For An Upgrade Done Using A Programmed Software Daughterboard (Option 11C) - Nortel Meridian 1 Option 11C Upgrade Manual

Upgrade Option 11C/11C Mini software to a new release
For an upgrade done using a programmed Software
Daughterboard (Option 11C)
The following list reviews the steps you follow to revert to the previous
database:
1 Shut down the system.
2 Install the old daughterboard.
3 Power up the system.
The following procedure describes how to revert to the previous release of
software if you used a programmed Software Daughterboard to perform the
upgrade.
Procedure 21
Revert to previous software procedure
1 Disable all DCHs using overlay program 60 (LD 60).
2 Disable all AML links using LD 48.
3 Power down the system.
4 Change the Software Daughterboard, replacing the one used to
deliver the upgrade with the original one.
5 Power up the system.
—————————— End of Procedure ——————————
Option 11C and 11C Mini
Page 189 of 224
Upgrade Procedures Guide