Serial Output - GE Optica Operator's Manual

Chapter 2. Installation

2.4.3 Serial Output

The Serial Output connector is located at the lower left of the rear panel of the bench-mount unit, and the bottom panel
of the wall-mount unit. The output provides RS-232 serial communications between the unit and a terminal or a PC
running in terminal emulation mode.
The connector is a standard 9-pin D connector. For connection to another serial device, the cable is wired as shown in
Table 1 below. For a basic interface without handshaking, only pins 2, 3 and 5 (RX, TX and GND) on the Optica
connector are needed. Pin connections are given for both 25-pin and 9-pin devices.
The baud rate, format of the data, number of stop bits, number of data bits, and parity can all be programmed using the
menus.
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Table 1: Serial Output Wiring Connections
Optica Connector
Pin Connection
2 (RX)
3 (TX)
4 (DTE)
5 (GND)
6 (DSR)
7 (RTS)
8 (CTS)
25-Pin Device
Pin Connection
3 (TX)
2 (RX)
6 (DSR)
7 (GND)
20 (DTE)
4 (CTS)
5 (RTS)
9-Pin Device
Pin Connection
3 (TX)
2 (RX)
6 (DSR)
5 (GND)
4 (DTE)
8 (CTS)
7 (RTS)
Optica™ Operator's Manual