H3C S12508-AC, S12508-DC, S12518-AC, S12518-DC Installation Manual

H3C S12500 Routing Switch Series
Installation Guide
Document version: 6W170-20111114
Copyright © 2008-2011, Hangzhou 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 Hangzhou H3C Technologies Co., Ltd.
Trademarks
H3C,
, Aolynk, , H3Care,
, TOP G, , IRF, NetPilot, Neocean, NeoVTL,
SecPro, SecPoint, SecEngine, SecPath, Comware, Secware, Storware, NQA, VVG, V
2
G, VnG, PSPT, XGbus, N-Bus, TiGem, InnoVision and HUASAN are trademarks of Hangzhou H3C Technologies Co., Ltd.
All other trademarks that may be mentioned in this manual 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
The H3C S12500 Routing Switch Series Installation Guide describes how to install the H3C S12500 switches.
This preface includes:
Audience
Conventions
About the H3C S12500 documentation set
Obtaining documentation
Technical support
Documentation feedback
Audience
This documentation is intended for:
Network planners
Field technical support and servicing engineers
Network administrators working with the S12500 switches
Conventions
This section describes the conventions used in this documentation set.
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 at least 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 appears; 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
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.
Port numbering in examples
The port numbers in this document are for illustration only and might be unavailable on your device.
About the H3C S12500 documentation set
The H3C S12500 documentation set includes:
Category Documents Purposes
Marketing brochures Describe product specifications and benefits.
Technology white papers
Provide an in-depth description of software features and technologies.
Product description and specifications
Card datasheets
Describe card specifications, features, and standards.
Category Documents Purposes
Regulatory compliance and safety information
Provides regulatory information and the safety instructions that must be followed during installation.
Installation guide
Provides a complete guide to hardware installation and hardware specifications.
H3C N68 Cabinet Installation and Remodel
Introduction
Guides you through installing and remodeling H3C N68 cabinets.
H3C Pluggable SFP [SFP+][XFP] Transceiver Modules Installation Guide
Guides you through installing SFP/SFP+/XFP transceiver modules.
Adjustable Slider Rail Installation Guide
Guides you through installing adjustable slider rails to a rack.
Hardware specifications and installation
H3C High-End Network Products Hot-Swappable Module Manual
Describes the hot-swappable modules available for the H3C high-end network products, their external views, and specifications.
Configuration guides
Describe software features and configuration procedures.
Command references
Provide a quick reference to all available commands.
Software configuration
Configuration examples
Describe typical network scenarios and provide configuration examples and instructions.
System log messages Explains the system log messages.
Trap messages Explains the trap messages.
MIB Companion Describes the MIBs for the software release.
Operations and maintenance
Release notes
Provide information about the product release, including the version history, hardware and software compatibility matrix, version upgrade information, technical support information, and software upgrading.
Obtaining documentation
You can access the most up-to-date H3C product documentation on the World Wide Web at
http://www.h3c.com
.
Click the links on the top navigation bar to obtain different categories of product documentation:
[Technical Support & Documents > Technical Documents]
– Provides hardware installation, software
upgrading, and software feature configuration and maintenance documentation.
[Products & Solutions]
– Provides information about products and technologies, as well as solutions.
[Technical Support & Documents > Software Download]
– Provides the documentation released with the
software version.
Technical support
customer_service@h3c.com
http://www.h3c.com
Documentation feedback
You can e-mail your comments about product documentation to info@h3c.com.
We appreciate your comments.
