Avaya XBU48 Setup guide

Site Preparation,
Installation and Operator’s Manual
for
48 Vdc Extended Battery Cabinet (XBU48)
for use with
Series 1
1500–2000 VA
Uninterruptible Power Systems
www.powerware.com/avaya

Class A EMC Statements
FCC Part 15
NOTE This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the
user will be required to correct the interference at his own expense.
ICES-003
This Class A Interference Causing Equipment meets all requirements of the Canadian Interference Causing Equipment
Regulations ICES-003.
Cet appareil numérique de la classe A respecte toutes les exigences du Reglement sur le matériel brouilleur du Canada.
EN 50091-2
Some configurations are classified under EN 50091-2 as “Class-A UPS for Unrestricted Sales Distribution.” For these
configurations, the following applies:
WARNING This is a Class A-UPS Product. In a domestic environment, this product may cause radio interference, in which
case, the user may be required to take additional measures.
Avaya and the Avaya logo are trademarks of Avaya Inc. and may be registered in certain jurisdictions.
ECopyright 2001–2006 Avaya Inc. All rights reserved. No part of this document may be reproduced in any way
without the express written approval of Avaya Inc.

AvayatXBU48 Site Preparation, Installation and Operator’s Manual S700071244 Issue 3 i
Table of Contents
1 Introduction 1.........................................................
UPS Model and Battery Configurations 1......................................................
XBU48 System Recharge Time 1.........................................................
XBU48 Battery Times 2................................................................
2 Installation 3..........................................................
Safety Warnings 3......................................................................
Installing the XBU48 5...................................................................
Important Safeguards 10................................................................
XBU48 Fault LED 10......................................................................
Alarm Contacts 11.......................................................................
3 Specifications 12.......................................................
4 Troubleshooting 13......................................................
Obtaining Service 14.....................................................................

TABLE OF CONTENTS
AvayatXBU48 Site Preparation, Installation and Operator’s Manual S700071244 Issue 3
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AvayatXBU48 Site Preparation, Installation and Operator’s Manual S700071244 Issue 3 1
Chapter 1 Introduction
Thank you for your purchase of the Avaya 48 Vdc Extended Battery
Cabinet (XBU48). The Avaya XBU48 is an accessory for your Series 1
(1500–2000 VA) UPS that extends the battery-backup runtimes for the
UPS.
The XBU48 is a 48 Vdc model with a charger. Up to three XBU48s can
be attached to customize the battery runtime for your application.
UPS Model and Battery Configurations
There are two important considerations you need to evaluate when
selecting the UPS model and battery configuration for your equipment:
1. Load requirements of the equipment you want to protect. Select the UPS
model that meets the power consumption requirements of the
equipment you want to protect.
2. Battery protection time. During a power failure, the UPS operates on
battery, providing time to complete your computing activities prior
to UPS shutdown. The duration of this time period is directly related
to the UPS battery configuration and the amount of load on the
UPS.
XBU48 System Recharge Time
The following table displays the estimated minimum recharge time, after
a discharge at the rated load, to return the XBU48 batteries to 90%
capacity.
Battery Time Used
1 Hour 2 Hours 4 Hours 8 Hours
Recharge Time to >90% 17 hours 20 hours 23 hours 27 hours

INTRODUCTION
AvayatXBU48 Site Preparation, Installation and Operator’s Manual S700071244 Issue 3
2
XBU48 Battery Times
The following table displays the number of cabinets required for the
number of hours of battery time.
Battery
T
i
Number of XBU48s Required for Battery Time (by UPS Load*)
Time
(in
Hours)
2000
VA
1800
VA
1600
VA
1500
VA
1400
VA
1200
VA
1000
VA
800
VA
650
VA
3.5 111111111
4.0 211111111
4.5 221111111
5.0 222111111
5.5 222211111
6.0 222221111
6.5 222221111
7.0 222222111
7.5 222222111
8.0 222222111
8.5 322222211
9.0 322222211
9.5 322222211
10.0 332222211
10.5 332222211
11.0 332222211
11.5 333222221
12.0 333322221
* Based on load power factor of 0.70.
NOTE Do not connect more than three XBU48s to the UPS.

