No part of this document may be reproduced or transmitted in any form or by any means without
prior written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their
respective holders.
Notice
The purchased products, services and features are stipulated by the contract made between
Huawei and the customer. All or part of the products, services and features described in this
document may not be within the purchase scope or the usage scope. Unless otherwise specified
in the contract, all statements, information, and recommendations in this document are provided
"AS IS" without warranties, guarantees or representations of any kind, either express or implied.
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 a warranty of any kind,
express or implied.
Huawei Technologies Co., Ltd.
Address:
Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Updates between document versions are cumulative. Therefore, the latest document
version contains all updates made to previous versions.
About HedEx Lite
HedEx Lite is the latest product documentation management system released by
Huawei. HedEx Lite is installation-free, lightweight, and provides the global
search feature.
How to Obtain and Update Documentation
This chapter describes how to obtain and update the documentation.
Feedback
This chapter describes how to feedback suggestions and comments of the Huawei
documentation.
Notice: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
MODIFICATION: Any changes or modifications not expressly approved by the grantee of this device
could void the user’s authority to operate the device.
This device should be installed and operated with a minimum distance of 20cm between the antenna
and all persons.
Updates between document versions are cumulative. Therefore, the latest document
version contains all updates made to previous versions.
Issue 01 (2017-03-30)
This issue is the first commercial release.
Parent topic: Library Information
1.2 About HedEx Lite
HedEx Lite is the latest product documentation management system released by
Huawei. HedEx Lite is installation-free, lightweight, and provides the global
search feature.
HedEx Lite is the latest product documentation management system released by
Huawei. HedEx Lite does not require installation. It is lightweight and provides
the global search feature. It is compatible with HedEx V100R002.
NOTE:
Huawei product documentation is delivered in HDX format. HDX is a compressed file format, which
supports browsing of HTML and PDF files using HedEx.
How to Obtain
You can obtain HedEx Lite by means of:
HedEx Lite download link provided at http://support.huawei.com/enterprise
Basic Functions
HedEx Lite manages electronic documentation for different Huawei products and
software versions in a centralized manner. It provides the following functions:
document browsing, searching, printing, bookmark, commenting, feedback,
documentation package management, and automatic upgrade of documentation package
and software. For details, see the online Help of HedEx Lite.
Features
Secure and installation-free
HedEx Lite does not need to be installed. It requires only a small amount of
disk space and memory.
HedEx Lite enables you to browse documents of different products and software
versions in one window.
Easy access to latest documentation
Using HedEx Lite, you can:
Download documentation of any version.
Update your local documentation package anytime.
Specify an interval for automatic update of your local documentation
package.
Highly compatible
HedEx Lite runs on mainstream Windows operating systems and supports browsers
such as Internet Explorer, Mozilla Firefox, Apple Safari, and Google Chrome.
Highly secure
Application-level access control: HedEx Lite accepts only connection
requests from local loopback IP address (127.0.0.1). Connection requests
from any other IP address will be rejected.
System-level network protection: HedEx Lite complies with firewall access
control polices of customers. It can run behind the firewall provided by
Windows or a third-party firewall.
Security protection for documentation package update: Strict approval
process is applied to ensure that documents uploaded to
http://support.huawei.com/enterprise do not contain any executable codes.
Security protection for software upgrade: Strict approval process is
applied to ensure that the HedEx Lite software package uploaded to
http://support.huawei.com/enterprise is complete and legitimate.
Parent topic: Library Information
1.3 How to Obtain and Update Documentation
This chapter describes how to obtain and update the documentation.
NOTE:
To use HedEx Lite or to log in to Huawei technical support website, you need a registered user
account. You can apply for a user account at http://support.huawei.com/enterprise or apply for an
account by contacting the service manager of your local Huawei office.
You can obtain CPI documents in the following ways:
Use the online search function provided by HedEx Lite to find the
documentation package you want and download it. This method is recommended
because you can directly load the desired documentation package to HedEx Lite.
For details about how to load a documentation package, see the online Help of
HedEx Lite.
Download the desired documentation package from http://support.huawei.com/enterprise.
Updating Documentation
You can update CPI documents in the following ways:
Enable the library upgrade function provided by HedEx Lite. This method is
recommended because HedEx Lite can automatically detect the latest version
for your local documentation packages and prompt you to conduct an upgrade.
For details about how to enable the library upgrade function, see the online
Help of HedEx Lite.
Download the latest documentation packages from http://support.huawei.com/enterprise.
Parent topic: Library Information
1.4 Feedback
This chapter describes how to feedback suggestions and comments of the Huawei
documentation.
Huawei welcomes your suggestions and comments. You can provide your feedback to
us in any of the following ways:
Call the service hotline of your local Huawei office.