i
Contents
Product overview··························································································································································1
Physical architecture ·························································································································································1 Backplane ··········································································································································································7 Fan tray ··············································································································································································7 Power supply system······················································································································································ 11
AC power supply ·················································································································································· 11 DC power supply··················································································································································· 14
Preparing for installation ···········································································································································17
Safety recommendations ··············································································································································· 17
General safety recommendations························································································································ 17 Electricity safety ····················································································································································· 17 ESD prevention ······················································································································································ 17 Switch moving ·······················································································································································18 Laser safety····························································································································································· 18
Examining the installation site ······································································································································ 19
Weight support······················································································································································ 19 Temperature ··························································································································································· 19 Humidity ································································································································································· 19 Cleanness······························································································································································· 20 EMI·········································································································································································· 20 Grounding······························································································································································ 20 Power supply·························································································································································· 21
Space······································································································································································ 21 Rack-mounting ································································································································································21 Installation tools······························································································································································ 23
Installing the switch····················································································································································24
Check before installation··············································································································································· 24 Installing the switch in a rack········································································································································ 25
Installation preparation········································································································································· 25
Installing slide rails and cage nuts to the rack ··································································································· 25
Installing the mounting brackets··························································································································· 27
Installing an air deflector (optional) ····················································································································28
Installing a chassis air filter (optional)················································································································· 29
Mounting the switch in the rack··························································································································· 31
Verifying the installation ······································································································································· 32 Installing the switch on a workbench··························································································································· 32
Installation preparation········································································································································· 32
Installation procedures·········································································································································· 32 Grounding the switch ····················································································································································34 Installing the power system ··········································································································································· 35
Installation preparation········································································································································· 35
Installing a DC power module ····························································································································· 35
Installing an AC power module ··························································································································· 36 Installing a fan tray ························································································································································ 37 Installing a card······························································································································································ 38
Installation preparation········································································································································· 39
Installation procedure············································································································································ 39 Connecting power cords··············································································································································· 41
ii
Prerequisites ··························································································································································· 41
Connecting an AC power cord ··························································································································· 41
Connecting a DC power cord······························································································································ 42 Verifying the installation················································································································································ 44
Connecting the switch to the network·······················································································································45
Logging in to the switch················································································································································· 45
Connecting the console cable······························································································································ 45
Setting up a configuration environment ·············································································································· 46 Powering on the switch·················································································································································· 49
Verification before power-on ·······························································································································49
Powering on the switch········································································································································· 49
Verification after power-on··································································································································· 51 Connecting the switch to the network ·························································································································· 52
Connecting the switch to the network through the AUX port············································································ 52
Connecting the switch to the network through a copper Ethernet port ··························································· 52
Connecting the switch to the network through a fiber Ethernet port································································ 53 Cable routing recommendations ··································································································································56
Hardware management·············································································································································57
Displaying the electrical label information of your switch························································································· 57 Displaying the card information of your switch ·········································································································· 58 Rebooting your switch ··················································································································································· 59 Managing the power supply system ···························································································································· 60
Displaying the electrical label information of the power monitoring module················································· 60
Enabling power supply management·················································································································· 61
Configuring the number of redundant power modules ····················································································· 61
Manually starting or stopping power supply to a card····················································································· 62
Allocating IDs for AC power modules················································································································· 63
Displaying the power supply system information of your switch ····································································· 64 Configuring temperature alarm thresholds for a card································································································ 70
Configuring temperature alarm thresholds for a card······················································································· 70
Displaying the temperature information of your switch····················································································· 70 Isolating a card and locating card faults····················································································································· 71 Configuring in-service hardware failure diagnosis and failure protection ······························································73 Displaying the operating state of fans ························································································································· 75 Displaying the alarming information of a card··········································································································· 76 Displaying transceiver information and alarming information·················································································· 77
Introduction to transceivers··································································································································· 77
Displaying transceiver information ······················································································································ 77
Displaying the alarming information or fault detection parameters of a transceiver····································· 79
Troubleshooting··························································································································································82
Configuration terminal problems·································································································································· 82
No terminal display ·············································································································································· 82
Garbled terminal display······································································································································ 82 Power supply system failure·········································································································································· 83
Power monitoring module····································································································································· 83
Power modules ······················································································································································83 Fan failure······································································································································································· 85 MPU failure····································································································································································· 85 LPU failure······································································································································································· 86