AvayatXBU48 Site Preparation, Installation and Operator’s Manual S700071244 Issue 3 3
Chapter 2 Installation
The following sections describe the installation and physical setup of
the 48 Vdc Extended Battery Cabinet.
Safety Warnings
This manual contains important instructions for your Avaya XBU48 that
should be followed during installation and maintenance of the UPS and
batteries.
DO NOT use any other sizes or types of batteries with the XBU48.
Read all of the caution and warning statements in “Safety Warnings” of
your Avaya UPS operator’s manual before performing the installation.
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important instructions that you should follow during installation and
maintenance of the UPS and batteries. Please read all instructions before operating the
equipment and save this manual for future reference.
DANGER
Risk of electrical shock. Installation of battery cabinets must be done by trained service
personnel.
CAUTION
STo reduce the risk of fire, connect only to a circuit provided with 15A maximum branch
circuit overload protection in accordance with the National Electrical Code,
ANSI/NFPA 70.
SNever dispose of batteries in a fire. Batteries may explode when exposed to flames. In
the event of a fire involving the UPS and its batteries, use only carbon dioxide fire
extinguishers or those approved for use in electrical fire fighting.
SServicing of batteries should be performed or supervised by personnel knowledgeable of
batteries and the required precautions. Keep unauthorized personnel away from
batteries.
SNever open or mutilate batteries. Released electrolyte is harmful to the skin and eyes,
and may be extremely toxic.

INSTALLATION
AvayatXBU48 Site Preparation, Installation and Operator’s Manual S700071244 Issue 3
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SBatteries can present a risk of electrical shock or burn from high short-circuit current,
fire, or explosion from vented gases. Observe proper precautions.
SProper disposal of batteries is required. Refer to your local codes for disposal
requirements.
SBatteries can present a risk of electrical shock or burn from high short-circuit current. The
following precautions should be observed: 1) Remove watches, rings, or other metal
objects; 2) Use tools with insulated handles; 3) Do not lay tools or metal parts on top of
batteries; 4) Disconnect charging source prior to connecting or disconnecting battery
terminals.
SDetermine if the battery is inadvertently grounded. If inadvertently grounded, remove
source of ground. Contact with any part of a grounded battery can result in electrical
shock. The likelihood of such shock will be reduced if such grounds are removed during
installation and maintenance.

INSTALLATION
AvayatXBU48 Site Preparation, Installation and Operator’s Manual S700071244 Issue 3 5
Installing the XBU48
The following instructions assume you have already removed the
XBU48s from the pallets according to the unloading instructions on the
outside of the shipping box.
To install the XBU48:
1. Place the XBU48 near the operating site. The UPS should be well
ventilated and away from direct sunlight or other heat source.
NOTE It is recommended to allow a minimum of 4.5” of space from the rear of the cabinet
for proper ventilation.
2. If you are using only one XBU48 and want increased stability or a
seismic installation, remove the mounting plates from the pallet
(see Figure 1). Otherwise, skip to Step 6.
5/16” Bolts
Mounting Plates
Figure 1. Seismic Installation Mounting Plates

INSTALLATION
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3. A seismic installation of the XBU48 requires that the mounting
plates be bolted to the floor. See Figure 2 for a detailed drill and
mounting pattern.
NOTE For Zone 4, it is recommended to use 5/16” self-drill bolts and hardware with
1 5/16” minimum embedment for 3000PSI-strength concrete. Refer to your local building
codes for seismic mounting requirements.
13.50”
Minimum
from Wall
8.50”
7.50” TYP
0.44”
1.563”
13.00”
13.00”
Ø0.375” Mounting Holes
7.60”
from Front
of Units
Front of Unit
Figure 2. Seismic Installation Mounting Pattern
4. Using customer-supplied bolts, attach the mounting plates to the
floor.
NOTE The floor mounting bolts are customer-supplied and should fit the 0.375” diameter
mounting holes on the mounting plates.
5. Using the 5/16”bolts removed when unloading the cabinet from its
pallet, resecure the XBU48 to the mounting plate.
6. Verify that the UPS is turned off.

