H3C S6826 Series User manual

H3C S6826 & S9826 Switch Series
Installation Guide
New H3C Technologies Co., Ltd.
http://www.h3c.com
Document version: 5W100-20211129

Copyright © 2021, 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 S6826 & S9826 Switch Series Installation Guide describes the appearance, installation,
power-on, maintenance, and troubleshooting of the H3C S6826 & S9826 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 S5130S-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 optionalsyntaxchoices 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.
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
1 Preparing for installation·············································································1
Safety recommendations ···································································································································1
Examining the installation site····························································································································1
Temperature/humidity································································································································2
Cleanliness·················································································································································2
EMI·····························································································································································2
Laser safety················································································································································3
Installation tools ·················································································································································3
2 Installing the switch··················································································2-4
Installing the switch in a 19-inch rack··············································································································2-5
Rack-mounting procedures at a glance ··································································································2-5
Rack-mounting requirements··················································································································2-5
Installation accessories···························································································································2-7
Mounting brackets, chassis rails, and grounding cable installation positions ·········································2-9
Attaching the mounting brackets and chassis rails to the chassis························································2-10
Connecting the grounding cable to the chassis ····················································································2-13
Attaching the slide rails to the rack ·······································································································2-14
Mounting the switch in the rack·············································································································2-14
Grounding the switch ····································································································································2-16
Installing and removing fan trays ··················································································································2-17
Installing a fan tray································································································································2-17
Removing a fan tray······························································································································2-18
Installing and removing power supplies········································································································2-18
Installing a power supply·······················································································································2-19
Removing a power supply·····················································································································2-20
Connecting the power cords ·························································································································2-21
Connecting an AC power cord··············································································································2-22
Connecting a DC power cord················································································································2-22
Verifying the installation································································································································2-23
3 Accessing the switch for the first time····················································3-24
Setting up the configuration environment ·····································································································3-24
Connecting the console cable·······················································································································3-24
Connecting the mini USB console cable·······································································································3-25
Setting terminal parameters··························································································································3-27
Powering on the switch·································································································································3-27
4 Maintenance and troubleshooting··························································4-29
Power supply failure······································································································································4-29
Symptom···············································································································································4-29
Solution·················································································································································4-29
Fan tray failure··············································································································································4-29
Symptom···············································································································································4-29
Solution·················································································································································4-29
Configuration terminal display problems·······································································································4-30
No display ·············································································································································4-30
Garbled display·····································································································································4-30

1
1 Preparing for installation
The H3C S6826 Switch Series and the H3C S9826 Switch Series include the following models:
Product series Product model Product code
S6826 series S6826-48Y8C LS-6826-48Y8C
S9826 series S9826-32C LS-9826-32C
Safety recommendations
To avoid any equipment damage or bodily injury caused by incorrect 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 field replaceable units (FRUs), including power supplies and fan trays, wear an
ESD wrist strap to avoid damaging the units.
Examining the installation site
The switch must be used indoors.
Mount your switch in a rack and verify the following items:
•
Adequate clearance is reserved at the air inlet and outlet vents for ventilation.
•
The rack 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
neighboring devices from entering the top device.
•
The rack is sturdy enough to support the switch and its accessories.
•
The rack 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.

2
Temperature/humidity
Maintain appropriate temperature and humidity in the equipment room.
•
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 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 for the switch, see S6826 & S9826 Switch Series
Hardware Information and Specifications.
Cleanliness
Dust buildup on the chassis might result in electrostatic adsorption, which causes poor contact of
metal components and contact points. In the worst case, this might shorten the device's lifetime and
even cause communication failure. Table1-1 describes the dust concentration limits in the equipment
room.
Table1-1 Dust concentration limit in the equipment room
Substance Particle diameter Concentration limit
Dust particles ≥0.5 µm ≤ 3.5 × 106particles/m3
Dust particles ≥5 µm ≤ 3 × 104particles/m3
Dust (suspension) ≤75 µm ≤0.2 mg/m3
Dust (sedimentation) 75 µm to 150 µm ≤1.5 mg/(m2h)
Corrosive gases can accelerate corrosion and aging of metal components. Make sure the corrosive
gases in the equipment room do not exceed the concentration limits as shown inTable1-2.
Table1-2 Harmful gas limits in the equipment room
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
EMI
All electromagnetic interference (EMI) sources, from outside or inside of the switch and application
system, adversely affect the switch in the following ways:

3
•
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.
Laser safety
WARNING
!
•
The switch is a Class 1M 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.
Installation tools
No installation tools are provided with the switch. Prepare the following tools yourself:
•
Phillips screwdriver.
•
ESD wrist strap.
•
Marker.

