H3C S6520XE-HI Series User manual

H3C S6520XE-HI Switch Series
Installation Guide
New H3C Technologies Co., Ltd.
http://www.h3c.com
Document version: 6W103-20200220

Copyright © 2017-2020, 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. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute the warranty of any kind, express or implied.
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 S6520XE-HI Switch Series Installation Guide describes the appearance, installation, power-on,
maintenance, and troubleshooting of the H3C S6520XE-HI 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 S6520XE-HI 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 syntax choices separated by vertical
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.
Wireless terminator unit.
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
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Documentation feedback
You can e-mail your comments about product documentation to [e-mail].
We appreciate your comments.

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Contents
Preparing for installation ····································································1
Safety recommendations ·············································································································1
Examining the installation site·······································································································1
Temperature/humidity ··········································································································1
Cleanliness ························································································································2
EMI ··································································································································2
Laser safety ·······················································································································3
Installation tools·························································································································3
Installing the switch ··········································································4
Installing the switch in a 19-inch rack ·····························································································5
Installation requirements ·······································································································5
Installation accessories·········································································································5
Rack-mounting by using the front and rear mounting brackets ······················································6
Mounting the switch on a workbench······························································································9
Grounding the switch ··················································································································9
Grounding the switch with a grounding strip ············································································ 10
Grounding the switch with a grounding conductor buried in the earth ground·································· 11
Installing/removing a fan tray ······································································································ 12
Installing a fan tray ············································································································ 12
Removing a fan tray··········································································································· 13
Installing/removing a power module ····························································································· 14
Installing a power module···································································································· 14
Removing a power module ·································································································· 15
Connecting the power cord ········································································································ 15
Installing/removing an expansion card ·························································································· 16
Installing an expansion card ································································································ 17
Removing an expansion card······························································································· 18
Verifying the installation············································································································· 18
Accessing the switch for the first time ················································· 19
Setting up the configuration environment ······················································································ 19
Connecting the serial console cable ····························································································· 19
Connecting the micro USB console cable······················································································ 20
Setting terminal parameters ······································································································· 22
Powering on the switch ············································································································· 22
Setting up an IRF fabric ···································································24
IRF fabric setup flowchart ·········································································································· 24
Planning IRF fabric setup··········································································································· 25
Planning IRF fabric size and the installation site······································································· 25
Identifying the master switch and planning IRF member IDs ······················································· 25
Planning IRF topology and connections·················································································· 26
Identifying physical IRF ports on the member switches ······························································ 27
Planning the cabling scheme ······························································································· 27
Configuring basic IRF settings ···································································································· 29
Connecting the physical IRF ports ······························································································· 29
Verifying the IRF fabric setup······································································································ 29
Maintenance and troubleshooting ······················································30
Power module failure ················································································································ 30
Fan failure ······························································································································ 30
Configuration terminal problems·································································································· 30
No terminal display ············································································································ 30
Garbled terminal display ····································································································· 31

ii
Appendix A Chassis views and technical specifications ··························32
Chassis views ························································································································· 32
S6520XE-54QC-HI ············································································································ 32
Technical specifications············································································································· 33
Appendix B FRUs and compatibility matrixes ······································· 34
Power modules ······················································································································· 34
Fan trays································································································································ 34
Expansion cards ······················································································································ 34
Appendix C Ports and LEDs ····························································· 37
Fixed ports ····························································································································· 37
Console port····················································································································· 37
Management Ethernet port ·································································································· 37
USB port ························································································································· 37
1/10GBase-T autosensing Ethernet port················································································· 38
SFP+ port ························································································································ 38
QSFP+ port······················································································································ 41
LEDs····································································································································· 42
System status LED ············································································································ 42
Power module status LED ··································································································· 43
MODE LED ······················································································································ 43
QSFP+ port LED ··············································································································· 44
SFP+ port LED ················································································································· 44
Management Ethernet port LEDs ·························································································· 44
Expansion card status LED ································································································· 45
Port status LED on the expansion card ·················································································· 45
Input status LED and output status LED on the power module ···················································· 45
Fan tray status LED on the fan tray ······················································································· 45
Appendix D Cooling system······························································ 46

1
Preparing for installation
The H3C S6520XE-HI Switch Series includes only the S6520XE-54QC-HI switch model.
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.
•Connect the yellow-green protection grounding cable before power-on.
•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, including expansion cards, power modules, and fan trays, wear an ESD
wrist strap to avoid damaging the units.
Examining the installation site
The S6520XE-HI switches must be used indoors.
You can mount your switch in a rack or on a workbench. Before installation, verify the following items:
•Adequate clearance is reserved at the air inlet and outlet vents for ventilation.
•The rack or workbench has a good ventilation system.
•Identify the hot aisle and cold aisle at the installation site, and make sure ambient air flows into
the switch from the cold aisle and exhausts to the hot aisle.
•Identify the airflow designs of neighboring devices, and prevent hot air flowing out of the bottom
device from entering the top device.
•The rack is sturdy enough to support the switch and its accessories.
•The rack or workbench is reliably grounded.
To ensure correct 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 temperature and humidity in the equipment room as described in "Appendix A Chassis
views and technical specifications."
•Lasting high relative humidity can cause poor insulation, electricity leakage, mechanical
property change of materials, and metal corrosion.

