H3C S5170-EI Series User manual

H3C S5170-EI & S5570S-EI Switch Series
Installation Guide
New H3C Technologies Co., Ltd.
http://www.h3c.com
Document version: 6W101-20221011

Copyright © 2022, New H3C Technologies Co., Ltd. and its licensors
All rights reserved
No part of this manual may be reproduced or transmitted in any form or by any means without prior written
consent of New H3C Technologies Co., Ltd.
Trademarks
Except for the trademarks of New H3C Technologies Co., Ltd., any trademarks that may be mentioned in this
document are the property of their respective owners.
Notice
The information in this document is subject to change without notice. All contents in this document, including
statements, information, and recommendations, are believed to be accurate, but they are presented without
warranty of any kind, express or implied. H3C shall not be liable for technical or editorial errors or omissions
contained herein.
Environmental protection
This product has been designed to comply with the environmental protection requirements. The storage, use,
and disposal of this product must meet the applicable national laws and regulations.

Preface
H3C S5170-EI & S5570S-EI Switch Series Installation Guide describes the installation, power-on,
maintenance, and troubleshooting of the H3C S5170-EI & S5570S-EI switch series.
This preface includes the following topics about the documentation:
•
Audience.
•
Conventions.
•
Documentation feedback.
Audience
This documentation is intended for:
•
Network planners.
•
Field technical support and servicing engineers.
•
Network administrators working with the S5170-EI & S5570S-EI switch series.
Conventions
The following information describes the conventions used in the documentation.
Command conventions
Convention
Description
Boldface Bold text represents commands and keywords that you enter literally as shown.
Italic Italic text represents arguments that you replace with actual values.
[ ] Square brackets enclose syntax choices (keywords or arguments) that are optional.
{ x | y | ... }
Braces enclose a set of required syntax choices separated by vertical bars, from which
you select one.
[ x | y | ... ]
Square brackets enclose a set of optional syntax choices separated by vertical bars,
from which you select one or none.
{ x | y | ... } *
Asterisk marked braces enclose a set of required syntax choices separated by vertical
bars, from which you select a minimum of one.
[ x | y | ... ] *
Asterisk marked square brackets enclose optional syntaxchoices separated byvertical
bars, from which you select one choice, multiple choices, or none.
&<1-n> The argument or keyword and argument combination before the ampersand (&) sign
can be entered 1 to n times.
# A line that starts with a pound (#) sign is comments.
GUI conventions
Convention
Description
Boldface Window names, button names, field names, and menu items are in Boldface. For
example, the New User window opens; click OK.
> Multi-level menus are separated by angle brackets. For example, File > Create >
Folder.

Symbols
Convention
Description
WARNING! An alert that calls attention to important information that if not understood or followed
can result in personal injury.
CAUTION:
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.
IMPORTANT:
An alert that calls attention to essential information.
NOTE:
An alert that contains additional or supplementary information.
TIP:
An alert that provides helpful information.
Network topology icons
Convention
Description
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.
Represents an access controller, a unified wired-WLAN module, or the access
controller engine on a unified wired-WLAN switch.
Represents an access point.
Represents a wireless terminator unit.
Represents a wireless terminator.
Represents a mesh access point.
Represents omnidirectional signals.
Represents directional signals.
Represents a security product, such as a firewall, UTM, multiservice security
gateway, or load balancing device.
Represents a security module, such as a firewall, load balancing, NetStream, SSL
VPN, IPS, or ACG module.
Examples provided in this document
Examples in this document might use devices that differ from your device in hardware model,
configuration, or software version. It is normal that the port numbers, sample output, screenshots,
and other information in the examples differ from what you have on your device.
T
T
T
T

Documentation feedback
You can e-mail your comments about product documentation to [e-mail].
We appreciate your comments.

