Communications System - AT&T MERLIN LEGEND Release 3.1 Installation Manual

Completing the Upgrade
Completing the Upgrade
1 Perform a frigid start (System Erase) to ensure that all system
programming is returned to default values.
Use
twice
See Maintenance and Troubleshooting for more information on System Erase.
2 Convert the backup file .
This converts the backup file created in Step 2 to Release 4.0 format. See the
Convert menu option in System Programming and Maintenance (SPM) for
details.
3 Restore system programming; this puts the system in an idle state, and it
cannot be used for the duration of the procedure. Refer to "Restoring
from the System Programming Diskette" in Chapter 7 for more
information.
Use version 4.15 or higher of SPM and restore the file you converted in
Step 5.
4 If applicable, program new features.
See Chapter 2 , Programming with SPM in System Programming for a list of
new features to be programmed.
Upgrading from the MERLIN II

Communications System

To upgrade from the MERLIN II Communications System to Release 4.0,
follow the steps below.
1 Install SPM.
Install (or upgrade to) version 4.15 or higher of SPM.
2 Remove the control unit housing.
See "Installing the Control Unit" in Chapter 2 if you need instructions.
9–16
Upgrading the System
from the SPM Maintenance menu:
00 (Line 5, left button)