2
•Lasting low relative humidity can cause washer contraction and ESD and cause problems
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, see "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 1 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 2.
Table 2 Harmful gas limits in the equipment room
Gas Maximum concentration (mg/m3)
SO20.2
H2S 0.006
NH30.05
Cl20.01
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, use the following guidelines:
•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.
•To prevent signal ports from getting damaged by overvoltage or overcurrent caused by lightning
strikes, route interface cables only indoors.

3
Laser safety
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.
The S6520XE-HI switch is a Class 1 laser device.
Installation tools
No installation tools are provided with the switch. Prepare the following tools yourself:
•Flat-blade screwdriver
•Phillips screwdriver
•ESD wrist strap

4
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

5
Installing the switch in a 19-inch rack
Installation requirements
Table 3 Installation requirements for the S6520XE-HI switches
Installation
method Installation requirements Installation procedure
Using the front
and rear
mounting
brackets
•Install the front mounting brackets at the power module
side or port side.
•Install the rear mounting brackets as required by the rack
depth:
{If the rack depth is in the range of 328 to 494 mm
(12.91 to 19.45 in), orient the bracket arm forward.
{If the rack depth is in the range of 172 to 338 mm (6.77
to 13.31 in) and the distance from the rear rack posts to
the inner surface of the cabinet door is longer than 153
mm (6.02 in), orient the bracket arm backward.
See "Rack-mounting by
using the front and rear
mounting brackets."
Figure 2 Rack-mounting procedure by using the 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.
Installation accessories
The switch is provided with front mounting brackets with M4 screws (see Figure 3), rear mounting
brackets with shoulder screws (see Figure 4), and a grounding cable.
Figure 3 Front mounting bracket
(1) Hole for attaching the bracket to the switch (2) Hole for attaching the bracket to a rack post
(3) M4 screw
1
2
3

6
Figure 4 Rear mounting bracket and shoulder screw
(1) Hole for attaching the bracket to a rack post (2) Shoulder screw
Rack-mounting by using the front and rear mounting brackets
You can install the front mounting brackets at the port-side or power-side mounting position as
needed. The following takes power-side mounting as an example. The port-side mounting is similar.
This task requires two people.
To install the switch in a 19-inch rack by using the front and rear mounting brackets:
1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2. Attach the front mounting brackets and shoulder screws to the chassis:
a. Align the round holes in the wide flange of one front mounting bracket with the screw holes
in the power-side mounting position on one side of the chassis.
b. Use M4 screws to attach the mounting bracket to the chassis.
c. Repeat the proceeding two steps to attach the other mounting bracket to the chassis.
d. Unpack the shoulder screws (provided). Attach the shoulder screw to one of the two
installation positions as red-marked in Figure 5.
e. Repeat the proceeding step to attach the other shoulder screw to the chassis.
Figure 5 Attaching the front mounting brackets and shoulder screws to the chassis

7
3. Attach the rear mounting brackets to the rack:
Orient the brackets with the wide flange inside or outside the rack as required.
a. Install cage nuts (user-supplied) in the mounting holes in the rear rack posts.
Make sure the corresponding cage nuts on the left and right rear rack posts are at the same
height.
b. Attach the rear mounting brackets to the rear posts with M6 screws (user-supplied).
Do not fully tighten the M6 screws before mounting the switch in the rack.
Figure 6 Attaching the rear mounting brackets to the rack with the wide flange inside the
rack
Figure 7 Attaching the rear mounting brackets to the rack with the wide flange outside
the rack

8
4. Mount the switch chassis in the rack:
a. Install cage nuts (user-supplied) on the front rack posts.
Make sure the corresponding cage nuts on the left and right front rack posts are at the same
height.
b. 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 the shoulder screws closely contact with the upper edges of the rear mounting
brackets, as shown in Figure 8 and Figure 9.
c. The other person attaches the front mounting brackets with M6 screws (user-supplied) to
the front rack posts.
Make sure the front and rear mounting brackets have securely attached the switch to the
rack.
Figure 8 Mounting the switch in the rack (with the wide flange of the rear mounting
brackets inside the rack)

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Figure 9 Mounting the switch in the rack (with the wide flange of the rear mounting
brackets outside the rack)
Mounting the switch on a 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.
To mount the switch on a workbench:
1. Verify that the workbench is sturdy and correctly 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.
Grounding the switch
WARNING!
Correctly connecting the switch grounding cable is crucial to lightning protection and EMI protection.
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
•Grounding the switch with a grounding conductor buried in the earth ground