i
Contents
Preparing for installation················································································1
Safety recommendations ···································································································································2
Examining the installation environment ·············································································································2
Cleanliness·················································································································································4
Corrosive gas limit······································································································································4
Examining the installation site····························································································································5
Checking power distribution or power supply environment················································································6
Laser safety························································································································································6
Installation tools ·················································································································································7
Installation accessories······································································································································7
Installing the switch························································································1
Installing the switch in a 19-inch rack·················································································································2
Installation methods···································································································································2
Installation procedure at a glance··············································································································3
Rack-mounting the switch by using front mounting brackets·····································································3
Rack-mounting the switch by using front and rear mounting brackets·······················································6
Mounting the switch on a workbench·················································································································9
Grounding the switch ·········································································································································9
Grounding the switch by using a grounding strip·····················································································10
Grounding the switch by using a grounding conductor buried in the earth ground··································11
Verifying the connection after grounding the switch·················································································11
Installing and removing a power supply···········································································································12
Installing/removing a power supply (1)·····································································································13
Installing/removing a power supply (2)·····································································································15
Connecting the power cord······························································································································17
Connecting the power cord for a built-in power supply············································································18
Connecting the power cord for a CA-70A12 or PSR75-12A power supply··············································19
Connecting the power cord for a PSR150-D1 or PSR560-56D power supply·········································20
Connecting the power cord for a PSR180-56A, PSR360-56A, PSR720-56A, PSR1110-56A,
PSR600-54A-B, PSR920-54A-B, or PSR1600-54A-B power supply·······················································21
Verifying the installation···································································································································21
Accessing the switch for the first time····························································1
Connecting the switch to a configuration terminal······························································································1
Connecting a DB9-to-RJ45 console cable·································································································1
Connecting a USB-to-RJ45 console cable·································································································2
Setting terminal parameters·······························································································································4
Starting the switch··············································································································································4
Pre-start checklist·······································································································································4
Powering on the switch······························································································································5
Setting up an IRF fabric·················································································1
IRF fabric setup flowchart ··································································································································1
Planning IRF fabric setup···································································································································2
Planning IRF fabric size and the installation site························································································2
Identifying the master switch and planning IRF member IDs·····································································2
Planning IRF topology and connections·····································································································3
Identifying physical IRF ports on the member switches·············································································4
Planning the cabling scheme·····················································································································4
Configuring basic IRF settings···························································································································6
Connecting the physical IRF ports·····················································································································6
Verifying the IRF fabric setup·····························································································································6
Maintenance and troubleshooting··································································1
Power supply failure···········································································································································1
Built-in power supply failure·······················································································································1

ii
Removable power supply failure················································································································1
Fan tray failure···················································································································································2
Configuration terminal display issues·················································································································2
No display ··················································································································································2
Garbled display··········································································································································2

1
Preparing for installation
This document is applicable to the following Ethernet switches:
Table 1 Switch series and models
Switch series Model Product code (PID)
S5170-EI switch series
S5170-28S-EI LS-5170-28S-EI
LS-5170-28S-EI-GL
S5170-54S-EI LS-5170-54S-EI
LS-5170-54S-EI-GL
S5170-54S-EI-DP LS-5170-54S-EI-DP
S5170-28S-HPWR-EI LS-5170-28S-HPWR-EI
LS-5170-28S-HPWR-EI-GL
S5170-54S-PWR-EI LS-5170-54S-PWR-EI
LS-5170-54S-PWR-EI-GL
S5170-36F-EI LS-5170-36F-EI
S5170-36F-EI-DP LS-5170-36F-EI-DP
S5570S-EI switch series
S5570S-28S-EI LS-5570S-28S-EI
LS-5570S-28S-EI-GL
S5570S-54S-EI LS-5570S-54S-EI
LS-5570S-54S-EI-GL
S5570S-28S-HPWR-EI LS-5570S-28S-HPWR-EI
S5570S-28S-HPWR-EI-A LS-5570S-28S-HPWR-EI-A
LS-5570S-28S-HPWR-EI-A-GL
S5570S-54S-PWR-EI LS-5570S-54S-PWR-EI
S5570S-54S-PWR-EI-A LS-5570S-54S-PWR-EI-A
LS-5570S-54S-PWR-EI-A-GL
S5570S-36F-EI LS-5570S-36F-EI
LS-5570S-36F-EI-GL
S5570S-54F-EI LS-5570S-54F-EI
LS-5570S-54F-EI-GL
S5570S-30MS-UPWR-EI LS-5570S-30MS-UPWR-EI
NOTE:
•
Switches of the same model but different PIDs might differ in hardware and software features.
You can view the PID of a switch on the label located on its rear panel or top panel.
•
The available chassis models and accessories vary by country and region. This document
describes only the preceding models. For the chassis models and accessories available in your
country or region, contact the local H3C marketing personnel.

