Nortel Meridian 1 Option 11C Planning And Installation Manual page 105

7 Main Power hook-up.
a) Connect the external power supply, if not already done.
If this system uses a commercial AC power supply, the power
outlet should be tested to make sure that the correct voltage
is present before plugging the power cord in the outlet.
If the system uses an external commercial AC power supply,
plug the AC power cord from each cabinet into the
commercial AC power supply outlet.
If the system uses a customer-provided DC power supply,
plug the DC power cord from each cabinet into the DC power
source.
b) For AC-powered systems, set the circuit breaker on the
NTAK04 or NTDK78 AC/DC power supply in each cabinet to
ON. For DC powered systems, set the circuit breaker on the
NTAK28 circuit breaker assembly for each cabinet to ON. Set
the circuit breaker on the NTAK05 or NTDK72 DC power
supply in each cabinet to ON.
8 Set the circuit breaker on the battery backup unit to ON (if the
system has reserve power).
Note: A system equipped with the NTAK04 or NTDK78 AC/DC power
supply and a battery backup unit will continue to operate on DC
reserve power if the AC supply fails. However, if the DC reserve power
is interrupted, the NTAK04 or NTDK78 cannot be powered up again
until AC power is restored.
9 Install the System Software on Main cabinet. Refer to "System
software installation" on page 233.
10 Install the System Software on Expansion cabinet. See "Software
installation on the IP Expansion Cabinet using the preprogrammed
software daughterboard" on page 244.
Installation Procedures Page 105 of 408
Option 11C Planning and Installation Guide