of clearance around the chassis for heat dissipation.
Avoid placing heavy objects on the switch.
Grounding the switch
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.
The power interface and grounding terminals in this section are for illustration only.
The 5120 24G PoE+ (370W) SIswitch comes with a ring terminal for connecting to a grounding strip.
For other switch models, you must prepare ring terminals yourself.
To connect the grounding cable, ,follow these steps:
1. Identifythe grounding point (with a grounding sign) on the rear panel of the switch chassis, and
remove the grounding screw from the grounding point.
2. Attach the grounding screw to the ring terminal of the grounding cable.
3. Use a screwdriver to fasten the grounding screw into the grounding screw hole.
Figure 13 Connecting the grounding cable to the grounding hole of the switch chassis
(1) Grounding sign
(2) Grounding hole
(3) Ring terminal
(4) Grounding cable
(5) Grounding screw
4. Remove the hex nut of a grounding post on the grounding strip.
5. Cut the grounding cable as appropriate for connecting to the grounding strip.
6. Make the connector for connecting to the grounding strip:
If a ring 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 ring terminal, secure the metal part of the cable to the ring 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 14).
If no ring 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 14).Attach the ring
terminal or the ring to the grounding strip through the grounding post, and fasten it with the
removed hex nut, see Figure 15.
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Figure 14 Making a grounding cable connector
(B)
(A)
Figure 15 Connecting the grounding cable to a grounding strip
(1) Grounding post
(2) Grounding strip
(3) Grounding cable
(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, hammera 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.
(A)
(B)
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Figure 16 Grounding the switch by burying the grounding conductor into the earth ground
(1) Grounding screw
(2) Grounding cable
(3) Earth
(4) Joint
(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 theAC 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 17 Grounding 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 the grounding cable has been correctly connected before powering on the switch.
Use Table 7 to identify the power cord connection procedures available for your switch.
Table 7 Power cord connection methods at a glance
Chassis
Connection procedure
5120 16G SI
5120 24G SI
5120 48G SI
5120 8G PoE+ (65W) SI
5120 8G PoE+ (180W) SI
Connecting the AC power cord
5120 24G PoE+ (370W) SI
AC-input: Connecting the AC power cord
RPS input: Connecting the switch to a –52 to –55 VDC output RPS
Connecting the AC power cord
1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2. Connect one end of the AC power cord to the AC-input power receptacle on the switch.
Figure 18 uses a 5120 24G SI switch for illustration.
3. Connect the other end of the AC power cord to the AC power outlet.
Figure 18 Connecting the AC power cord to the 5120 24G SI switch
Connecting the switch to a –52 to –55 VDC output RPS
This section applies to the 5120 24G PoE+ (370W) SI switch.
To connect these switches to the RPS that provides –52 to –55 VDC output:
1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably 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 19).
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.

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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 19).
4. Connect the other end of the power cord to the RPS.
5. Make sure the RPS is supplying power and verify that the RPS status LED is ON.
Figure 19 Connecting the RPS cable to the –52 to –55 RPS receptacle
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 correctly 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 correctly
connected.
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