2-4
2 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
caused thereby.
Figure2-1 Hardware installation flow
Start
Install the switch
Ground the switch
Connect power
cords
Verify the
installation
Turn on the circuit
breakers
Operating
correctly?Turn off the
circuit breakers
Troubleshoot
the switch
Yes
No
End
Install power supplies
Install fan trays

2-5
Installing the switch in a 19-inch rack
Rack-mounting procedures at a glance
Figure2-2 Rack-mounting procedure
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.
Follow these guidelines when you install the switch in a 19-inch rack:
•
The distance between the front and rear posts of the rack must meet the requirements
described in Table2-2.
•
To secure the switch to the rack, you must install not only mounting brackets, but also chassis
rails and slide rails.
Rack-mounting requirements
Figure2-3 S6826-48Y8C chassis dimensions (mounting brackets installed at the port side)
(1) Power supply handle
(2) Mounting bracket
Figure2-4 S6826-48Y8C chassis dimensions (mounting brackets installed at the power
supply side)
(1) Power supply handle
(2) Mounting bracket
Attach the
mounting
brackets to
both sides of
the switch
Attach chassis rails to
both sides of the switch
Connect the grounding
cable to a grounding
point
Select the mounting
position (power supply side
or port side) for the
mounting brackets
Install the
switch in the
rack
Attach slide
rails to the
rack
43.6 mm
(1.72 in)
460 mm
(18.11 in)
26 mm
(1.02 in)
12
43.6 mm
(1.72 in)
460 mm
(18.11 in)
26 mm
(1.02 in)
12

2-6
Figure2-5 S9826-32C chassis dimensions (mounting brackets installed at the port side)
(1) Power supply handle
(2) Mounting bracket
Figure2-6 S9826-32C chassis dimensions (mounting brackets installed at the power supply
side)
(1) Power supply handle (2) Mounting bracket
Table2-2 Distance requirements between the front and rear rack posts
Switch
model Installation method Chassis dimensions
Distance
between the
front and rear
rack posts
Rack
requirements
S6826-48Y
8C
Using the mounting
brackets and long
slide rails (provided)
•Height—43.6
mm (1.72 in)/1
RU
•Width—440 mm
(17.32 in)
•Depth—486 mm
(19.13 in)
26 mm (1.02
in) for the
power
supply/fan
tray handles
460 mm
(18.11 in) for
the chassis
692 to 854 mm
(27.24 to 33.62 in) •A minimum of
800 mm (31.50
in) in depth
(recommended)
•A minimum of
130 mm (5.12 in)
between the front
rack post and the
front door.
•A minimum of
550 mm (21.65
in) between the
front rack post
and the rear
door.
Using the mounting
brackets and
super-short slide rails
(optional, with the
chassis rails not
reaching out of the
chassis)
401 to 565 mm
(15.79 to 22.24 in)
Using the mounting
brackets and
super-short slide rails
(optional, with
chassis rails reaching
out of the chassis)
499 to 692 mm
(19.65 to 27.24 in)
S9826-32
C
Using the mounting
brackets and long
slide rails (provided)
•Height—43.6
mm (1.72 in)/1
RU
•Width—440 mm
(17.32 in)
•Depth—566 mm
(22.28 in)

26 mm (1.02
621 to 934 mm
(24.45 to 36.77 in)
•A minimum of
800 mm (31.50
in) in depth
(recommended)
•A minimum of
130 mm (5.12 in)
between the front
rack post and the
Using the mounting
brackets and short
slide rails (optional)
401 to 714 mm
(15.79 to 28.11 in)

2-7
Switch
model Installation method Chassis dimensions
Distance
between the
front and rear
rack posts
Rack
requirements
in) for the
power
supply/fan
tray handles
540 mm
(21.26 in) for
the chassis
front door.
•A minimum of
630 mm (24.80
in) between the
front rack post
and the rear
door.
Installation accessories
Table2-3 Installation accessories
Switch
model Mounting brackets (provided)
Cable
management
brackets Rack mounting rail kit
S6826-48Y8
C 1U high, one pair. See Figure2-7. N/A
•1U high, including one pair oflong slide
rails and one pair of chassis rails
(provided). See Figure2-9.
•1U high, including one pair of
super-short slide rails and one pair of
chassis rails (optional). See
Figure2-11.
S9826-32C 1U high, one pair. See
Figure2-8.N/A
•1U high, including one pair of long slide
rails and one pair of chassis rails
(provided). See Figure2-9.
•1U high, including one pair of short
slide rails and one pair of chassis rails
(optional). See Figure2-10.
Figure2-7 Mounting brackets provided with the S6826-48Y8C switch

2-8
Figure2-8 Mounting brackets provided with the S9826-32C switch
Figure2-9 1U long slide rail and chassis rail
(1) Chassis rail
(2) Long slide rail
Figure2-10 1U short slide rail and chassis rail
(1) Chassis rail
(2) Short slide rail
Figure2-11 1U super-short slide rail and chassis rail
(1) Chassis rail
(2) Super-short slide rail
12
12
12

2-9
Mounting brackets, chassis rails, and grounding cable
installation positions
The switch has one mounting position near the network ports and one mounting position near the
power supplies for mounting brackets.
The switch provides two grounding points: primary grounding point (with a grounding sign) and
auxiliary grounding point.. See Figure2-12 and Figure2-13.
Select installation positions for the mounting brackets, chassis rails, and grounding cable as
required.
Figure2-12 Mounting brackets and grounding cable installation positions on the
S6826-48Y8C switch
(1) Power supply-side mounting position
(2) Primary grounding point
(3) Auxiliary grounding point
(4) Port-side mounting position
Figure2-13 Mounting brackets and grounding cable installation positions on the S9826-32C
switch
(1) Power supply-side mounting position
(2) Primary grounding point
(3) Auxiliary grounding point
(4) Port-side mounting position
1 2 3 4
12 34

