MERLIN LEGEND Communications System Release 6.0
System Programming
555-660-111
Issue 1
February 1998
Programming with SPM
Page 2-13Connecting the PC
2
Connecting the PC 2
There are three ways to connect the PC to the control unit. Choose the method
below that is most useful for your installation.
■ Direct local connection
■ Local modem connection
■ Remote modem connection
Direct Local Connection 2
For a direct local connection, you must connect the PC to the system
programming jack. This is the lower modular RS-232 jack on the processor
module, as shown in Figure 2–1
. (The upper jack is reserved for the SMDR
printer.)
To connect a PC more than fifty feet from the control unit, see Figure 2–2
.
For direct local connections, the system supports speeds of 1,200 and 2,400 bps.
NOTE:NOTE:NOTE:
You must use a direct local connection to program in surrogate mode.
Figure 2–1. Direct Local Connection
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PROCESSOR
System
Programming
Jack
Serial
Communications
Port
355AF
Adapter
D8W
RS-232