2
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, remove all power cords from the switch. 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 good ventilation of the equipment room and keep the air inlet and outlet vents of the
switch free of obstruction.
•
Make sure the power input voltage is as required by the power supply.
•
To avoid electrical shocks, do not open the chassis while the switch is operating or when the
switch is just powered off.
•
During switch installation, wear an ESD wrist strap. Make sure the strap makes good skin
contact and is reliably grounded.
Examining the installation environment
To ensure correct operation of your switch, make sure the installation environment meets the
requirements listed in Table 2.
Table 2 Checking list for the installation environment
Item Requirements
Ventilation and heat dissipation
CAUTION:
To ensure correct operation of your device, make sure the installation
environment is adequately ventilated to prevent the switch from
overheating.
•Ensure a minimum clearance of 10 cm (3.94 in) around the chassis.
•Do not install the device near a heat source, for example, a stove or
heater.
•Ensure air ventilation in the installation environment.
•Do not block the ventilation holes in the device or power adapter.
Anti-moisture
CAUTION:
Water or moisture might damage the circuits of the device.
•Do not place the device near water or in a damp environment.
•Install the switch in a clean, dry, and ventilated place where
temperature is controlled in a stable range.
•Make sure the installationenvironment is free from water leakage or
condensation. If required, install a dehumidification device (such as
an air conditioner with a dehumidification function or a dedicated
dehumidifier).
•Do not operate the device under or near the water source, such as
the wash basin, laundry room, or areas with high humidity.
•Do not touch the device with wet hands.
Temperature/humidity For correct operation and long service life of your switch, maintain the
temperature and humidity in the equipment room at acceptable ranges.

3
Item Requirements
•Lasting high relative humidity can cause poor insulation, electricity
leakage, mechanical property change of materials, and metal
corrosion.
•Lasting low relative humidity can cause washer contraction and
ESD and cause issues including loose mounting 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 of the switch, see
technical specifications in H3C S5170-EI & S5570S-EI Switch Series
Hardware Information and Specifications.
Lightning protection
CAUTION:
Ground the switch correctly and verify the grounding. For more
information, see "Grounding the switch."
•If you ground the switch by using a grounding strip, make sure the
grounding resistance of the grounding strip in the equipment room is
less than 1Ω.
•If you ground the switch by using a grounding conductor buried in
the earth ground, make sure the grounding resistance of the
grounding conductor in the ground is less than 10Ω.
•Route the signal cables along indoor walls, bury the cables in the
earth ground, or thread the cables through steel tubes. Install a
signal lightning arrester with a nominal discharge current for a
corresponding network interface.
•Keep the signal cables far from power cords and lightning rod down
conductors.
•As a best practice, route power cords indoors. If anAC power cord
is routed from outdoors, connect the AC power cord first to a power
lightning arrester before leading it to theAC power port on the
switch. Make sure the power lightning arrester has a nominal
discharge current and the total length of the power cord from the
power lighting arrester to the power port on the switch is less than 5
m (16.40 ft).
•Ground the switch, rack, independent power supplies, and lightning
arresters separately.
•You must ground optical fibers with reinforcing metal stiffener from
outdoors on an optical distribution frame (ODF) or fiber splice
enclosure.
Cable routing
CAUTION:
Do not run an Ethernet cable and power cord in parallel.
•Route different types of cables separately.
•Keep power cords a minimum of 5 cm (1.97 in) away from other
cables.
ESD prevention
•Ground the switch correctly.
•To avoid ESD damage to the device or FRUs, always wear an ESD
wrist strap when you install or remove the device or FRUs.
•Make sure the wrist strap has good skin contact and is reliably
grounded.
Cleanliness For more information, see "Cleanliness."
Corrosive gas prevention The installation site must be free from corrosive gases such as acid gases and alkaline gases. For more information, see "Corrosive gas
limit."
EMI •If AC power is used, use a single-phase three-wire power receptacle

