Huawei pRRU3901 Instruction Manual

Doc. Code
pRRU3901
Compliance and Safety Manual
Issue
01
Date
2012-07-19
HUAWEI TECHNOLOGIES CO., LTD.

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i
Copyright © Huawei Technologies Co., Ltd. 2012. All rights reserved.
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
Website:
http://www.huawei.com
Email:
[email protected]

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Contents
1 Regulatory Compliance Information .....................................................................................1-1
1.1 About This Chapter .......................................................................................................................................1-1
1.2 Regulatory Compliance Standards................................................................................................................1-1
1.3 Japanese Regulatory Compliance..................................................................................................................1-2
1.3.1 VCCI....................................................................................................................................................1-2
1.4 USA Regulatory Compliance........................................................................................................................1-3
1.4.1 FCC Part 15..........................................................................................................................................1-3
1.5 Canada Regulatory Compliance....................................................................................................................1-3
1.5.1 RSS-Gen statement ..............................................................................................................................1-3
1.5.2 RSS-102 statement:..............................................................................................................................1-4
2 Safety Information.....................................................................................................................2-5
2.1 About This Chapter .......................................................................................................................................2-5
2.2 Overview.......................................................................................................................................................2-5
2.2.1 Safety Precautions................................................................................................................................2-5
2.2.2 General Requirements..........................................................................................................................2-6
2.3 Electricity Safety...........................................................................................................................................2-7
2.3.1 High Voltage ........................................................................................................................................2-7
2.3.2 Thunderstorm.......................................................................................................................................2-7
2.3.3 Tools.....................................................................................................................................................2-8
2.3.4 High Electrical Leakage.......................................................................................................................2-8
2.3.5 Power Cable.........................................................................................................................................2-8
2.3.6 Fuse......................................................................................................................................................2-9
2.3.7 Battery..................................................................................................................................................2-9
2.4 Electrostatic Discharge................................................................................................................................2-11
2.5 Inflammable Environment...........................................................................................................................2-12
2.5.1 Laser...................................................................................................................................................2-12
2.6 Working at Heights......................................................................................................................................2-13
2.6.1 Weight Lifting....................................................................................................................................2-14
2.6.2 Safety Guide on Ladder Use..............................................................................................................2-15
2.7 Mechanical Safety.......................................................................................................................................2-16
2.7.1 Drilling...............................................................................................................................................2-16
2.7.2 Sharp Objects.....................................................................................................................................2-16

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2.7.3 Handling Fans....................................................................................................................................2-16
2.7.4 Lifting Heavy Objects........................................................................................................................2-17
2.8 Miscellaneous..............................................................................................................................................2-17
2.8.1 Inserting and Removing a Board........................................................................................................2-17
2.8.2 Bundling Signal Cables......................................................................................................................2-17
2.8.3 Cabling Requirements........................................................................................................................2-17

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1 Regulatory Compliance Information
1.1 About This Chapter
The following table lists the contents of this chapter.
Title
Description
1.2 Regulatory Compliance
Standards
The regulatory compliance standards on EMC, safety,
Laser Radiation, RF, health, and environmental
protection.
1.3 Japanese Regulatory
Compliance
The Japan regulatory compliance.
1.2 Regulatory Compliance Standards
pRRU3901 complies with the standards listed in Table 1-1.
Table 1-1 Regulatory compliance standards
Discipline
Standards
EMC
CISPR22 Class B
CISPR24
EN55022 Class B
EN55024
ETSI EN 301 489 Class B
CFR 47 FCC Part 15 Class B
ICES 003 Class B
AS/NZS CISPR22 Class B
GB9254 Class B
VCCI Class B
CNS 13438 Class B

