H3C S6850 Series User manual

H3C S6850&S9850 Switch Series
Installation Guide
New H3C Technologies Co., Ltd.
http://www.h3c.com
Document version: 5W102-20190426

Copyright © 2019, 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 S6850&S9850 Switch Series Installation Guide describes the appearance, installation,
power-on, maintenance, and troubleshooting of the H3C S6850&S9850 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 S6850&S9850 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.
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
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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 ·············································································································1
Examining the installation site·······································································································1
Temperature/humidity ··········································································································2
Cleanliness ························································································································2
EMI ··································································································································2
Laser safety ·······················································································································3
Installation tools·························································································································3
Installing the switch ··········································································4
Installing the switch in a 19-inch rack ·····························································································5
Rack-mounting procedures at a glance ····················································································5
Rack-mounting requirements ·································································································5
Installation accessories······································································································· 10
Mounting brackets, chassis rails, and grounding cable installation positions ··································· 12
Attaching the mounting brackets and chassis rails to the chassis················································· 15
Connecting the grounding cable to the chassis ········································································ 20
Attaching the slide rails to the rack ························································································ 21
Mounting the switch in the rack ···························································································· 22
Grounding the switch ················································································································ 27
Installing/removing fan trays ······································································································· 28
Installing a fan tray ············································································································ 28
Removing a fan tray··········································································································· 29
Installing/removing power modules ······························································································ 30
Installing a power module···································································································· 30
Removing a power module ·································································································· 31
Connecting the power cords ······································································································· 33
Connecting an AC power cord······························································································ 33
Connecting a DC power cord ······························································································· 34
Installing/removing expansion modules························································································· 34
Installing an expansion module ···························································································· 35
Removing an expansion module ··························································································· 36
Verifying the installation············································································································· 37
Accessing the switch for the first time ················································· 38
Setting up the configuration environment ······················································································ 38
Connecting the console cable ····································································································· 38
Connecting the mini USB console cable························································································ 39
Setting terminal parameters ······································································································· 41
Powering on the switch ············································································································· 41
Setting up an IRF fabric ···································································43
IRF fabric setup flowchart ·········································································································· 43
Planning IRF fabric setup··········································································································· 44
Planning IRF fabric size and the installation site······································································· 44
Identifying the master switch and planning IRF member IDs ······················································· 44
Planning IRF topology and connections·················································································· 45
Identifying physical IRF ports on the member switches ······························································ 46
Planning the cabling scheme ······························································································· 47
Configuring basic IRF settings ···································································································· 48
Connecting the physical IRF ports ······························································································· 48
Accessing the IRF fabric to verify the configuration ········································································· 48
Maintenance and troubleshooting ······················································50
Power module failure ················································································································ 50
Symptom ························································································································· 50
Solution··························································································································· 50

ii
Fan tray failure ························································································································ 50
Symptom ························································································································· 50
Solution··························································································································· 50
Configuration terminal display problems························································································ 51
No display························································································································ 51
Garbled display················································································································· 51
Appendix A Chassis views and technical specifications ··························52
Chassis views ························································································································· 52
S6850-56HF····················································································································· 52
S6850-2C ························································································································ 53
S9850-4C ························································································································ 55
S9850-32H ······················································································································ 56
Technical specifications············································································································· 58
Appendix B FRUs··········································································· 60
Power modules ······················································································································· 60
Fan trays································································································································ 61
Expansion modules ·················································································································· 61
Appendix C Ports and LEDs ····························································· 63
Ports ····································································································································· 63
Console port····················································································································· 63
Management Ethernet port ·································································································· 63
FE SFP modules ··············································································································· 64
USB port ························································································································· 64
SFP port·························································································································· 64
QSFP28 port ···················································································································· 65
QSFP+ port······················································································································ 68
SFP28 port ······················································································································ 69
SFP+ port ························································································································ 71
LEDs····································································································································· 71
System status LED ············································································································ 71
QSFP28 port LED ············································································································· 71
QSFP+ port LED ··············································································································· 72
SFP28 port LED················································································································ 72
SFP+ port LED ················································································································· 72
SFP port LED ··················································································································· 73
Management Ethernet port LEDs ·························································································· 73
Fan tray alarm LEDs ·········································································································· 73
Appendix D Cooling system······························································ 74

