Nortel Meridian SL-1 Supplementary Manual page 50

3-6 Upgrading from SL-1 S to Option 21
Shelf upgrades to Meridian 1 553-3001-253
• Reconnect the tagged cables to the appropriate connectors on the
faceplates of the circuit packs on the new CE shelf.
• Set the MAINT/NORM switch on the front of the QPC687 circuit
to NORM.
• Connect the ac power for the cabinet by reconnecting the
commercial ac power line cord to its receptacle (if previously
disconnected) or by setting the commercial ac power supply
circuit breaker at the service panel to ON (if previously set to
OFF).
• Set the CAB INP circuit breaker at the front of the cabinet to ON.
18 Insert the floppy disks into disk drives. A system reload (SYSLOAD)
should occur. Wait for the SYSLOAD to be completed.
19 Reestablish normal service on the system as soon as it is determined
that trunk connections can be made to an attendant console or other
suitable telephone. To restore normal service, set the line transfer
switch on the QPC84 circuit packs to OFF or 0.
• Using the appropriate overlay programs, obtain printouts of all TN
assignments and system features and compare with the printouts
obtained before converting.
20 Install cabinet covers and dispose of surplus equipment.