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Discipline
Standards
Note:
EMC: electromagnetic compatibility
RF: radio frequency
CISPR: International Special Committee on Radio Interference
EN: European Standard
ETSI: European Telecommunications Standards Institute
CFR: Code of Federal Regulations
FCC: Federal Communication Commission
IEC: International Electrotechnical Commission
AS/NZS: Australian/New Zealand Standard
VCCI: Voluntary Control Council for Interference
CNS: Chinese National Standard
UL: Underwriters Laboratories
CSA: Canadian Standards Association
BS: British Standard
IS: Indian Standard
GR: general requirement
FDA: Food and Drug Administration
DBS: distribut transceiver station
GSM: Global System for Mobile communications
LTE: Long Term Evolution
WiMAX：Worldwide interoperability Microwave Access
WLAN: wireless local area network
ICNIRP: International Commission on Non-Ionizing Radiation Protection
OET: Office of Engineering Technology
IEEE: Institute of Electrical and Electronics Engineers
RoHS: restriction of the use of certain hazardous substances
1.3 Japanese Regulatory Compliance
1.3.1 VCCI
pRRU3901 complies with VCCI Class B by Information Technology Equipment (ITE).
The preceding translates as follows:
This is a Class B product based on the standard of the Voluntary Control Council for
interference by Information Technology Equipment (VCCI).If this product is used near a
radio or television receiver in a domestic environment. It may cause radio interference. Install
and use the equipment according to the instruction manual.

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1.4 USA Regulatory Compliance
1.4.1 FCC Part 15
BTS3902E WCDMAcomplies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions:
This device does not cause harmful interference.
This device must accept any interference received, including interference that may cause
undesired operation.
If this device is modified without authorization from Huawei, the device may no longer
comply with FCC requirements for Class B digital devices. In that a case, your right to use the
device may be limited by FCC regulations. Moreover, you may be required to correct any
interference to radio or television communications at your own expense.
This device 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 device generates, uses and radiates radio frequency energy. If it is not installed and used
in accordance with the instructions, it may cause harmful interference to radio
communications.
However, there is no guarantee that interference will not occur in a particular installation. If
this device does cause harmful interference to radio or television reception, which can be
determined by turning the device off and on, the user may take one or more of the following
measures:
Reorient or relocate the receiving antenna.
Reinforce the separation between the device and receiver.
Connect the device into an outlet on a circuit different from that to which the receiver is
connected.
Consult the dealer or an experienced radio or TV technician for assistance.
1.5 Canada Regulatory Compliance
1.5.1 RSS-Gen statement
This device complies with Industry Canada licence-exempt RSS standard(s).

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Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio
exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil
ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage est susceptible d'en compromettre le
fonctionnement.
1.5.2 RSS-102 statement:
This device is designed and manufactured not to exceed the emission limits for exposure to
radio frequency (RF) energy set by Industrial Canada and meets the requirements for radiation
exposure limits set forth for an uncontrolled environment.
In order to avoid the possibility of exceeding the Industrial Canada radio frequency exposure
limits, human proximity to the equipment shall not be less than 25cm.
Cet appareil est conçu et fabriquépour ne pas dépasser les limites d'émission pour l'exposition
àla fréquence radio (RF) de l'énergie fixépar l'Industrielle Canada et répond aux exigences en
matière de limites d'exposition aux rayonnements définies pour un environnement non
contrôlé.
Afin d'éviter la possibilitéde dépasser les limites d'exposition aux fréquences radio
industrielle du Canada, la proximitéhumaine pour l'appareil nedoit pas être inférieure à25cm.

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2 Safety Information
2.1 About This Chapter
The following table lists the contents of this chapter.
Title
Description
2.2 Overview
Safety precautions to be taken before installing and
maintaining the Huawei device.
2.3 Electricity Safety
Information about the electricity safety.
2.4 Electrostatic Discharge
Information about the electrostatic discharge safety.
2.5 Inflammable Environment
Information about the inflammable environment safety.
2.6 Working at Heights
Safety precautions to be taken before using the ladders or
hoisting heavy objects.
2.7 Mechanical Safety
Safety precautions on drilling, on sharp objects, on
handling fans, and on lifting heavy objects.
2.8 Miscellaneous
Safety precautions on inserting and removing boards, on
bundling signal cables, and cabling requirements.
2.2 Overview
2.2.1 Safety Precautions
This section describes the safety precautions to be taken before installing and maintaining the
Huawei device.
Before performing an operation, read the operation instructions and precautions to be
taken, and follow them to prevent accidents. The Caution, Warning and Danger items in
other documents do not cover all the safety precautions that must be followed. They are
only supplementary information. The installation and maintenance personnel need to
understand the basic safety precautions to be taken.
When operating the device, obey the local safety regulations. The safety precautions
provided in the documents are supplementary and shall be in compliance with the local
safety regulations.
When operating the Huawei device, in addition to the precautions, follow the specific
safety instructions given by Huawei.

