Nortel Meridian 1 Manual page 79

22 Perform the appropriate step to restore power in each Core/Network
module.
• For AC-powered systems, simultaneously set the circuit breaker on
the MPDU in both Core/Network modules to ON (up position).
• For DC-powered systems, simultaneously set the switch on the
module power supply in both Core/Network modules to ON (up
position).
Note: If power to both Core/Network modules is restored
simultaneously, the CMDUs will still be synchronized.
23 After the system initializes, reenter system configuration data into the
customer database, if required, in the following sequence:
• Configure network loops to match loop types and loop numbers of
the current configuration.
• Configure I/O devices to reflect the current configuration.
• Reenter customer data blocks. System options and features must
reflect the current configuration.
• Configure station data blocks.
• Configure route data blocks.
• Configure trunk data blocks.
• Configure remaining system configuration records.
• Verify system operation before adding new equipment.
• Configure new equipment and functions, if any.
24 Verify the system by using test procedures described in Meridian 1
system installation procedures (553-3001-210) and X11 input/output
guide (553-3001-400). Clear any faults discovered during testing.
25 Perform the postconversion procedure as outlined in Software
conversion procedures (553-2001-320).
The Meridian 1 X11 release 21 option 61C is now operational. Install all
module covers to complete the upgrade.
Upgrade system installation Upgrading to Meridian 1 system options
SL-1 L, LE, and N system upgrades 3-23