AT&T MERLIN LEGEND Release 3.1 System Programming Manual page 129

Upgrading the System
Upgrade Procedure
IMPORTANT:
The system upgrade procedure must follow the order of the steps shown below.
1 Install SPM.
To upgrade the system to Release 4.0, you will need to install (or upgrade to)
Version 4.15 of SPM. See "Installing the SPM Software."
2 Back up your system programming.
This step creates a file containing system programming information. See
"Backup."
3 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.
4 Replace the processor module (when upgrading from Release 2.1 and earlier).
a. Unplug the interface cords from the SPM and SMDR printer ports on the processor
module.
b. Remove the processor module from Slot 0.
c. Install the Release 4.0 processor module in Slot 0.
d. Plug the interface cords into the SPM and SMDR printer ports on the processor
module.
5 Insert the forced installation memory card into the PCMCIA interface slot on the
processor module.
6 Turn on the AC power switches on the control unit in the following order:
(1) Expansion carrier 2, if present
(2) Expansion carrier 1, if present
(3) Basic carrier.
7 Convert your backup file to Release 4.0 format.
This procedure converts the backup file created in Step 2. See "Convert."
8 Restore your system programming.
The system is forced idle and cannot be used during this procedure. See
"Restore."
Programming with SPM
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