GE 994-0089 user manual Front Maintenance Port, » To connect your computer to the D400

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4.10Front Maintenance Port

The serial communications port on the front panel of the D400 provides a local connection with the D400 to perform the initial setup of the D400 and to carry out maintenance and diagnostic procedures. The front maintenance port provides a direct serial connection to a PC using a serial null modem cable (GE Part No. 977-0529/72), which is supplied with the D400.

See section “6.1 Connecting to the D400 for the First Time” for more information on setting up communications with the D400.

»To connect your computer to the D400:

Connect the supplied serial null modem cable (GE Part No. 977-0529/72) to your computer’s serial communications port and to the D400's front communications port.

D400 Front Serial Port DB-9 Pin Out

Pin #	Signal
1	DCD
2	RX Data
3	TX Data
4	DTR
5	GND
6	DSR
7	RTS
8	CTS
9	Not Connected

Minimal Required Connection

The minimal cable connection required to establish successful communication between your PC and the D400 is as follows:

PC Pin #	D400 Pin #	Signal
9-Pin Female	9-Pin Female
	(w/o Converter)
2	3	TX
3	2	RX
5	5	GND

62994-0089–1.00–2, General