Switching fabric module failure ··························································································································· 86 Interface failure······························································································································································· 87 Technical support ··························································································································································· 88
iii
Replacement procedures ···········································································································································89
Removing, cleaning, and installing the air filters········································································································ 89
Removing, cleaning, and installing the chassis air filters for an S12508 ······················································89
Removing, cleaning, and installing the chassis air filter for an S12518 ························································ 90
Removing, cleaning, and installing a power module air filter ·········································································91 Replacing a power module··········································································································································· 91
Preparing for the replacement ·····························································································································91
Replacing a power module ·································································································································· 92
Replacing a PEM (applicable to only an AC power module) ·········································································· 93 Replacing a card···························································································································································· 94
Preparing for the replacement ·····························································································································94
Replacement procedure········································································································································ 95 Replacing a fan tray ······················································································································································ 96
Preparing for the replacement ·····························································································································96
Replacement procedure········································································································································ 97 Replacing a CF card······················································································································································ 97 Replacing a transceiver module ···································································································································99
Regulatory Compliance and Safety Information··································································································· 101
Regulatory Compliance Information···························································································································101
Regulatory Compliance Standards····················································································································101
European Directives Compliance·······················································································································102
USA Regulatory Compliance ·····························································································································102
Canada Regulatory Compliance ·······················································································································103
Japan Regulatory Compliance···························································································································103
CISPR 22 Compliance ········································································································································103 Safety Information Sicherheits informationen安全信息 ····························································································103
Overview Überblick 概述 ···································································································································103
Electricity Safety Elektrische Sicherheit 用电安全 ····························································································107
Lithium Battery Lithiumbatterie 锂电池···············································································································109
Fuse Sicherung保险丝·········································································································································110
Laser Laser激光辐射············································································································································110
Appendix A Technical specifications····················································································································· 111
Environment requirements ···········································································································································111 Power consumption/weight/dimensions ···················································································································111
Switches································································································································································111
Cards ····································································································································································112
Fan trays·······························································································································································113
Power components ··············································································································································113 Switch ordering guide ·················································································································································114 Card ordering guide····················································································································································114
MPUs·····································································································································································116
Switching fabric modules ···································································································································117
Ethernet interface card specifications················································································································117
OAA cards···························································································································································118 Power components ordering guide ····························································································································119
Appendix B LEDs····················································································································································· 124
Power system LEDs ·······················································································································································124
Monitoring module LEDs·····································································································································124
Power module LEDs·············································································································································124 Fan LEDs········································································································································································125 MPU LEDs······································································································································································125
CF card status LED···············································································································································126
iv
Network management port LEDs ·······················································································································126
Switching fabric module LED ·····························································································································126
LPU status LED ······················································································································································126
Fan status LED ······················································································································································127
Power status LED··················································································································································127
MPU LEDs ·····························································································································································127 Line card LEDs ······························································································································································127
Interface LEDs·······················································································································································128
RUN LED·······························································································································································129 Switching fabric module LEDs·····································································································································129
Appendix C Transceiver modules·························································································································· 130
10-GE XFP transceiver modules··································································································································130 10-GE SFP+ transceiver modules ·······························································································································130 10-GE SFP+ cables ······················································································································································131 100/1000 Mbps SFP transceiver modules···············································································································131
Appendix D Lightning protection··························································································································· 133
Connecting the AC power supply to a power strip with lightning protection ·······················································133 Installing a lightning protector for a network port ····································································································134
Appendix E Cable management···························································································································· 136
Prerequisites··································································································································································136 Cable management guidelines···································································································································136
Appendix F Engineering labels for cables············································································································ 139
Introduction to labels ···················································································································································139
Material································································································································································139
Type and shape···················································································································································139
Printing labels ······················································································································································141
Writing labels ······················································································································································142
Affixing labels······················································································································································143
Information carried on labels·····························································································································145
Remarks ································································································································································146 Engineering labels for Ethernet cables·······················································································································146 Engineering labels for optical fibers ··························································································································147
Labels for the fiber that connects two devices··································································································147
Labels for the fiber that connects the device and the ODF ·············································································148 Engineering labels for power cords···························································································································149
Labels for DC power cords·································································································································149
Labels for AC power cords·································································································································151
Index ········································································································································································ 153
1
Product overview
The H3C S12500 Routing Switch Series includes the models in Table 1.
Table 1 S12500 models
Model MPU slots Line card slots Switching fabric module slots
S12508-AC 2 8 9
S12508-DC 2 8 9
S12518-AC 2 18 9
S12518-DC 2 18 9
NOTE:
The “AC” suffix in a chassis model represents AC powered and the “DC” suffix in a chassis model
represents DC powered.
The line card slots are for both Ethernet interface cards and OAA cards. For card specifications, see
“Appendix A Technical specifications.”
Unless otherwise stated, the configuration and installation procedures in this document apply to all
S12500 switches.
Physical architecture
NOTE:
The DC-powered model and the AC-powered model of a chassis look the same.
The diagrams in this guide are for illustration only.
2
S12508 chassis views
Figure 1 S12508 front view
1
2
3
4
5
2
4
6
7
(1) Power frame cover (2) Upper cabling rack (3) MPU slots (slots 0 and 1) (4) Lower cabling rack (5) System air intake vents (6) ESD-preventive wrist strap port (7) Line card slots (slots 2 to 9)
3
NOTE:
The power frame cover protects the power module air filter and the power frame slot. See “Power supply
syst
em.”
