Huawei HW-Li2Ah User manual

Battery Backup Unit
User Guide
1 Safety Precautions
To use the battery properly and safely, read the safety precautions carefully before using
ly observe these precautions when using the battery.
Basic R
zut permission. In the case of a battery fault,
z, safety design, or performance design of the battery
.
Enviro
zed that you reserve a space of
zay from heat sources or exposed fire
zagnetic or electric field, such as microwave ovens, refrigerators, and mobile
the battery and strict
equirements
Do not disassemble the battery witho
contact the authorized service center.
Do not change the structure
without prior authorization
nmental Requirements
zKeep the battery away from water sources or damp areas.
zInstall the battery in strict compliance with the requirements of suppliers.
Do not place any object on the battery. It is recommend
at least 10 cm around the battery for heat dissipation.
zDo not place the battery near any inflammable materials such as foams.
During the installation, keep the battery aw
sources such as electric heaters and candles.
During the installation, keep the battery away from electric appliances that generate
strong m
phones.
Instructions for Use
Fully charge the battery when you use it for the first time. If the battery is out of power,
charge it immediately. If you do not plan on using the battery for a long time, fully
charge it, and then charge it at least once per three months (for the 2 Ah battery) or six
months (for the 4 Ah battery). Otherwise, the battery will be damaged.
1

zIf the batter
dy is out of power and left uncharged for a long time, it will fall into a deep
bischarge state, which will cause a permanent damage to the battery cell. If the
attery is damaged, hand it over to the certified recycling station.
The battery has the discharge protection function. When over-discharge impends, the battery
elf-discharge.
sal.
or its accessories. damaged.
cables.
ables. Otherwise, they may be
zer cables.
zodily allergy.
e battery.
zIn the case of any abnormality of the battery, for example, smoke, unusual sound, or
stop using the battery and disconnect it from the mains supply.
authorized service center.
2 Packing List
enables its over-discharge protection and performs low s
zDispose of the battery properly to avoid environment pollution. Hand it over to the
certified recycling station for proper dispo
zDo not leave the battery unattended with children.
zKeep children away from the battery and its accessories to prevent dangers such as
swallowing the battery
zUse the dedicated battery charger; otherwise, the battery may be
zStop using the battery and disconnect it from the mains supply before connecting or
disconnecting cables.
zKeep your hands dry when connecting or disconnecting
zDo not stamp, pull, drag, or excessively bend the c
damaged, causing malfunction of the battery.
Do not use the damaged or deteriorating pow
zDo not disassemble the battery without permission.
zDo not store the battery at atemperature of 45°C or above or dispose of the battery in
a fire. Otherwise, the battery may explode.
zKeep the battery from collision and sharp objects.
Do not scratch or abrade the shell of the battery. Otherwise, the fallen coating may
lead to battery abnormalities (such as short-circuit) and b
zDo not connect a metallic object such as the key to the positive and negative
terminals of the battery. Otherwise, a short circuit may occur, or bodily injury such
as burns is caused due to excessive heat of th
odor, immediately
Then, contact the
After opening uct packaging, check each item against the following checklist.
Contact the s there are any discrepancies.
the prod
upplier if
No. Item Quantity
1 Battery 1
2 Charger 1
3 AC power cable 1
4 User Guide 1
2

3 Overview
3.1 Introduction
The backup battery unit is a lithium ion battery for indoor use only. It provides the
backup power solution for multiple ONTs and its input voltage is 11.1 VDC. The backup
zrmal, the battery is in the backup state, and the charger
zwitches
e ONT.
battery unit works as follows:
When the mains supply is no
supplies power to an ONT.
When the mains supply fails due to force majeure, the battery immediately s
from the backup state to the working state, and supplies power to th
The following figure shows the appearance of the backup battery unit.
The backup battery unit consists of three components: battery (including the battery
monitoring cable), charger, and AC power cable.
3

3.2 Connector and Port
3.2.1 Battery Connector and Port
The battery provides one connector and two ports, as shown in the following figure.
DC IN
DC OUT BBU
Table 3-1 Functions of the battery connector and ports
Connector/Port Function
DC OUT
connector A DC output connector, connected to the power input port of an ONT.
BBU port A battery monitoring port.
DC IN port A DC input port.
3.2.2 Charger Connector and Port
The charger provides one connector and one port, as shown in the following figure.
Table 3-2 Functions of the charger connector and port
Connector/Port Function
Connector A DC output connector.
Port An AC input port, connected to the AC power cable.
The figures shown in this document may differ from the actual backup battery unit, but the
difference does not affect the functions of the backup battery unit. Please rest assured when
using the backup battery unit.
4

3.3 Battery Monitoring Cable
The battery also provides a battery monitoring cable with SIP-2.5mm/4P connectors at
both ends. The battery monitoring cable is used to monitor the working status of the
backup battery unit in real time.
Battery Status LED Information Monitored
on the OLT
The battery is being
charged. The CHG LED is on (green). Charge
The battery is
discharging. The DIS LED is on (green). Discharge
The battery is
fully-charged. The CHG LED and the DIS LED are both off. Holding
3.4 LED
The battery has three LEDs, as shown in the following figure.
ALARM DIS CHG
Table 3-3 Indications of the LEDs
LED Name Color Status Indication
Always
on The battery is abnormal:
zThe battery is over-charged.
zThe battery temperature exceeds
the rated operating temperature.
ALARM Alarm LED Red
Off The battery is normal.
Always
on The battery is discharging.
DIS Discharge
LED Green
Off The battery is not discharging.
Always
on The battery is being charged.
CHG Charge
LED Green
Off zThe battery is not being charged.
zThe battery is fully charged.
The battery is fully charged if either of the following conditions is met:
zThe CHG LED is off when the charger is in the working state
zThe voltage of the DC OUT connector is equal to or higher than 12 V
5

