Nortel Meridian 1 Option 11C Upgrade Manual page 89

Upgrade an Option 11E with fiber-optic cable to Option 11C
2 Log in to the system and perform a data dump on the existing
system.
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 After the data dump finishes, 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 Do one of the following 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 89.
— 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 to check the backed up
data.
e Exit LD 43 by entering
Note: Refer to the Option 11 Customer Configuration Backup and
Restore Guide for details about the CCBR feature.
5 Disconnect the power from the main and expansion cabinets.
Set the circuit breaker switch on the front of the power supply unit in
each cabinet to OFF.
If equipped with reserve battery power, set the circuit breaker switch
inside the reserve battery power units to OFF.
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Option 11C and 11C Mini
Page 89 of 224
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Upgrade Procedures Guide