Reserve Power - Nortel Meridian 1 Succession 1000M Installation And Configuration Manual

Page 26 of 562 Cabinet system equipment

Reserve power

553-3011-210 Standard 1.00
CAUTION — Service Interruption
If the NTDK70 or NTDK78 ac/dc 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 or NTDK78, while the
system is operating on battery backup.
Three types of reserve battery power are supported:
• The NTAK75 battery box (shown in Figure 4 on
minimum of two hours of reserve dc power.
• The NTAK76 battery box (shown in Figure 5 on
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.
October 2003
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