Instruction manual

Basic System Management Procedures
8-55
System Programming Maintenance
To initiate the Pass-Thru, follow the steps below:
You cannot program the SPM application on the IS II/III PC because
the remote call (from your SPM PC) uses the IS II/III PC’s COM1 port;
therefore, the system programming jack cannot be used for system
programming. For the same reason, a user at the IS II/III PC end of
the connection cannot use SPM while your Pass-Thru is in effect. If
use of SPM is attempted, the user at the IS II/III end sees the
following message:
PRE-EMPT IN PROGRESS
Please try again.
To initiate Pass-Thru, establish a modem connection between the
SPM PC and the control unit.
If the IS II/III PC does not respond to the Pass-Thru request from the
control unit (for example, because the PC is turned off), you see the
following message:
Pass-thru failed.
Please try again.
If the connection between the control unit and the IS II/III PC fails, the
connection between the control unit and the SPM PC is dropped. You
see the following message:
Pass-through Session
unexpectedly terminated.
Please press Enter
to continue.
When you press
1, you return to the SPM Main menu.