MERLIN LEGEND Communications System Release 6.1
System Programming and Maintenance (SPM)
555-661-140
Issue 1
August 1998
Programming with SPM
Page 97
Surrogate Mode Programming
then taken to the new installation site and used with the Restore option
to provide complete system programming for a new communications
system.
You do not “select” surrogate mode programmingyou enter it
automatically under the following conditions:
■ The PC is connected to the lower RS-232 port on a control unit
(direct local connection).
■ Only the processor and power modules are connected.
Once you enter surrogate mode programming, you must follow the
sequence of procedures shown below.
■ At the service location, perform the following:
1. System Erase
2. Program the Boards
3. System Programming
4. Backup
■ At the installation site, perform a Restore.
While you are in surrogate mode, the Pass-Thru and Password options
are not available.
NOTE:
Surrogate mode is available only through the local programming
port. You cannot access surrogate features through the system
programming console.