2-10
Attaching the mounting brackets and chassis rails 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. Use M4 screws
(provided) to attach the mounting bracket to the chassis.
To install the mounting brackets at the port-side mounting position, see Figure2-14,
Figure2-15, Figure2-16,and Figure2-20.
To install the mounting brackets at the power supply-side mounting position, see Figure2-17,
Figure2-18,Figure2-19,and Figure2-21.
For the S6826-48Y8C switch, to install the mounting brackets at the power supply-side
mounting position, use the four screw holes nearest to the power supply side. To install the
mounting brackets at the network port-side mounting position, use the four screw holes nearest
to the network port side.
2. Determine the chassis rail installation position:
If the mounting brackets are installed at the power supply-side mounting position, install the
chassis rails near the port side.
If the mounting brackets are installed at the network port-side mounting position, install the
chassis rails near the power supply side.
3. Place the chassis rail against the chassis side panel. Align the chassis rail installation holes with
the screw holes. Use the provided M4 screws (recommended torque: 12 kgf-cm) to attach the
chassis rail to the chassis. See Figure2-14 to Figure2-21.
You can use super-short slide rails and long chassis rails to rack-mount the S6826-48Y8C
switch. Based on the rack depth, install the long chassis rails not reaching out of the chassis, as
shown in Figure2-15 and Figure2-18 or reaching out of the chassis, as shown in Figure2-16 and
Figure2-19.
Figure2-14 Attaching the mounting brackets and short chassis rails to the S6826-48Y8C
switch (port-side mounting position for the mounting brackets)

2-11
Figure2-15 Attaching the mounting brackets and long chassis rails to the S6826-48Y8C
switch (port-side mounting position for the mounting brackets, chassis rails not reaching
out of the chassis)
Figure2-16 Attaching the mounting brackets and long chassis rails to the S6826-48Y8C
switch (port-side mounting position for the mounting brackets, chassis rails reaching out of
the chassis)
Figure2-17 Attaching the mounting brackets and short chassis rails to the S6826-48Y8C
switch (power supply-side mounting position for the mounting brackets)

2-12
Figure2-18 Attaching the mounting brackets and long chassis rails to the S6826-48Y8C
switch (power supply-side mounting position for the mounting brackets, chassis rails not
reaching out of the chassis)
Figure2-19 Attaching the mounting brackets and long chassis rails to the S6826-48Y8C
switch (power supply-side mounting position for the mounting brackets, chassis rails
reaching out of the chassis)
Figure2-20 Attaching the mounting brackets and chassis rails to the S9826-32C switch
(port-side mounting position for the mounting brackets)

2-13
Figure2-21 Attaching the mounting brackets and chassis rails to the S9826-32C switch
(power supply-side mounting position for the mounting brackets)
NOTE:
Secure the mounting brackets and chassis rails to both sides of the chassis in the same way.
Connecting the grounding cable to the chassis
CAUTION:
The primary
grounding point and auxiliary grounding point are located on the left panel of the
chassis.
You must connect the grounding cable to the grounding point before you mount
the switch
in the rack.
This section uses the primary grounding point on the S9826-32C switch as an example.
To connect the grounding cable to a grounding point:
1. Choose a grounding point as required.
This example uses the primary grounding point.
2. Unpack the grounding cable and grounding screws.
3. Use two grounding screws to attach the two-hole grounding lug of the grounding cable to the
grounding holes at the grounding point. Use a screwdriver to tighten the screws (recommended
torque: 20 kgf-cm). See Figure2-22.
Figure2-22 Attaching the grounding cable to the primary grounding point on the S9826-32C
switch

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Attaching the slide rails to the rack
1. Identify the slide rail installation position in the rack.
2. Install cage nuts (user-supplied) in the mounting holes in the rack posts.
3. Align the screw holes in one slide rail with the cage nuts in a rear rack post, and use
user-supplied M6 screws to attach the slide rail to the post (recommended torque: 30 kgf-cm).
See Figure2-23.
4. Repeat the preceding steps to attach the other slide rail to the other rear rack post.
Keep the two slide rails at the same height so the slide rails can attach into the chassis rails.
Figure2-23 Installing the slide rails
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 mounting brackets and chassis rails have been securely attached to the switch
chassis.
3. Verify that the slide rails have been correctly attached to the rear rack posts.
4. Attach cage nuts (user-supplied) to the front rack posts and make sure they are at the same
level as the slide rails.
5. One person performs the following operations:
a. Supporting the bottom of the switch, aligns the chassis rails with the slide rails on the rack
posts.
b. Pushes the switch slowly to slide the chassis rails along the slide rails until the mounting
brackets are flush with the rack posts.
6. Another person uses user-supplied M6 screws (recommended torque: 30 kgf-cm) to attach the
mounting brackets to the rack.