INSTALLATION
AvayatXBU48 Site Preparation, Installation and Operator’s Manual S700071244 Issue 3 7
7. Align the U-shaped mounting bracket with the two holes closest to
the front of the XBU48 and secure using two of the countersink
screws from the start-up kit.
8. Align the L-shaped mounting bracket with the two holes closest to
the rear of the XBU48 and secure using two of the countersink
screws from the start-up kit.
NOTE The vertical section of the L-bracket must be to the left of the UPS.
9. Place the UPS on top of the XBU48, aligning the mounting brackets
with the holes on the sides of the UPS chassis. Secure the brackets
to the UPS using the six supplied screws.
Figure 3. Maximum Configuration (UPS with Three XBU48s)

INSTALLATION
AvayatXBU48 Site Preparation, Installation and Operator’s Manual S700071244 Issue 3
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10. Verify that the circuit breaker on all XBU48s is in the OFF (O)
position (see Figure 4).
11. Plug the XBU48 battery output cord into the battery connector on
the UPS rear panel. All battery connectors are polarized to prevent
incorrect connection.
12. If additional XBU48s are to be used, plug the battery output cord of
the second cabinet into the battery connector of the first cabinet.
Follow this procedure for each additional XBU48.
13. Plug the detachable power cord into the charger AC input
receptacle.
14. Plug the other end of the power supply cord into a grounded,
three-wire, AC receptacle that has been wired in accordance with
NEC specifications or national wiring rules.
For 240V installations, use a NEMA 6-15P/IEC 320-C13, 6-ft,
detachable power supply cord that is UL-listed. Wire gauge should
be #16 AWG and the insulation type should be begin with SJ, SE, or
SO.
NOTE DO NOT plug the AC cord from the charger into any of the UPS receptacles.
NOTE The wall outlet must be within two meters of the equipment and accessible to the
operator.

INSTALLATION
AvayatXBU48 Site Preparation, Installation and Operator’s Manual S700071244 Issue 3 9
Battery Circuit Breaker
Battery Connector
Battery Output Cord
Unit Rating Label
Charger
Charger Air
Exhaust
Charger AC
Input
Receptacle
Breaker Tie
Alarm Contacts
Charger LED
Power Switch
Figure 4. XBU48 Rear View

INSTALLATION
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15. Verify that the charger LED on the XBU48 rear panel is illuminated,
indicating the charger is on.
If the charger LED is not on, turn the power switch on the XBU48
rear panel to the ON position.
16. Remove the breaker tie from the circuit breaker on all XBU48s.
17. Switch the circuit breaker to the ON ( | ) position on each XBU48.
18. The UPS may now be turned on according to your Avaya UPS
operator’s manual.
Important Safeguards
SDo not connect or disconnect XBU48s while the UPS is operating in
Battery mode.
SWhen connecting or disconnecting XBU48s, verify the circuit breaker
on all XBU48s is in the OFF (O) position.
XBU48 Fault LED
The Fault LED on the front panel of the XBU48 illuminates to indicate an
over temperature condition. The Fault LED remains lit until the system
cools, typically a few hours.
Fault LED
Figure 5. Fault LED

INSTALLATION
AvayatXBU48 Site Preparation, Installation and Operator’s Manual S700071244 Issue 3 11
Alarm Contacts
A set of normally open alarm contacts is provided on the rear panel
of the XBU48. The contacts will close if there is an overload or
overtemperature condition.
Optional: To use the alarm contacts, connect alarm leads to the two
contacts on the alarm contact strip. The alarm contact is rated at
1A/30 Vac or 1A/60 Vdc.
User Connection
Points
Normally Open Contact
Inside the XBU48
Figure 6. Alarm Contact Strip

