Nortel Meridian 1 Option 11C Upgrade Manual page 39

Upgrade a two-cabinet system with metal cable to Option 11C
2 Log in to the system and perform a data dump on the existing
system.
Note: You must do this step to make sure you back up any changes
made after the last data dump. This step is a precautionary measure;
if the upgrade fails, you can revert to the earlier system.
a Load overlay program 43 (LD 43).
b Enter command EDD .
c Let the data dump finish, then exit LD 43 by entering
3 Load overlay program 22 (LD 22) and print the ISM parameters.
Make a note of the existing parameters.
Type SLT at the REQ prompt and press <CR> to print the ISM
parameters. The ISM parameters are also on the existing software
cartridge.
4 Perform one of the following steps to extract the customer data
from the existing system:
— If you are using the Database Upgrade Tool, ignore this step and
go to Step 5 on page 39.
— If you are using the CCBR feature and a PC, perform the following
steps.
a Log in to the existing Option 11.
b Load overlay program 43 (LD 43) and enter XBK to start a
configuration data backup.
c At the INFO prompt, enter a name for the file (up to 128
characters).
d After the backup finishes, enter XVR. Check the backed up
data.
e Exit LD 43 by entering
Note: Refer to the Option 11 Customer Configuration Backup and
Restore Guide (553-3011-330) for details about the CCBR feature.
5 Disconnect the power from the cabinet.
Set the circuit breaker switch on the front of the power supply unit in
the cabinet to OFF.
If equipped with reserve battery power, set the circuit breaker switch
inside the reserve battery power unit to OFF.
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Option 11C and 11C Mini
Page 39 of 224
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Upgrade Procedures Guide