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The installation and maintenance personnel must receive training in safety precautions.
Only qualified personnel can install or maintain the device.
2.2.2 General Requirements
To minimize the technically residual risk, it is imperative to obey the following rules. Read all
the instructions before operation.
For DC model: Reinforce insulation or double insulation must be provided to isolate DC
source from the AC mains supply.
Installation
The device (or system) must be installed or used in the access restricted location.
When installing the unit, always make the ground connection first and disconnect it at
the end.
The device must be fixed securely on the floor or other reliable objects, such as the walls
and the mounting racks before opera.
Ground
Do not damage the ground conductor or operate the device in the absence of well
installed ground conductor. Conduct the appropriate electrical inspection.
The device (or system) must be connected permanently to the protection ground before
an operation. The cross sectional area of protective ground conductor shall be at least 16
mm².
Power Supply
For DC supplied model: The device applies to DC power source that complies with the
Safety Extra-Low Voltage (SELV) requirements in IEC 60950-1 based safety standards.
Prepared conductors are connected to the terminal block, and only appropriate
AWG/Type of wire is secured in the listed lug terminals.
This device relies on the building’s installation for short-circuit (overcurrent) protection.
Ensure that a fuse or circuit breaker no larger than 80 VDC, 25A for DC supplied model
is used on the phase conductors (all current-carrying conductors).
For this device, a readily accessible disconnect device shall be incorporated in the
building installation wiring.
To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line cord.
Human Safety
Do not operate the device or cables at lightning strikes.
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to
telecommunication network voltage (TNV) circuits.
Do not look directly into the optical port to prevent the laser radiation from injuring your
eyes.
Do not wear jewelry or watches when you operate the device.
Operator
Only qualified and skilled personnel must install, configure, and disassemble the device.

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Only the personnel authorized must operate the device.
Any replacement or change to the device or parts of the device (including the software)
must be done by qualified or authorized personnel of Huawei.
Any fault or error that might cause safety problems must be reported immediately to the
person in charge.
Only qualified personnel must remove or disable the safety facilities, or to troubleshoot
and maintain the device.
Ensure that the instructions provided in this document are followed completely. The document
also provides guidelines in selecting the measuring and testing device.
2.3 Electricity Safety
2.3.1 High Voltage
DANGER
The high voltage power supply offers power for the device operation. Direct or indirect
contact (through damp objects) with high voltage andAC mains supply may result in fatal
danger.
During the installation of the AC power supply facility, follow the local safety
regulations. The personnel who install the AC facility must be qualified to perform high
voltage and AC operations.
Do not wear conductive articles, such as watches, hand chains, bracelets and rings during
the operation.
When water is found in the rack or the rack is damp, switch off the power supply
immediately.
When the operation is performed in a damp environment, make sure that the device is
dry.
WARNING
Non-standard and improper high voltage operations may result in fire and electric shock.
Therefore, you must obey the local rules and regulations when bridging and wiring AC cables.
Only qualified personnel must perform high voltage andAC operations.
2.3.2 Thunderstorm

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DANGER
High voltage andAC operations or operations on a steel tower and a mast are prohibited
during thunderstorm.
During thunderstorm, the electromagnetic field generated in the thunderstorm area may
damage the electronic parts. To prevent damage to the device during lightning, ground the
device properly.
2.3.3 Tools
WARNING
Suggestion: Dedicated tools must be used during high voltage andAC operations.Avoid using
ordinary tools.
2.3.4 High Electrical Leakage
WARNING
Ground the device before powering on the device. Otherwise, the personnel and device are in
danger.
If the "high electrical leakage" flag is stuck to the power terminal of the device, you must
ground the device before powering it on.
2.3.5 Power Cable
WARNING
Installation and removal of live line are prohibited. Transient contact between the core of the
power cable and the conductor may generate electric arc or spark, which may cause fire or eye
injury.
Before installing or removing the power cable, turn off the power switch.
Before connecting the power cable, confirm that the power cable and label comply with
the requirements of the actual installation.

