AT&T MERLIN LEGEND Release 3.1, System Programming Manual, Page: 87 / 887

Connecting the PC
Programming with SPM
2–9
Connecting the PC
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
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 1200 and 2400 bps.
NOTE:
You must use a direct local connection to program in surrogate mode.
CAUTIO N
POWER
ON
OFF
AG INPUT AG INPUT
FR FR
GND GND
Turn of
f powe r befo
re inserting or
removing
modules
408 GS/LS 44GS or LS Outside Lines/ 8 Analog
Telephones
(A
TL)
408
008 MLX 8 MLX (Digital)
Telephones
012
PROCESSOR
System
Programming
Jack Serial
Communications
Port
355AF
Adapter
D8W
RS-232
Figure 2–1. Direct Local Connection