SEP 2005 MODEL 1000
SUPPLEMENTAL WIRING GUIDE - SERIAL COMMUNICATIONS
A-4
A.2 RS-232 CONNECTION FROM GC CONTROLLER TO PC
A.2.1 DB-9 Serial Port of GC to DB-9 Port of PC
To make an RS-232 serial connection between one of the DB-9 serial ports of the GC, and a PC with
DB-9 serial port, you may be able to use a "straight-through" serial cable, terminated as DB-9 male
/ DB-9 female. This will work if the PC has a male DB-9 serial port, and its pin assignments are
identical to those found on a typical DB-9 serial port of an IBM PC.
The necessary "straight-through" serial cable can be obtained from most computer products
suppliers, so custom-building a cable normally is not necessary. Wiring and signal path are
illustrated as follows (see Figure A-3).
Figure A-3. GC DB-9 Port to PC DB-9 Port
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