1
Preparing for installation
The H3C S6850 Switch Series includes the following models:
•S6850-56HF.
•S6850-2C.
The H3C S9850 Switch Series includes the following models:
•S9850-4C.
•S9850-32H.
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 modules 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 "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 Particle diameter Concentration limit
Dust particulate ≥5 µm
≤3 x 104particles/m3
(No visible dust on desk in three days)
Suspended dust ≤75 µm ≤0.2 mg/m3
Sedimentary dust 75 µm to 150 µm ≤1.5 mg/m3
Sand ≥150 µm ≤30 mg/m3
The equipment room must also meet 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
NO20.04
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.

3
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.

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
caused thereby.
Figure 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
Install expansion
cards?
Yes
Yes
No
No
Install expansion cards
Operating correctly?
Yes
No Resolve the
problem
End
Install power modules
Install fan trays

5
Installing the switch in a 19-inch rack
Rack-mounting procedures at a glance
Figure 2 Rack-mounting procedure
NOTE:
If a rack shelf is available, you can put the switch on the rack shelf and slide the switch to a position
so that the mounting brackets make close contact with the front rack posts. Then use screws to
secure the mounting brackets to the rack.
Rack-mounting requirements
Figure 3 S6850-56HF chassis dimensions (mounting brackets installed at the port side,
left-side view)
(1) Power module handle (2) Mounting bracket
Figure 4 S6850-56HF chassis dimensions (mounting brackets installed at the power module
side, left-side view)
(1) Power module handle (2) Mounting bracket

6
Figure 5 S6850-2C chassis dimensions (mounting brackets installed at the port side, left-side
view)
(1) Power module handle (2) Mounting bracket
Figure 6 S6850-2C chassis dimensions (mounting brackets installed at the power module
side, left-side view)
(1) Power module handle (2) Mounting bracket
Figure 7 S9850-4C chassis dimensions (mounting brackets installed at the port side, left-side
view)
(1) Power module handle (2) Mounting bracket
(3) Cable management bracket

7
Figure 8 S9850-4C chassis dimensions (mounting brackets installed at the power module
side, left-side view)
(1) Cable management bracket (2) Power module handle
(3) Mounting bracket
Figure 9 S9850-32H chassis dimensions (mounting brackets installed at the port side,
left-side view)
(1) Power module handle (2) Mounting bracket
Figure 10 S9850-32H chassis dimensions (mounting brackets installed at the power module
side, left-side view)
(1) Power module handle (2) Mounting bracket
88.1 mm
(3.47 in)
26 mm (1.02 in)
660 mm
(25.98 in)
90 mm
(3.54 in)
2
1
3

8
Table 3 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
S6850-56
HF
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)
{460 mm (18.11 in) for
the chassis
{26 mm (1.02 in) for
the power
module/fan tray
handles
692 to 853
mm (27.24 to
33.58 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.
Mounting brackets
and super-short
slide rails (optional,
chassis rails not
reaching out of the
chassis)
401 to 565
mm (15.79 to
22.24 in)
Mounting brackets
and super-short
slide rails (optional,
chassis rails
reaching out of the
chassis)
499 to 692
mm (19.65 to
27.24 in)
S6850-2C
Mounting brackets
at the port side •Height—44.2 mm (1.74
in)/1 RU
•Width—440 mm (17.32
in)
•Depth—686 mm (27.01
in)
{660 mm (25.98 in)
for the chassis
{26 mm (1.02 in) for
the power
module/fan tray
handles
519 to 768
mm (20.43 to
30.24 in)
•A minimum of
1000 mm (39.37
in) in depth
(recommended)
•A minimum of
130 mm (5.12 in)
between the front
rack post and the
front door.
•A minimum of
750 mm (29.53
in) between the
front rack post
and the rear
door.
Mounting brackets
at the power
module side