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2.3.6 Fuse
WARNING
If a fuse is to be replaced, the new fuse shall be of the same type and specifications.
2.3.7 Battery
I. Storage Battery
Before operating storage batteries, carefully read the safety precautions for battery handling
and connection.
Improper handling of storage batteries causes hazards.
When operating storage batteries, avoid short circuit and overflow or leakage of the
electrolyte. Electrolyte overflow may damage the device. It will corrode metal parts and
circuit boards, and ultimately damage the device and cause short circuit of circuit boards.
Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries
according to the instructions.
II. Basic Precautions
Before installing and maintaining the battery, note the following:
Do not wear metal articles such as wristwatch, hand chain, bracelet, and ring.
Use special insulation tools.
Take care to protect your eyes when operating the device.
Wear rubber gloves and a protective coat in case of electrolyte overflow.
When handling a storage battery, ensure that its electrodes are upward. Leaning or
reversing the storage battery is prohibited.
III. Short Circuit

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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.
There is danger of explosion if the battery is incorrectly replaced. Therefore, replace the
battery only with the same or equivalent type recommended by the manufacturer.
Keep away metal objects, which may cause battery short circuit, from batteries. If metal
objects must be used, first disconnect the batteries in use before performing any other
operations.
IV. Hazardous Gas
Do not use unsealed lead acid storage batteries. 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.
Lead acid storage batteries in use emit flammable gas. Therefore, ventilation and
fireproofing measures must be taken at the sites where lead acid storage batteries are used.
V. Battery Temperature
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℃, check the battery for electrolyte
overflow. If the electrolyte overflows, absorb and counteract the electrolyte immediately.
VI. Battery Leakage
When the electrolyte overflows, absorb and counteract the electrolyte immediately.

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When moving or handling a battery whose electrolyte leaks, note that the leaking electrolyte
may hurt human bodies. When you find the electrolyte leaks, use the following substances to
counteract and absorb the leaking electrolyte:
Sodium bicarbonate (baking soda): NaHCO3
Sodium carbonate (soda): Na2CO3
Select a substance to counteract and absorb the leaking electrolyte according to the
instructions of the battery manufacturer.
VII. Lithium Battery
There is danger of explosion if the battery is incorrectly replaced. Therefore, replace the
battery only with the same or equivalent type recommended by the manufacturer.
Exhausted lithium ion batteries must be disposed of according to the instructions.
Do not throw lithium ion batteries into fire.
2.4 Electrostatic Discharge
CAUTION
The static electricity generated by the human body may damage the electrostatic sensitive
components on the circuit board, such as the large-scale integrated circuit (LSI).
In the following situations, the human body will generate a static electromagnetic field:
Human body moving
Clothes friction
Friction between shoes and the ground
Holding ordinary plastic in hand
The static electromagnetic field will remain within the human body for a long time.
Before touching the device, hand-operating parts, circuit boards, orASICs, wear a grounded
electrostatic discharge (ESD) wrist strap. It can prevent the sensitive components from
damage by the static electricity in the human body.
Figure 2-1 shows the wearing of an ESD wrist strap.

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Figure 2-1 Wearing an ESD wrist strap
2.5 Inflammable Environment
Operating the electrical device in inflammable environment can be fatal.
DANGER
Do not place the device in the environment that has inflammable and explosive air or fog. Do
not perform any operation in this environment.
2.5.1 Laser
The laser hazard level of this device is Class 1.
WARNING
When handling optical fibers, do not stand close to, or look at the optical fiber outlet directly
with unaided eyes.