4
Item Requirements
with protection earth (PE) to filter interference from the power grid.
•Keep the device far away from radio transmitting stations, radar
stations, and high-frequency devices.
•Use electromagnetic shielding, for example, shielded interface
cables, when necessary.
Cleanliness
Dust buildup on the chassis might cause electrostatic adsorption and dust corrosion, resulting in
poor contact of metal connectors and contact points. This might shorten the device's lifetime and
even cause device failure in the worst case. Table 3 describes the switch requirement for
cleanliness.
Table 3 Switch requirement for cleanliness
Substance Particle diameter Concentration limit
Dust particles ≥ 0.5 µm ≤ 1.8 × 107particles/m3
To maintain cleanliness in the equipment room, follow these guidelines:
•
Keep the equipment room away from pollution sources. Do not smoke, eat, or drink in the
equipment room.
•
Use double-layer glass in windows and seal doors and windows with dust-proof rubber strips.
Use screen doors and window screens for doors and windows open to the outside and make
sure the external windows are air tight.
•
Use dustproof materials for floors, walls, and ceilings and use wallpaper or matt paint that does
not produce powders.
•
Clean the equipment room regularly and clean the air filters of the rack each month.
•
Wear ESD clothing and shoe covers before entering the equipment room, keep the ESD
clothing and shoe covers clean, and change them frequently.
Corrosive gas limit
Corrosive gases can accelerate corrosion and aging of metal components. Make sure the corrosive
gases do not exceed the concentration limits as shown in Table 4.
Table 4 Corrosive gas concentration limits
Gas Average concentration (mg/m3) Maximum concentration (mg/m3)
SO20.3 1.0
H2S 0.1 0.5
Cl20.1 0.3
HCI 0.1 0.5
HF 0.01 0.03
NH31.0 3.0
O30.05 0.1
NOX0.5 1.0

5
CAUTION:
As a best practice, control the
corrosive gas concentrations in the equipment room at their
average
values
. Make sure the corrosive gas concentrations do not exceed 30 minutes per day at their
maximum values.
To control corrosive gases, use the following guidelines:
•
As a best practice, do not build the equipment room in a place with a high concentration of
corrosive gases.
•
Make sure the equipment room is not connected to sewer, vertical shaft, or septic tank pipelines
and keep it far away from these pipelines. The air inlet of the equipment room must be away
from such pollution sources.
•
Use environmentally friendly materials to decorate the equipment room. Avoid using organic
materials that contains harmful gases, such as sulfur or chlorine-containing insulation cottons,
rubber mats, sound-proof cottons, and avoid using plasterboards with high sulfur concentration.
•
Place fuel (diesel or gasoline) engines separately. Do not place them in the same equipment
room with the device. Make sure the exhausted air of the engines will not flow into the
equipment room or towards the air inlet of the air conditioners.
•
Place batteries separately. Do not place them in the same room with the device.
•
Employ a professional company to monitor and control corrosive gases in the equipment room
regularly.
Examining the installation site
Before you install the switch, verify that the installation site meets the installation requirements. The
switch can operate correctly in an A1 or A2 installation site. Availability issues might occur if you
install the switch in an A3, B1, B2, or C installation site.
Table 5 Installation sites
Category Definition Example
A1: indoor controlled
environment
•Indoor environments where
temperature and humidity are
controlled.
•Completely enclosed or shielded
indoor environments.
Central equipment rooms, IDC
equipment rooms, mobile cabins
with air conditioners, outdoor air
conditioner cabinets, and heat
exchanger cabinets.
A2: indoor partially
controlled
environment
•Indoor environments where
temperature and humidity are partially
controlled.
•Incompletely enclosed or shielded
places.
•Places far from pollution sources.
Simple equipment rooms, ordinary
houses, garages, corridors, and
direct ventilation cabinets far from
pollution sources, houses without
direct exposure to sunlight or rain,
railway station platforms, and
stadiums.
A3: indoor
uncontrolled
environment
•Indoor environments where
temperature and humidity are
uncontrolled.
•Incompletely enclosed or shielded
places.
•Places near pollution sources.
Simple equipment rooms, ordinary
houses, garages, corridors, and
direct ventilation cabinets near
pollution sources, houses without
direct exposure to sunlight or rain,
railway station platforms, stadiums,
uncleaned rooms after decoration,
and rooms under decoration.
B1: outdoor general
environment
•Unshielded places where the
temperature and humidity are not
controlled.
•Places far from pollution sources.
Completely exposed outdoor places
far from pollution sources.