Figure 2 S12508 rear view
1
2
3
4
5
6
8
7
9
(1) Power entry module (PEM) (2) Upper fan tray
4
(3) Lower fan tray (4) Ventilation panel (5) Grounding screw (6) ESD-preventive wrist strap port (7) Switching fabric module slots (slots 10 to 18) (8) System air exhaust vents (9) Power air exhaust vents
The S12508 chassis has the following slots and components:
Two MPU slots and eight line card slots at the front, and nine switching fabric module slots at the
rear.
One power frame, at the top of the chassis, can accommodate up to six power modules.
Two horizontally oriented fan trays at the rear of the chassis. For the ventilation inside the chassis,
see Figure 7.
5
S12518 chassis views
Figure 3 Front view of the S12518
1
22
3
55
7
6
4
4
(1) Power frame cover (2) Upper cabling rack (3) MPU slots (slots 0 and 1) (4) Line card slots (slots 2 to 19) (5) Lower cabling rack (6) System air intake vents (7) ESD-preventive wrist strap port
6
Figure 4 S12518 rear view
1
2
3
4
5
6
7
8
9
(1) Power entry module (PEM) (2) Upper fan tray (3) Switching fabric module slots (slots 20 to 28) (4) Lower fan tray (5) Ventilation panel (6) Grounding screw (7) ESD-preventive wrist strap port (8) System air exhaust vents (9) Power air exhaust vents
7
The S12518 chassis has the following slots and components:
Two MPU slots and 18 line card slots at the front, and nine switching fabric module slots at the rear.
Two power frames at the top, and each power frame can accommodate up to six power modules.
Two horizontally oriented fan trays at the rear. For the ventilation inside the chassis, see Figure 7.
Backplane
The backplane of an S12500 switch is located inside the chassis. It provides high-speed data switching between switching fabric modules and line cards, and exchanges management and control signals between MPUs and line cards/switching fabric modules. The backplane provides the following capabilities:
Provides communication channels for signal exchange between cards.
Supports hot-swapping of cards.
Identifies card type.
Supplies power to MPUs, line cards, switching fabric modules, fan trays, and power modules when
connected to the power frame.
Provides monitoring channels to monitor power module status.
Fan tray
A fan tray contains fan units. The dimension of each fan unit is 120 × 120 × 38 mm (4.72 × 4.72 ×1.50 in).
Both the S12508 and the S12518 use an upper fan tray at the top and a lower fan tray at the bottom. Each fan tray comprises 12 fan units and one fan monitoring board.
S12500 fan trays provide the following functions:
Effective heat dissipation and single-point of failure protection.
Status monitoring, including fan rotation speed monitoring and fault alarming.
Fan speed can be controlled by the MPU or automatically adjusted based on temperature. The
S12508 and S12518 have four groups of fans. Speed adjustment is done on a per-group basis to decrease noise and improve energy efficiency.
Each fan tray has two LEDs on the front panel to show its operating status.
Hot swappable. The fans receive DC power from the backplane, and are hot swappable.
CAUTION:
The S12508 and S12518 use different fan trays, and do not support the intermixing of fan trays.
Figure 5 shows the S12508 fan tray. The physical view of the S12518 fan tray is similar.
8
Figure 5 S12508 fan tray
Table 2 Fan LED description
LED Color Status Description
Off
The fan tray has failed.
RUN Green
Flashing
The fan tray is operating properly.
Off
The fan tray is in a normal state.
Flashing
The fan tray is faulty.
ALM Red
On The fan tray is faulty.
Figure 6 and Figure 7 show the ventilation inside the chassis of the S12508 and S12518.
9
Figure 6 Ventilation inside an S12508 chassis
1
1
2
3
3
4
1
(1) System air intake direction (2) System air exhaust direction (3) Power module air intake direction (4) Power module air exhaust direction
10
Figure 7 Ventilation inside an S12518 chassis
1
1
1
3
3
2
4
(1) System air intake direction (2) System air exhaust direction (3) Power module air intake direction (4) Power module air exhaust direction
11
Power supply system
The S12500 Routing Switch Series provides both AC powered chassis and DC powered chassis. You can select power module and the number of power modules as needed.
Figure 8 Power frame appearance (without any power module)
AC power supply
The AC-powered chassis of the S12500 Routing Switch Series use the PSE9000-A1 AC power supply system, which comprises AC power frames, AC power modules, power monitoring modules, and power entry modules (PEMs).
AC power frame
Each AC power frame can have one power monitoring module and up to six AC power modules.
