Lucent Technologies MERLIN LEGEND Release 6.0 System Programming And Maintenance Manual page 88

MERLIN LEGEND Communications System Release 6.0
System Programming and Maintenance (SPM) 555-660-140
System Programming and Maintenance
Upgrading the System
NOTE:
The default barrier code and any programmed barrier codes from Release
2.1 and earlier are carried over to Release 3.0 and later with no change
and the barrier code length is four (4). It is the responsibility of the system
manager to change the barrier code length and the barrier codes if so
desired.
Upgrade Procedure
NOTE:
The system upgrade procedure must follow the order of the steps shown
below.
Install SPM.
! 
To upgrade the system to Release 6.0, you need to install (or upgrade to)
Version 6.15 of SPM. See "Installing the SPM Software."
Back up your system programming.
! 
This step creates a file containing system programming information. See
"Backup."
Convert your back up file.
! 
This step converts the backup file created in Step 2.
See "Convert" earlier in this book.
Turn off AC power switches on the control unit in the following order:
! 
(1) Basic carrier
(2) Expansion carrier 1, if present
(3) Expansion carrier 2, if present
Replace the processor module (when upgrading from Release 2.1 and
! 
earlier).
Issue 1
February 1998
Page 74