Send an email to support_e@huawei.com.
Use the feedback function provided by HedEx Lite to send your suggestions to
support_e@huawei.com. For details about how to use the feedback function, see the
This section describes the safety precautions you must take before installing or
maintaining Huawei equipment.
All Safety Instructions
To ensure safety of humans and the equipment, pay attention to the safety
symbols on the equipment and all the safety instructions in this document.
The "CAUTION", "WARNING", and "DANGER" are only supplements to the safety
instructions.
Local Laws and Regulations
When operating the device, you must follow the local laws and regulations. The
safety instructions in this document are only supplements to the local laws and
regulations.
Basic Installation Requirements
Only professional or qualified personnel are allowed to install, operate, and
maintain the equipment.
Only qualified and professional personnel are allowed to dismantle security
facilities and troubleshoot the equipment.
Only the personnel authenticated or authorized by Huawei are allowed to
replace or change the device or the parts of the device (including the
software).
The operator must report the faults or errors that may cause safety problems
to the person in charge of the device immediately.
Personal Safety
Requirements for operations in thunderstorms are:
Do not operate the device or cables.
Disconnect the AC power connectors.
Do not use fixed terminals.
Do not touch terminal or antenna connectors.
NOTE:
The preceding requirements apply to wireless fixed station terminals.
If a high leakage current mark is labelled near the power connector of the
device, you must connect the protection grounding terminal on the device housing
to the ground before connecting the device to an A/C input power supply. This is
to prevent the electric shock caused by the leakage current of the device.
Power Cables
DANGER:
Installing or removing power cables when the device is on is prohibited. This is
because when the cores of power cables contact conductors, electric arcs or
sparks are generated, which may cause fire or hurt human eyes.
Before installing or removing power cables, you must power off the device.
Before connecting a power cable, you must check that the label on the power
cable is correct.
Parent topic: Health and Safety
2.1.3 Inflammable Environment
This section provides safety instructions for operations in an air environment
where devices are operating.
DANGER:
Do not place the device in an environment that has inflammable and explosive air
or gas. Do not perform any operation in this environment.
Parent topic: Health and Safety
2.1.4 Working at Heights
This section provides safety instructions for working at heights.
CAUTION:
Avoid object falling when you work at heights.
When working at heights, fulfill the following requirements:
Only trained personnel can work at heights.
Prevent the devices and tools that you carry from falling down.
Take safety and protection measures, for example, wear a helmet and safety
belt.
Wear warm clothes when working at heights in a cold region.
Before working at heights, check that all the lifting facilities are in good
condition.
Hoisting heavy objects
This section provides safety instructions for hoisting heavy objects that you
must follow when installing, operating, and maintaining Huawei devices.
Using Ladders
This section provides safety instructions for using ladders.
Parent topic: Health and Safety
2.1.4.1 Hoisting heavy objects
This section provides safety instructions for hoisting heavy objects that you
must follow when installing, operating, and maintaining Huawei devices.
CAUTION:
Do not walk below the cantilever or hoisted objects when heavy objects are being
hoisted.
Only trained and qualified personnel can perform hoisting operations.
Before hoisting heavy objects, check that the hoisting tools are complete and
in good condition.
Before hoisting heavy objects, ensure that the hoisting tools are fixed to a
secure object or wall with good weight capacity.
Issue orders with short and explicit words to avoid misoperations.
Ensure that the angle formed by two cables is not larger than 90 degrees.
This section provides safety instructions for using ladders.
Checking Ladders
Before using a ladder, check whether the ladder is damaged. Only the ladder
in good condition can be used.
Before using a ladder, you should know the maximum weight capacity of the
ladder. Avoid overweighing the ladder.
Placing Ladders
The recommended gradient of the ladder is 75 degrees. You can measure the
gradient of the ladder with an right angle or your arm. See Figure 1. When using a
ladder, ensure that the wider feet of the ladder are downward, or take
protection measures for the ladder feet to prevent the ladder from sliding.
Ensure that the ladder is placed securely.
Figure 1 Leaning a ladder
Climbing Up a Ladder
When climbing up a ladder, note the following :
Ensure that the center of gravity of your body does not deviate from the
edges of the two long sides.
To minimize the risk of falling, hold your balance on the ladder before any
Do not climb higher than the fourth rung of the ladder (counted from up to
down).
If you want to climb up a roof, ensure that the ladder top is at least one meter
higher than the roof. See Figure 2.
Figure 2 Ladder top being one meter higher than the roof
Parent topic: Working at Heights
2.1.5 Mechanical Safety
This section provides safety instructions for drilling holes, handling sharp
objects, operating fans, and carrying heavy objects.