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General Laser Information
Laser transceivers or transmitters are used in the optical transmission system and associated
test tools. The wavelength of the laser is between 780 nm and 1600 nm. Because the laser is
transmitted through the optical fiber, it has very high power density and is invisible to human
eyes. When a beam of light enters the eye, the retina may be damaged.
Laser of wavelengths used in telecommunications can cause thermal damage to the retina.
Lasers used in lightwave systems have a larger beam divergence, typically 10 to 20 degrees.
Viewing an un-terminated fiber or damaged fiber with the unaided eye at distances greater
than 150 mm (6 inches) will normally not cause eye injury. However, damage may occur if an
optical tool such as a microscope, magnifying glass or eye loupe is used to view the energized
fiber end.
In its normal operating mode, a lightwave system is totally enclosed and presents no risk of
eye injury. Additional safety is achieved by an automatic laser shut-down (ALS) of the system.
The ALS, however, can be applied for bi-directional transmission only. If the receiver side
does not detect the laser from the transmission side, it will give the transmission side a signal.
Upon receiving the signal, theALS will shut down the laser emission within 100 ms.
Laser Safety Guidelines
Read the following guidelines to avoid laser radiation:
Read the instructions before installing, operating and maintaining the device. Ignoring
the instructions can cause exposure to dangerous laser radiation.
Wear a pair of eye-protective glasses when you are handling lasers or fibers.
All the operation shall be performed by personnel who have completed the approved
training courses.
Make sure that the optical source is switched off before disconnecting optical fiber
connectors.
Before opening the front door of an optical transmission system, make sure that you are
not exposed to laser radiation.
Do not look at the end of an exposed fiber or an open connector when you are not sure
whether the optical source is switched off or not.
Use an optical power meter to check and ensure that the optical source is switched off by
measuring the optical power.
Do not use an optical tool such as a microscope, a magnifying glass or an eye loupe to
view the optical connector or fiber.
Handling Fibers
Read the instructions before handling fibers.
Cutting and splicing fibers must be performed by the trained personnel only.
Before cutting or splicing a fiber, ensure the fiber is disconnected from the optical source.
After disconnecting the fiber, use protecting caps to protect all the optical connectors.
2.6 Working at Heights

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WARNING
When working at heights, be careful to prevent objects from falling.
When working at heights, shall comply with the following requirements.
The personnel who work at heights must be trained.
The operating machines and tools shall be carried and handled safely to avoid falling.
Safety protection measures, such as wearing a helmet and a safety belt, shall be taken.
In cold regions, wear worm clothes when performing high-altitude operation.
All lifting appliances must be thoroughly checked before the work is started.
2.6.1 Weight Lifting
WARNING
Do not access the areas under the jib arm and the goods in suspension when lifting weight.
Ensure the operators have completed the related training and are qualified.
Check the weight lifting tools and confirm that the tools are in good condition.
Lift the weight only when the weight lifting tools are firmly fixed onto the
weight-bearing object or the wall.
Use a concise command to avoid incorrect operation.
Ensure the angle between the two cables is less than or equal to 90 degrees during the lift.
(see Figure 2-2).

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Figure 2-2 Weight lifting
Maximum 90
2.6.2 Safety Guide on Ladder Use
Checking the Ladder
Before using the ladder, first check if the ladder is in good condition. Make sure that you
know the maximum weight that the ladder can support; overweight on the ladder is strictly
prohibited.
Placing the Ladder
Slant angle is suggested to be 75 degrees. The slant can be measured with the angle square or
with arms. When using a ladder, place the wider end of the ladder on the ground. Otherwise,
take protective measures on the base part of the ladder to avoid skidding. Place the ladder on
stable ground.

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Climbing the Ladder
When climbing the ladder, note the following.
Ensure the gravity center of your body does not deviate from the ladder edge.
To lessen the danger and ensure the safety, hold your balance on the ladder before any
operation.
Do not climb higher than the forth highest step of the ladder.
If you are about to climb to the top, the length of the ladder shall be one meter higher
than the eave.
2.7 Mechanical Safety
2.7.1 Drilling
WARNING
Drilling on the rack without permission is strictly prohibited. Drilling that does not satisfy the
requirements concerned may damage the wires and cables inside the rack. If the metal
shavings from the drilling fall into the rack, it may result in short circuit of the circuit boards.
Before drilling a hole on the rack, wear insulation gloves, and remove the cables inside
the rack.
During the drilling, ensure that your eyes are well protected. The hot shavings may
injury to your eyes.
Ensure that the metal shavings do not get into the rack.
Non-standard drilling may damage the electromagnetic shielding performance of the
rack.
After drilling, clean the metal shavings in time.
2.7.2 Sharp Objects
WARNING
When carrying the device by hand, wear protection gloves to avoid injury by sharp objects.
2.7.3 Handling Fans
Ensure the following:
When replacing a component, place the component, screw, and tool at a safe place to
prevent them from falling into the running fan.