Figure 9 Front view of an AC power frame
(1) to (6) AC power modules (the serial numbers are identical to the slot numbers) (7) Power monitoring module (8) Power monitoring module LED (9) Power frame switch
12
Table 3 Description of the LEDs on the power monitoring module
LED Color Status Description
On
The power monitoring module is working properly.
RUN Green
Off
The power monitoring module is faulty.
On
At least one power module is faulty.
All power modules have been removed from the power
frame.
The switch of the power frame is off.
Power modules are in position, but no AC power supply
is provided.
Flashing A power module is being inserted or removed.
MAJOR Red
Off
The power modules are working properly.
MINOR Yellow Off Reserved
AC power module
The AC power modules are hot-swappable.
The power module fans draw in fresh air from the front and exhaust warm air out of the rear.
Multiple AC power modules work in N+1 or N+M redundancy and support load balancing.
Figure 10 AC power module
(1) Power input LED (2) Power output LED (3) Over-temperature alarm LED (4) Power module fault LED
Table 4 AC power module LED description
LED Color Status Description
On
Power is being correctly input.
Off
No power is being input.
Input Green
Flashing Input power exceeds the threshold.
13
LED Color Status Description
On Power is being correctly output.
Off No power is being output.
Output Green
Flashing The power output is overloaded.
On
The AC power module is experiencing an over-temperature condition.
Service Yellow
Off
The AC power module is operating properly.
On The AC power module is faulty.
Fault Red
Off The AC power module is operating properly.
Table 5 AC power module specifications
Item Description
Rated input voltage range
100 VAC to 120 VAC/200 VAC to 240 VAC; 50 Hz or 60 Hz
Max input voltage range
90 VAC to 264 VAC; 47 Hz to 63 Hz
Max input current 13.3 A
Max output power
2000 W at 200 VAC to 240 VAC input 1200 W at 100 VAC to 120 VAC input
Power monitoring module
The power monitoring module (callout 7 in Figure 9) monitors the alarm status, in-position status, and operating status of the power modules in real time. It is located between the power module slot area and the power switch.
PEM
The PEM (see Figure 11) provides power to the power modules.
Figure 11 PEM location
14
Table 6 PEM description
PEM Description Max number of power modules
LSTM2PEMC6 (PEM-C20)
Applied to the 110 V or 220 V single-phase three-wire AC power supply system
One PEM provides six standalone C20 (16A) sockets numbered in two rows: 1, 3, and 5 in the top row, and 2, 4, and 6 in the bottom row, from left to right.
6 (each C20 socket for one power module)
DC power supply
The DC-powered chassis of the S12500 Routing Switch Series use the PSE9000-D DC power supply system, which comprises DC power frames, DC power modules, and power monitoring modules.
DC power frame
Each DC power frame can have one power monitoring module and up to six DC power modules.
Figure 12 Front view of a DC power frame
(1) to (6) DC power modules (7) Power monitoring module (8) Power monitoring module LEDs (9) Power frame switch
NOTE:
Table 2 descri
bes the LED behaviors of the power monitoring module.
A DC power frame has six pairs of wire posts corresponding to power modules 1 to 6, and one grounding post. The external DC power system supplies power through the six pair of wire posts.
15
Figure 13 DC power frame rear view
1 2
(1) A pair of wire posts (2) Grounding post
NOTE:
The DC power frame has a cover to protect the wire posts and grounding post.
DC power module
Figure 14 DC power module
(1) Power input LED (2) Power output LED (3) Over-temperature alarm LED (4) Power fault LED
NOTE:
A DC power module has the same LED behaviors as an AC power module. For more information, see
Table 7.
Table 7 DC power module specifications
Item Description
Rated input voltage range –48 VDC to –60 VDC
Max input voltage range –42 VDC to –72 VDC
16
Item Description
Startup voltage range –44 VDC to –72 VDC
Max input current 60 A
Max output power 1800 W
Power monitoring module
The power monitoring module is vertically installed between the power module slot area and the power switch. It monitors the alarm status, in-position status, and operating status of the power modules in real time.
17
Preparing for installation
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.
General safety recommendations
Take adequate safety measures to avoid injury and switch damage. For example, wear an
ESD-preventive wrist strap.
Make sure that the ground is dry and flat and anti-slip measures are in place.
Keep the chassis clean and dust-free.
Do not place the switch on a moist area and avoid liquid surrounding the switch.
Keep the chassis and installation tools away from walk areas.
Move the switch and heavy components (such as the power supplies or chassis) with other people
rather than doing that alone.
Electricity safety
Clear the work area of possible hazards, such as ungrounded power extension cables, missing
safety grounds, and wet floors.