Drilling Holes
NOTICE:
Do not drill the cabinet at will. Drilling holes without complying with the
requirements may affect the electromagnetic shielding performance of the cabinet
and damage the cables inside the cabinet. In addition, if the scraps caused by
drilling enter the cabinet, the printed circuit boards (PCBs) may be short
circuited.
Wear an eye protector when drilling holes. This is to prevent the operator's
eyes from being injured by the splashing metal scraps.
CAUTION:
Before you hold or carry a device, wear protective gloves to avoid getting
injured by sharp edges of the device.
Fans
When replacing the parts near fans, do not insert your fingers or boards into
the operating fans before the fans are switched off and stop running. Otherwise,
the hands of the operator can get hurted.
Carrying Heavy Objects
Wear protection gloves when carrying heavy objects. This is to prevent the
carrier's hands from being hurt.
CAUTION:
The carrier must be prepared for load bearing before carrying heavy objects.
This is to prevent the carrier from being strained or pressed by the heavy
objects.
When you pull a chassis out of the cabinet, pay attention to the unstable or
heavy objects on the cabinet. This is to prevent the heavy objects on the
cabinet top from falling down, which may hurt the operator.
Generally, two persons are needed to carry a chassis. It is prohibited that
only one person carries a heavy chassis. When carrying a chassis, the
carriers should stretch their backs and move stably to avoid being strained.
When moving or lifting a chassis, hold the handles or bottom of the chassis.
Do not hold the handles of the modules installed in the chassis, such as the
power modules, fan modules, and boards.
Parent topic: Health and Safety
2.2 Equipment Safety
This section provides the safety instructions that you must follow when
installing, operating, and maintaining Huawei devices.
This section provides the general instructions for the installation, operation,
and maintenance of Huawei devices.
Electrical Safety
This section provides safety instructions for high voltage, high leakage current,
power cables, fuses, and electrostatic discharge (ESD).
Inflammable Environment
This section provides safety instructions for operations in an air environment
where devices are operating.
Battery
This section provides safety instructions for operations of storage batteries
and lithium ion batteries.
Mechanical Safety
This section provides safety instructions for hole drilling and fans.
Others
This section provides safety instructions for installing and removing boards,
binding signal cables, and handling cables at low temperature.
Parent topic: Safety
2.2.1 General Instructions
This section provides the general instructions for the installation, operation,
and maintenance of Huawei devices.
All Safety Instructions
To ensure the safety of humans and the device, follow the marks on the device
and all the safety instructions in this document.
The "CAUTION", "WARNING", and "DANGER" marks in this document are only
supplements to the safety instructions.
Local Laws and Regulations
When operating the device, you must follow the local laws and regulations. The
safety instructions in this document are only supplements to the local laws and
regulations.
Only professional or qualified personnel are allowed to install, operate, and
maintain the equipment.
Only qualified and professional personnel are allowed to dismantle security
facilities and troubleshoot the equipment.
Only the personnel certified or authorized by Huawei are allowed to replace
or change the device of the parts or the device (including the software).
The operator must report the faults or errors that may cause safety problems
to the person in charge of the device immediately.
Grounding Requirements
The following requirements only apply to the devices that need to be grounded.
When you install a device, you must ground it first. When you remove a device,
you must remove the ground cable at last.
Damaging grounding conductors is prohibited.
Operating a device before the grounding conductor is installed is prohibited.
Devices must be connected to the grounding earth permanently. Before
operating a device, check the electrical connection of the device and ensure
that the device is properly grounded.
Device Safety
Before operating the device, securely fix the device on the floor or another
stable object, for example, a wall or an installation rack.
Do not block the ventilation openings when the device is in operation.
When installing panels, you must use a proper tool to tighten the screws.
After installing the device, clear the package material from the site where
the device is installed.
Parent topic: Equipment Safety
2.2.2 Electrical Safety
This section provides safety instructions for high voltage, high leakage current,
power cables, fuses, and electrostatic discharge (ESD).
Operating the high voltage power supply incorrectly or irregularly may cause
accidents such as fire or electric shock.
High Electrical Leakage
NOTICE:
Before powering on a device, ground the device. Otherwise, the safety of the
device cannot be ensured.
Power Cables
DANGER:
Installing or removing power cables when the device is on is prohibited. This is
because when the cores of power cables contact conductors, electric arcs or
sparks are generated, which may cause fire.
Before installing or removing the power cable, turn off the power switch.
Before connecting a power cable, check that the label on the power cable is
correct.
Fuses
NOTICE:
To ensure the safety of the device, when the fuse on the device is blown, you
must replace the blown fuse with a fuse of the same type and specification.
ESD
NOTICE:
The Static charge generated on human bodies may damage the electrostatic
sensitive devices (ESSDs) on boards, for example, large-scale integration (LSI)
integrated circuits (ICs).