4 Installation Guide
4.1 Fastening the Battery
The battery can be placed onto a workbench or mounted onto a wall.
There are two mounting holes at the back of the battery, with a spacing of 90 mm. To
Step 1 wdriver. Ensure that the two
Step 2 the two mounting holes at the back of
wall-mount the battery, do as follows:
Secure two M3 mounting screws into the wall using a scre
screws have the same spacing as the two mounting holes.
Place the battery onto the mounting screws through
the battery, as shown in the following figure.
The following figure shows the battery mounted on the wall.
6

4.2 Connecting Cables
The following figure shows the cable connections of the backup battery unit.
Before connecting cables of the backup battery unit, switch off the power of the ONT.
1 ONT 2 Battery
3 Charger 4 AC power cable
5 Power plug 6 Power socket
7 DC power cable 8 Battery monitoring cable
To connect the cables, do as follows:
Step 1 Place the battery onto a workbench or mount it onto a wall.
Step 2 Connect the DC output connector of the battery to the power input port of the ONT.
Step 3 Connect the monitoring cable connector of the battery to the BBU port of the ONT.
Step 4 Connect the DC output connector of the charger to the DC IN port of the battery.
Step 5 Connect one end of theAC power cable to theAC input port of the charger.
Step 6 Connect the other end (power plug) of the AC power cable to the power socket.
7

5 Troubleshooting
Fault Troubleshooting Method
The CHG LED is off when the
charger charges the battery. y.
zCheck whether the battery is fully charged.
zCheck whether the charger matches the batter
zCheck whether the mains supply is normal.
The backup battery unit fails to
work and the DIS LED is off after
zCheck whether the cables are properly connected.
the mains supply is cut.
zCheck whether the battery is exhausted.
The battery buzzer generates
beeps. zttery expires. If yes, replace the
battery immediately.
Check whether the ba
The OLT fails to monitor the
status of the backup battery unit. zher the battery monitoring cable is properly
zCheck whether the ONT works normally.
Check whet
connected.
8

6 Technical Specifications
Charge
50 mm x 35 mm
C, 50–60 Hz
DC
rent: 2.5 A
Battery Specifications
r Specifications
zDimensions (width x depth x height): 105 mm x
zRated input voltage: 100–240 VA
zRated output voltage: 13.8 V
zRated output cur
Model Rated Weight Input
Voltage/
Rated
Output
Dimensio
ns (Width
x Depth x
Number of
Full Charge
and
Discharge
Cycles (in
Normal Us
Capacity
Current Voltage
Height)
e)
About
0.25 kg
HW-Li2Ah 2 Ah
HW-Li4Ah 4 Ah 0.45 kg
V/2.5 A 1VD C x
50 mm
at least 300
About
13.8 11. 150 mm x
100 mm
Other S
temperature: 0°C to +45°C
pecifications
zOperating
The ideal operating temperature ranges from +20°C to +30°C. When the operating
e only.
z(fully-charged): at most three months (2 Ah battery) or six months (4
zOperating altitude: 0–3000 m
temperature is lower than 0°C, the battery can discharg
zOperating humidity: 5%–95% (non-condensing)
Storage time
Ah battery)
9

Copyright © Huawei Technologies Co., Ltd. 2011. 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.
Issue: 01 (2011-06-30)
Part Number: 31010GDE

Warranty Card
Thank you for choosing Huawei Technologies Co., Ltd. – a leading telecom solution
provider. To get better services, please read this warranty card carefully, fill in the
required information and preserve this card in good condition.
Your Name.
Address/Postal Code.
Telephone.
Product Type.
Product Serial Number.
Purchase Date.
Invoice Number.
Dealer Name.
Dealer's Address/Telephone
Preserve well. No reissue.
Dealer's Seal:

Limited Warranty
Subject to the exclusions contained below, Huawei Technologies Co., Ltd. (Huawei for short)
warrants its access terminals ("Products") to be free from defects in materials and
workmanship under normal consumer usage for one year from the date of purchase of the
product ("Warranty period"). During the warranty period, a Huawei authorized service
partner shall remedy defects in materials and workmanship free of charge.
Special Notice:
a. The standard AA NiMH rechargeable batteries are not convered by the warranty.
b. The warranty card shall be applicable only after being stamped by the dealer.
c. The warranty card must be preserved in good condition and free of any scratch or
alteration.
d. To claim such service for defects that are not included in the following exclusion terms, the
warranty card and the invoice that records the product serial number shall be presented to a
Huawei authorized service partner.
Exclusions:
In any of the following cases, the warranty card becomes unenforceable or inapplicable
without prior notice:
a. The defects are caused by improper handling in transportation and assembly.
b. The defects are caused by the fact that the product is dismantled or altered by anyone that
is not from a Huawei authorized service partner.
c. The defects are caused by the fact that the product is used in a harsh environment that is not
suitable for the operation of the product.
d. The defects are caused by any force majeure including but not limited to fire, earthquake,
lightning and tsunami.
e. The defects are caused by the fact that the product is used or handled improperly, roughly
or not as instructed in the applicable User Guide.
f. The normal wear and tear, including but not limited to the normal wear and tear of the shell
and the power module, shall not be covered by the limited warranty.
g. The warranty card is altered or illegible, or the product serial number recorded on the
warranty card is inconsistent with the actual one imprinted or labeled on the product.
In any case that is not covered by this limited warranty or should the warranty expire,
Huawei shall charge for the service(s) claimed for the products if the product is still
remediable.
Huawei preserves the right for interpretation of this limited warranty.
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Address: Administration Building, Huawei Technologies Co., Ltd., Bantian, Longgang
District, Shenzhen, P. R. China
Postal Code: 518129
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