GE 994-0089 user manual RS-232 Connections, Number Function Signal Flow

GE Energy

4.3RS-232 Connections

The D400 accepts connections to RS-232 type devices through the RS-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 and Port 2) each with a DB-9 connector.

The required RS-232 cable is a serial null modem, DB-9F to DB-9M cable. The cables must be shielded and DB-9 connector covers must provide EMC shielding (e.g. metalized plastic or die-cast metal covers).

See section “3.3 RS-232 Adapter” for configuration options.

»To connect RS-232 type devices to the RS-232 Adapter, use the following cable connection:

6	1	1	6
7	2	2	7
8	3	3	8
	5	5
9	5	5	9

Relay

RS-232 Port DB-9 Connector Signal Definitions

Pin	DTE (default)			DCE
Number	Function	Signal Flow	Function		Signal Flow
1	DCD	IN	DCD		IN
2	RXD	IN	TXD		OUT
3	TXD	OUT	RXD		IN
4	DTR	OUT	DSR		IN
5	Signal GND	-	Signal GND		-
6	DSR	IN	DTR		OUT
7	RTS	OUT	CTS		IN
8	CTS	IN	RTS		OUT
9	Not connected	-	Not connected		-

48994-0089–1.00–2, General