AvayatXBU48 Site Preparation, Installation and Operator’s Manual S700071244 Issue 3
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Chapter 3 Specifications
Table 1. 48 Vdc Extended Battery Cabinet Technical Specifications
Battery Type Valve-regulated lead acid (VRLA); Hawker 12HR-300 or C & D Dynasty UPS12-270
Expected Life 8 years @ 20-hr rate, 25°C(77°F)
Nominal Battery String Voltage 48 Vdc
Nominal Float Voltage 2.3V/cell
Recharge Current 5A per string, 10A total
Charger AC Input 120/240 Vac, 7/4A, 50/60 Hz (625 VA nominal); automatically selected
IEC 320-C13 input connector
Circuit Protection Circuit breaker protection
Alarm Contact 1A/30 Vac or 1A/60 Vdc
Dimensions
(WxDxH)
17.2”x 24.6”x 28.3”
(43.7 x 62.5 x 71.9 cm)
Weight Shipping weight: 750 lb (341 kg)
Installed weight: 665 lb (302 kg)
Operating Environment Temperature: 10°Cto40°C(50°F to 104°F)
Recommended use: 25°C(77°F); For each 8°C(15°F) rise in temperature,
the battery loses approximately 50% of its rated life.
Humidity: 10 to 95% (noncondensing)
Altitude: -300 to +10,000 ft
Safety Conformance UL 1778, CAN/CSA C22.2, No. 107.1-M91, EN 50091-1-1 and IEC 60950
Agency Markings UL, cUL
EMC (Class A) FCC Part 15, EN 50091-2, ICES-003
Table 2. Part Number
XBU48 Model Avaya Comcode
48 Vdc 700404486

AvayatXBU48 Site Preparation, Installation and Operator’s Manual S700071244 Issue 3 13
Chapter 4 Troubleshooting
The 48 Vdc Extended Battery Cabinet is shipped with the battery
charged. However, it may lose some of its charge during shipping and
storage. You can use the XBU48 immediately after unpacking, but it
may not provide the full-rated backup time during a power failure. Upon
initial startup, the XBU48 may need to operate for approximately
24 hours to fully charge the battery and provide full battery-backup time.
Condition Possible Cause Action
System does not provide
the expected backup time.
Battery circuit breakers are
in the OFF (O) position.
Switch the battery circuit breaker to the ON ( | ) position
for all connected XBU48s.
p
p
The XBU48 is not properly
connected to the UPS.
Verify that the XBU48 cords are connected.
Low battery capacity. Allow the battery to charge for 24 hours, then retest.
Protected equipment power
requirements exceed UPS
capacity.
Reduce load, then retest.
Charger LED is not on. XBU48 connections are not
secure.
Verify that the XBU48 is plugged in and turned on.
Charger has failed. Contact your Avaya service representative.
XBU48 Fault LED is on. The XBU48 internal
temperature is too high.
Allow the unit to cool. If the condition persists, contact
your Avaya service representative.
Alarm contact is closed. The XBU48 internal
temperature is too high or
there is an overload
condition.
Allow the unit to cool or reduce the load. If the condition
persists, contact your Avaya service representative.
Battery Service
The battery may be fully
discharged.
Plug the UPS and XBU48 into a power outlet for 24 hours
to charge the battery. After charging the battery, press
and hold the button for 3 seconds; then check the
indicator.
If the indicator is still on, see “UPS Maintenance” in
your Avaya UPS operator’s manual.
The battery is not connected
correctly.
Check the battery connections. Call your Avaya service
representative if the problem persists.

TROUBLESHOOTING
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Obtaining Service
The troubleshooting chart covers most of the difficulties you may
encounter during normal operations. If you have any questions or
problems with your UPS, call your Avaya service representative or the
appropriate telephone number on the service label of your UPS.
Please have the following information ready when you call:
SModel number
SSerial number
SVersion number (if available)
SDate of failure or problem
SSymptoms of failure or problem
SCustomer return address and contact information

*164201322C*
164201322 C