Avaya XBU48, Installation And Operator'S Manual, Page: 5 / 20

Avaya
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XBU48 Site Preparation, Installation and Operator’s Manual
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700071244 Issue 3
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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