Locate the emergency power-off switch in the room before installation. Shut the power off at once in
case accident occurs.
Unplug all the external cables (including power cables) before moving the chassis.
Do not work alone when the switch has power.
Always check that the power has been disconnected.
ESD prevention
CAUTION:
To prevent the electronic components from being damaged by the electrostatic discharge (ESD), you should not only take ESD measures where the switch is located, but also take the following precautions:
Always wear an ESD-preventive wrist strap when installing components, especially the electronic printed
circuit boards.
Hold a PCB by its edges. Do not touch any electronic components or printed circuit.
Check the resistance of the ESD-preventive wrist strap for safety. The resistance reading should be in the
range of 1 to 10 megohm (Mohm) between human body and the ground.
To use the ESD-preventive wrist strap:
1. Wear the wrist strap on your wrist.
18
2. Lock the wrist strap tight around your wrist to keep good contact with the skin.
3. Insert the ESD-preventive wrist strap into the specially designed hole on the switch chassis or attach
it to the grounding screw of the chassis with the alligator clips.
4. Make sure that the ESD-preventive wrist strap is well grounded.
Figure 15 Use an ESD-preventive wrist strap
Switch moving
When you move an H3C S12500 switch, note the following guidelines:
Remove all the external cables (including the power cables) before moving the chassis.
For personal safety, have several persons to move the switch carefully.
When moving the switch, hold the handles at both sides of the chassis. Do not hold the plastic panel
of the chassis, the handle of the fan tray, the handle of the back cover of the chassis, or the air vents of chassis. Any attempt to carry the switch with these parts may cause equipment damage or even bodily injury.
WARNING!
For personal safety, at least four people are required to move an S12518 switch.
Laser safety
The H3C S12500 switches are Class 1 laser devices.
19
WARNING!
Do not stare into any fiber port when the switch has power. The laser li
g
ht emitted from the optical fiber
may hurt your eyes.
Examining the installation site
The H3C S12500 Routing Switch Series can only be used indoors. To ensure that the switch works properly and to prolong its service lifetime, the installation site must meet the following requirements:
Weight support
Evaluate the floor loading as compared to the actual weight of the switch and its accessories (such as cabinet, chassis, cards, and power supply units), and make sure that the floor can support the weight of the cabinet and the switch chassis.
TIP:
When you evaluate the floor loading, consider router
capacity expansion (for example, installing a ne
w
card) in the future.
Temperature
To ensure the normal operation of the switch, make sure that the room temperature meets the requirements described in Table 8.
Table 8 Temperature r
equirements
Temperature Range
Operating temperature
Long term: 0°C to 40°C (32°F to 104°F) Two hours: –10°C to +50°C (14°F to 122°F) (no more than 96
hours of continuous operation in less than 15 days in one year)
Storage temperature –40°C to +70°C (–40°F to +158°F)
CAUTION:
If condensation appears on the switch when you move it to a high-temperature environment, dry the switch before powering it on to avoid short circuits.
Humidity
Maintain appropriate humidity in your equipment room, as described in Table 9.
Table 9 Humidity requirements
Humidity Range
Operating humidity (noncondensing) 5% to 95%
Storage humidity (noncondensing) 5% to 95%
20
Lasting high relative humidity can cause poor insulation, electricity creepage, mechanical property change of materials, and metal corrosion. Lasting low relative humidity can cause washer contraction and ESD and bring problems including loose captive screws and circuit failure.
Cleanness
Dust buildup on the chassis may 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 10 Dust concentration limit in the equipment room
Substance Concentration limit (particles/cu m)
Dust particles 3 x 104 (no visible dust on the tabletop over three days)
NOTE:
Dust particle 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 11.
Table 11 Harmful gas li
mits in the equipment room
Gas Average (mg/m
3
) Max. (mg/m3)
SO2 0.3 1.0
H2S 0.1 0.5
NO2 0.004 0.15
NH
3
1.0 3
Cl
2
0.1 0.3
EMI
All electromagnetic interference (EMI) sources, from outside or inside of the switch and application system, adversely affect the switch in a conduction pattern of capacitance coupling, inductance coupling, electromagnetic wave radiation, or common impedance (including the grounding system) coupling. To prevent EMI, take the following actions:
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.
Route interface cables only indoors to prevent signal ports from getting damaged by overvoltage or
overcurrent caused by lightning strikes.
Grounding
Using a good grounding system to protect your switch against lightning shocks, interferences, and ESD is essential to the operating reliability of your switch.
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