OPTO 22 G4LC32, User Manual

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G4LC32 User’s Guide
Connections to a Host PC
RS-485 Wiring to Host PC
4-wire Mode Using an AC24AT or AC422AT
If you are using an Opto 22 RS-422 card (Model AC24AT or AC422AT), the cable will have a male, 9-pin ‘D’ shell
connector at the PC end and a pluggable terminal block on the controller end. The cable is wired as shown in the
diagram below.
2-wire Mode Using an AC37
If you are using an Opto 22 AC37, the cable will have a male, 9-pin ‘D’ shell connector at the PC end and a pluggable
terminal block on the Mistic controller end. See the diagram below for wiring.
COMMUNICATIONS AND CABLES
5-6