Reserve power – Nortel Networks 1000M User Manual
Page 23
Reserve power
23
Reserve power
CAUTION
Service Interruption
If the NTDK70 AC power supply is powered down while it is
operating on DC reserve power from a battery backup unit, the
Cabinet system cannot be powered up again until AC power is
restored. Be careful not to open the circuit breaker, either on
the battery backup unit, or on the NTDK70, while the system is
operating on battery backup.
Three types of reserve battery power are supported:
•
The NTAK75 battery box (shown in
Figure 4 "NTAK75 battery box" (page
) provides a minimum of two hours of reserve DC power.
•
The NTAK76 battery box (shown in
Figure 5 "NTAK76 battery box" (page
) provides a minimum of 15 minutes of reserve DC power.
•
An Uninterruptible Power Supply (UPS) for continuous AC power supply.
Note: Customer-supplied battery backup units can be connected to the
cabinets using an NTAK28 Junction Box.
Nortel Communication Server 1000
Communication Server 1000M and Meridian 1 Small System Installation and Commissioning
NN43011-310
01.04
Standard
Release 5.0
13 May 2008
Copyright © 2008, Nortel Networks
.