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NOTE:
•The power and grounding terminals in this section are for illustration only.
•To guarantee the grounding effect, use the grounding cable provided with the switch to connect
to the grounding strip in the equipment room.
Grounding the switch with a grounding strip
WARNING!
Connect the grounding cable to the grounding system in the equipment room. Do not connect it to a
fire main or lightning rod.
If a grounding strip is available at the installation site, connect the grounding cable to the grounding
strip.
Connecting the grounding cable to the chassis
1. Remove the grounding screw from the rear panel of the chassis.
2. Use the grounding screw to attach the ring terminal of the grounding cable to the grounding
screw hole. Fasten the screw.
IMPORTANT:
Orient the grounding cable as shown in Figure 10 so you can easily install or remove the
expansion card.
Figure 10 Connecting the grounding cable to the chassis
(1) Grounding cable (2) Grounding screw
(3) Ring terminal (4) Grounding sign
(5) Grounding hole
Connecting the grounding cable to a grounding strip
1. Remove the hex nut of a grounding post on the grounding strip.
2. Cut the grounding cable to a length required for connecting to the grounding strip.
3. Attach a ring terminal to the grounding cable:
a. Use a wire stripper to strip 5 mm (0.20 in) of insulation off the end of the grounding cable.
b. Slide the heat-shrink tubing onto the cable and insert the bare metal part into the end of the
ring terminal.
c. Use a crimper to secure the metal part of the cable to the ring terminal.
d. Slide the heat-shrink tubing down the cable until the tube covers the joint.
e. Use a blow dryer to shrink the tubing around the cable.

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Figure 11 Attaching a ring terminal to the grounding cable
4. Connect the ring terminal to the grounding post of the grounding strip, and fasten it with the
removed hex nut.
Figure 12 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, 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 a minimum of 50 × 50 × 5 mm (1.97 × 1.97 × 0.20 in). The
steel tube must be zinc-coated and its wall thickness must be a minimum of 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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4 3
2

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Figure 13 Grounding the switch by burying the grounding conductor into the earth ground
(1) Grounding screw (2) Chassis rear panel (3) Grounding cable
(4) Earth (5) Joint (6) Grounding conductor
Installing/removing a fan tray
CAUTION:
•Install two fan trays of the same model on the switch. Do not power on the switch when it does
not have fan trays or has only one fan tray installed.
•If both fan trays fail during operation, replace them within 2 minutes while the switch is operating.
•If one fan tray fails and the ambient temperature is not higher than 27°C (80.6°F), replace the fan
tray within 24 hours. If one fan tray fails and the ambient temperature is higher than 27°C
(80.6°F), replace the fan tray immediately. Make sure the failed fan tray is in position before the
replacement.
The switch comes with empty fan tray slots. Choose the fan tray models based on the ventilation
requirement of the site. The air flow direction varies by fan tray model.
•The LSWM1FANSCE has a blue handle and provides power-to-port air flow.
•The LSWM1FANSCBE has a red handle and provides port-to-power air flow.
For more information about the fan trays, see "Appendix B FRUs and compatibility matrixes."
Installing a fan tray
CAUTION:
To prevent damage to the fan tray or the component connectors of the switch, insert the fan tray
gently. If you encounter any hard resistance while inserting the fan tray, pull out the fan tray and
insert it again.
To install a fan tray:
1. Wear an ESD wrist strap and make sure it makes good skin contact and is correctly grounded.
2. Unpack the fan tray and verify that the fan tray model is correct.
3. Grasp the two handles of the fan tray with the side marked TOP facing up, and slide the fan tray
into the slot until it fully seats in the slot and has a firm contact with the backplane.

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Figure 14 Installing a fan tray
IMPORTANT:
•At the first login to the switch, use the fan prefer-direction command to set the airflow direction
of the switch to be the same as the airflow direction of the fan tray. If the fan tray has a different
airflow direction than the switch, the system outputs traps and logs to notify you to replace the fan
tray.
•By default, the switch uses the same airflow direction (power-to-port) as the LSWM1FANSCE fan
tray.
Removing a fan tray
WARNING!
•Do not touch conductors or terminals on the fan trays.
•Do not place the fan tray in moist place. Prevent liquid from entering the fan tray.
•Fan trays with faulty internal wiring and conductors require maintenance from maintenance
engineers. Do not disassemble the faulty fan trays.
To remove a fan tray:
1. Wear an ESD wrist strap and make sure it makes good skin contact and is correctly grounded.
2. Grasp the two handles of the fan tray, as shown by callout 1 in Figure 15, and pull the fan tray
slowly out of the slot.
3. Put the removed fan tray in an antistatic bag.
Figure 15 Removing a fan tray
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2
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