6
Category Definition Example
B2: harsh
environment
•Unshielded places where the
temperature and humidity are not
controlled.
•Sea environments or outdoor land
environments near pollution sources.
Islands, ships, and completely
exposed outdoor places near
pollution sources.
C: special
environments Special application environments Buried, underwater, or undersea
environments and manholes.
Table 6 Pollution sources
Category Radius range
Saline water areas such as oceans and saline lakes ≤3.7 km (2.30 miles)
Serious pollution sources such as metallurgic plants, coal mines, and
heat and power plants ≤3 km (1.86 miles)
Medium pollution sources such as chemical factories, rubber plants,
and electroplating factories ≤2 km (1.24 miles)
Light pollution sources, such as food factories, tanneries, and
heating boilers ≤1 km (0.62 miles)
Checking power distribution or power supply
environment
Table 7 Requirements for power distribution or power supply environment
Item Requirements
Preparation The power supply must be available before you install the switch.
Voltage The voltage provided to the switch must be within the operating voltage range.
For the operating voltage range, see H3C S5170-EI & S5570S-EI Switch Series
Hardware Information and Specifications.
Power receptacle and
cables
•
If the external power supply system provides anAC power outlet, prepare a
country-specificAC power cord yourself. Make sure the PE wire of the AC
power supply is grounded reliably.
•
If the external power supply system provides a DC distribution box,prepare
DC power cords yourself.
•Do not use the power cord provided with the switch on other devices.
Laser safety
WARNING
!
The switch is Class 1 laser device.
Disconnected optical fibers or transceiver modules might emit
invisible laser light. Do not stare into beams or view directly with optical instruments when the switch
is operating.

7
Installation tools
No installation tools are provided with the switch. Prepare the following tools yourself as required:
•
ESD wrist strap
•
Flat-blade screwdriver
•
Phillips screwdriver
•
Needle-nose pliers
•
Marker
Installation accessories
Before installation, make sure you have all the required installation accessories. If an installation
accessory is damaged or lost, purchase a new one by using the BOM code in Table 8.
Table 8 Installation accessories
Code Description Quantity Applicable device models
N/A
Front mounting kit, including a
pair of front mounting brackets
and eight M4 screws
1 pair, provided All models
N/A
Rear mounting bracket kit,
including a pair of rear mounting
brackets and two shoulder
screws
1 pair, provided S5570S-28S-HPWR-EI S5570S-54S-PWR-EI
S5570S-30MS-UPWR-EI
N/A M6 screw and cage nut User supplied All models
N/A
Rubber feet
Four, provided All models
N/A
Grounding cable
1, provided All models
N/A Grounding screw 1, provided All models
N/A Power module filler panel 1, provided S5570S-28S-EI S5570S-54S-EI
S5570S-36F-EI

8
Code Description Quantity Applicable device models
S5570S-54F-EI
N/A
Power module filler panel
1, provided S5570S-28S-HPWR-EI S5570S-54S-PWR-EI
S5570S-30MS-UPWR-EI
N/A
Power module filler panel
1, provided S5570S-28S-HPWR-EI-A
S5570S-54S-PWR-EI-A
N/A
AC power cord
The appearance and
parameters for AC power cords
vary depending on countries and
regions. The AC power cord in
this table is a standard ACpower
cord in China.
1, provided for
the switch with a
built-in power
supply
1, provided with
removable
power supplies
All models
N/A
DC power cord
1, provided with
DC power
supplies S5570S-EI series
N/A
AC power cord bail latch
The appearance of the bail latch
might differ.
1, provided with
the CA-70A12
and PSR75-12A
power supplies
S5570S-28S-EI
S5570S-54S-EI
S5570S-36F-EI
S5570S-54F-EI
04042967
DB9-to-RJ45 console cable
1, optional All models
0404A1EE USB-to-RJ45 console cable 1, optional All models

9
Code Description Quantity Applicable device models
N/A Releasable cable tie
1, provided with
the
PSR180-56A,
PSR360-56A,
PSR720-56A,
PSR1110-56A,
PSR600-54A-B,
PSR920-54A-B,
and
PSR1600-54A-B
power supplies
S5570S-28S-HPWR-EI
S5570S-54S-PWR-EI
S5570S-28S-HPWR-EI-A
S5570S-54S-PWR-EI-A
S5570S-30MS-UPWR-EI

1
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 H3C for permission. Otherwise, H3C shall not be liable for any consequence.
Figure 1 Hardware installation flow
Start
Install the switch
Ground the switch
Connect thepower cords
Verify the installation
Turn on circuit breakers
Operating correctly?Turn off the
circuit breakers
Troubleshoot
Yes
No
End
Connect ports and cables
Removable power
supplies?
No
Yes
Install power supplies