9
Switch
model Installation method Chassis dimensions
Distance
between the
front and
rear rack
posts
Rack
requirements
S9850-4C
Mounting brackets
at the port side
•Height—88.1 mm (3.47
in)/2 RU
•Width—440 mm (17.32
in)
•Depth—776 mm (33.55
in)
{660 mm (25.98 in)
for the chassis
{26 mm (1.02 in) for
the power
module/fan tray
handles
{90 mm (3.54) for the
mounting brackets
518 to 923
mm (20.39 to
36.34 in)
•A minimum of
1000 mm (39.37
in) in depth
(recommended)
•A minimum of
130 mm (5.12 in)
between the front
rack post and the
front door.
•A minimum of
750 mm (29.53
in) between the
front rack post
and the rear
door.
Mounting brackets
at the power
module side
•Height—88.1 mm (3.47
in)/2 RU
•Width—440 mm (17.32
in)
•Depth—750 mm (29.53
in)
{660 mm (25.98 in)
for the chassis
{90 mm (3.54) for the
mounting brackets
518 to 858
mm (20.39 to
33.78 in)
S9850-32
H
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)
{460 mm (18.11 in) for
the chassis
{26 mm (1.02 in) for
the power
module/fan tray
handles
621 to 853
mm (24.45 to
33.58 in)
•A minimum of
1000 mm (39.37
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.
Mounting brackets
and short slide rails
(provided)
401 to 633
mm (15.79 to
24.92 in)

10
Installation accessories
Table 4 Installation accessories
Switch
model
Mounting
brackets
(provided)
Cable
management
brackets Rack mounting rail kit Code of rack
mounting rail
kit
S6850-56H
F
1U high, one
pair. See Figure
11.
N/A
1U high, including one pair of
long slide rails and one pair of
chassis rails (provided).
See Figure 14.
2150A050
1U high, including one pair of
super-short slide rails and one
pair of chassis rails (optional).
See Figure 16.
2150A0CP
S6850-2C
1U high, one
pair. See Figure
11.
N/A
1U high, including one pair of
short slide rails and one pair of
chassis rails (provided).
See Figure 15.
2150A05D
S9850-4C
2U high, one
pair. See Figure
12.
One pair
(provided).
See Figure 12.
2U high, including one pair of
slide rails and one pair of chassis
rails (provided). See Figure 17.
2150A05N
S9850-32H
1U high, one
pair. See Figure
13.
N/A
1U high, including one pair of
long slide rails and one pair of
chassis rails (provided).
See Figure 14.
2150A050
1U high, including one pair of
short slide rails and one pair of
chassis rails (optional).
See Figure 15.
2150A05D
Figure 11 Mounting brackets provided with the S6850-56HF and S6850-2C switches

11
Figure 12 Mounting brackets provided with the S9850-4C switch
(1) Cable management bracket (2) Mounting bracket
Figure 13 Mounting brackets provided with the S9850-32H switch
Figure 14 1U long slide rail and chassis rail
(1) Chassis rail (2) Long slide rail
1 2
1 2

12
Figure 15 1U short slide rail and chassis rail
Figure 16 1U super-short slide rail and chassis rail
(1) Chassis rail (2) Super-short slide rail
Figure 17 2U slide rail and chassis rail
(1) Chassis rail (2) Slide rail
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 modules for mounting brackets.
The S6850-56HF switch provides two grounding points: primary grounding point (with a grounding
sign) and auxiliary grounding point, as shown in Figure 18. The S6850-2C switch provides two
grounding points: primary grounding point (with a grounding sign) and auxiliary grounding point, as
shown in Figure 19. The S9850-4C switch provides three grounding points: primary grounding point
(with a grounding sign), auxiliary grounding point 1, and auxiliary grounding point 2, as shown
in Figure 20. The S9850-32H switch provides two grounding points: primary grounding point (with a
grounding sign) and auxiliary grounding point, as shown in Figure 21.
Select installation positions for the mounting brackets, chassis rails, and grounding cable as
required.

13
Figure 18 Mounting brackets and grounding cable installation positions on the S6850-56HF
switch
(1) Power module-side installation position for the mounting bracket
(2) Primary grounding point (3) Auxiliary grounding point
(4) Port-side installation position for the mounting bracket
Figure 19 Mounting brackets and grounding cable installation positions on the S6850-2C
switch
(1) Power module-side installation position for the mounting bracket
(2) Primary grounding point (3) Auxiliary grounding point
(4) Port-side installation position for the mounting bracket