Human body movement, friction between human bodies and clothes, friction
between shoes and floors, or handling of plastic articles causes static
electromagnetic fields on human bodies. These static electromagnetic fields
cannot be eliminated until the static is discharged.
To prevent electrostatic-sensitive components from being damaged by the
static on human bodies, you must wear a well-grounded ESD wrist strap when
Use special insulation tools.
When handling the storage battery, ensure that its electrodes are upward.
Leaning or reversing the storage battery is prohibited.
Before installing or maintaining the storage battery, ensure that the storage
battery is disconnected from the power supply that charges the storage
battery.
Short Circuit
CAUTION:
Battery short circuit may cause human injuries. Although the voltage of ordinary
batteries is low, the instantaneous high current caused by the short circuit
releases a great deal of energy.
Avoid short circuit of batteries caused by metal objects. If possible,
disconnect working batteries before the other operations.
Hazardous Gas
NOTICE:
Using unsealed lead acid storage batteries is prohibited. Lead acid storage
batteries must be placed horizontally and stably to prevent the batteries from
releasing flammable gas, which may cause fire or erode the device.
Working lead acid storage batteries release flammable gas. Therefore,
ventilation and fireproofing measures must be taken at the sites where lead acid
storage batteries are placed.
Battery Temperature
NOTICE:
If a battery overheats, the battery may be deformed or damaged, and the
electrolyte may overflow.
When the temperature of the battery is higher than 60°C (140°F), you need to
check whether the electrolyte overflows. If the electrolyte overflows, you can
use Battery Leakage to absorb and counteract the leaking electrolyte.
When the electrolyte overflows, absorb and counteract the electrolyte
immediately.When moving or handling a battery whose electrolyte leaks, note that
the leaking electrolyte may hurt human bodies.
When you find the electrolyte leaks, Select a substance to absorb and counteract
the leaking electrolyte according to the instructions of the battery
manufacturer.
Parent topic: Battery
2.2.4.2 Lithium Battery
This section provides safety instructions for operations of lithium ion
batteries.
CAUTION:
Replacing a lithium ion battery with a lithium ion battery of another model may
cause explosion.
You can replace a lithium ion battery only with a lithium ion battery of a
model recommended by the manufacturer.
Exhausted lithium ion batteries must be disposed of according to the
instructions.
Do not throw lithium ion batteries into fire.
Parent topic: Battery
2.2.5 Mechanical Safety
This section provides safety instructions for hole drilling and fans.
Drilling Holes
NOTICE:
Do not drill the cabinet at will. Drilling holes without complying with the
requirements may affect the electromagnetic shielding performance of the cabinet
and damage the cables inside the cabinet. In addition, if the scraps caused by
drilling enter the cabinet, the printed circuit boards (PCBs) may be short
circuited.
Before drilling holes in a cabinet, move the cables inside the cabinet away
from the drilling positions.
Prevent metal scraps from falling into the cabinet. After drilling holes,
clear the metal scraps.
Fans
When replacing parts, place the objects such as the parts, screws, and tools
properly. This is to prevent them from falling into the operating fans, which
damages the fans or device.
Parent topic: Equipment Safety
2.2.6 Others
This section provides safety instructions for installing and removing boards,
binding signal cables, and handling cables at low temperature.
Installing and Removing Boards
NOTICE:
Before installing a board, you need to wear an electrostatic discharge (ESD)
wrist strap and ESD gloves. When installing the board, use proper force to
prevent the pins on the backplane from being leaned.
To ensure all the boards are running properly, Installing and Removing Boards
must fulfill the following requirements:
Install the board along the guide rails.
Prevent the surface of a board from contacting the surface of another board.
This is to prevent the boards from being short circuited or scratched.
To prevent the electrostatic sensitive devices (ESSDs) from being damaged by
the static charge on the human body, do not touch the circuits, components,
connectors, or cable connection slots on the boards.
NOTICE:
Do not bind signal cables with high current cables or high voltage cables.
Laying Out Cables
When the temperature is very low, violent strike or vibration may disturb the
plastic coats of cables. To ensure safety, fulfill the following requirements:
Cables can be laid or installed only when the temperature is higher than 0°C
(32°F).
Before laying out cables which have been stored in a temperature lower than
0°C (32°F), move the cables to an environment of the ambient temperature
and store them in the ambient temperature for at least 24 hours.
Handle cables with caution, especially in a low temperature. Irregular
operations, such as pushing cables down from the vehicle, are prohibited.
This document describes the eAN3810A in term of product features, network
position and functions, logical structure, transport network topologies,
operation and maintenance, technical specifications, and reliability. It aims to
help user better understand the eAN3810A.
Product Version
NOTE:
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