2
Installing the switch in a 19-inch rack
Installation methods
Table 9 Installation methods
Applicable
switch models Installation method Requirements and guidelines Installation procedure
S5170-28S-EI
S5170-54S-EI
S5170-54S-EI-DP
S5170-28S-HPW
R-EI
S5170-54S-PWR-
EI
S5170-36F-EI
S5170-36F-EI-DP
S5570S-28S-EI
S5570S-54S-EI
S5570S-36F-EI
S5570S-54F-EI
S5570S-28S-HP
WR-EI-A
S5570S-54S-PW
R-EI-A
Using front
mounting brackets
Select an installation position for
the front mounting brackets as
required: near the power supply
side or port side. For the
S5170-28S-EI, S5170-54S-EI,
S5170-36F-EI, and
S5170-36F-EI-DP switches, the
front mounting brackets can be
installed only near the port side.
See "Rack-mounting the
switch by using front
mounting brackets."
S5570S-28S-HP
WR-EI
S5570S-54S-PW
R-EI
S5570S-30MS-U
PWR-EI
Using front and
rear mounting
brackets
•Select an installation position
for the front mounting
brackets as required: near the
power supply side or port
side.
•Install the rear mounting
brackets based on the rack
depth (distance between the
front and rear rack posts).
If the rack depth is in the
range of 429 to 595 mm
(16.89 to 23.43 in), orient
the rear mounting
brackets with the wide
flange inside the rack.
If the rack depth is in the
range of 274 to 440 mm
(10.79 to 17.32 in) and the
distance from the rear
rack posts to the inner
surface of the cabinet
door is greater than 153
mm (6.02 in), orient the
rear mounting brackets
with the wide flange
outside the rack.
•If you are to install a
PSR1110-56A power supply,
make sure the rack depth is
larger than 600 mm (23.62 in)
See "Rack-mounting the
switch by using front and
rear mounting brackets."

3
IMPORTANT:
For the rack door
s to close easily after switch installation, make sure the distance requirements
described in Table 9 are met.
Installation procedure at a glance
Figure 2 Procedure for installing the switch in a 19-inch rack by using front mounting
brackets
Figure 3 Procedure for installing the switch in a 19-inch rack by using front and rear
mounting brackets
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 by using the mounting brackets.
Rack-mounting the switch by using front mounting brackets
The installation procedures are the same for the S5170-EI series and S5570S-EI series except for
the S5570S-28S-HPWR-EI, S5570S-54S-PWR-EI, and S5570S-30MS-UPWR-EI. The following
uses the S5570S-54F-EI as an example.
Attaching the front mounting brackets to the switch
For the S5170-28S-EI, S5170-54S-EI, S5170-36F-EI, and S5170-36F-EI-DP switches, you can
install front mounting brackets only at the port side.
The switch has one mounting position near the network ports and the other mounting position near
the power supplies for the front mounting brackets. Select one position as needed.
To attach the front mounting brackets to the chassis:
1. Place the wide flange of the mounting bracket against the chassis side panel. Align the
mounting bracket installation holes with the screw holes in the chassis.
To install the mounting brackets at the port-side mounting position, see Figure 4.
To install the mounting brackets at the power supply-side mounting position, see Figure 5.
2. Fasten the M4 screws to secure the mounting bracket to the switch. As a best practice, use a
torque of 12 kgf-cm (1.18 Nm) to fasten the M4 screws.
3. Attach the front mounting bracket to the other side of the chassis in the same way.
Attach the front
mounting brackets to
the switch
Select an installation position
for the front mounting brackets
(near the port side or power supply side) Mount the switch
in the rack
Attach the front
mounting
brackets to the
switch
Attach the
shoulder
screws to the
switch
Attach the
rear mounting
brackets to
the rack
Select an installation position
for the front mounting brackets
(near the port side or power
supply side)
Mount the
switch in the
rack

4
Figure 4 Attaching the front mounting brackets to the port-side mounting position
Figure 5 Attaching the front mounting brackets to the power supply-side mounting position
Mounting the switch in the rack
This task requires two people.
To mount the switch in the rack:
1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2. Verify that the front mounting brackets have been securely attached to the switch chassis. See
"Attaching the front mounting brackets to the switch."
3. Attach cage nuts to the front rack posts.
4. One person supports the bottom of the switch, and moves the switch to an appropriate position
based on the installation positions of the front mounting brackets.
5. Another person uses user supplied M6 screws and cage nuts to attach the mounting brackets
to the rack and verifies that the brackets are level and secure. As a best practice, use a torque
of 30 kgf-cm (2.94 Nm) to fasten the M6 screws.