MERLIN LEGEND Communications System Release 6.0
System Programming
555-660-111 Issue 1
February 1998
Programming with SPM
Page2-13Connecting the PC
2
Connecting the PC 2
There are three ways to connect the PC to the control unit. Ch oose 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 an d 2,400 bps.
NOTE:NOTE:NOTE:
You must use a direct local connection to program in surrogate mode.
Figure 2–1. Direct Local Connection
CAUTION
POWER
ON
OFF
AG INPUT
AG INPUT
FR
FR
GND
GND
Turn off
power before
inserting or
removing
modules
408 GS/LS
44GS or LS Outside Lines/
8 Analog T
elephones (ATL)
408
008 MLX
8 MLX (Digital) Telephones
012
PROCESSOR
System
Programming
Jack
Serial
Communications
Port
355AF
Adapter
D8W
RS-232