GE 994-0089 user manual RS-232 Adapter, Configuration Options, Factory Default

GE Energy

3.3RS-232 Adapter

The RS-232 Adapter (GE Part No. 520-0207) is a standard RS-232 serial I/O adapter card that plugs into any serial communication slot (slots 1 through 8) on the D400. It contains two independently isolated RS-232 serial ports (Port 1 J3 and Port 2 J2) each with a DB-9 connector.

See section “4.3 RS-232 Connections” for typical cable connections.

Configuration Options

The RS-232 card supports the following configuration options on each port:

•DCE (Data Communications Equipment) – as a peripheral

•DTE (Data Terminal Equipment) – as a PC

•+5 V (320 mA) output

In addition, the RS-232 card is configurable to provide an IRIG-B signal (on pin 4) and Ground (on pin 6).

The signal type and pin options for each port are selectable via two sets of switches on the RS-232 card:

•Port 2 (J2) is configured by switches SW1 and SW3

•Port 1 (J3) is configured by switches SW2 and SW4

Follow instructions for setting the switches to select the appropriate functions for each port.

Factory Default

The factory default setting is DTE on each port.

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