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QSL Support - Serial Comm Port RS232/RS422 Pin Outs

IO Port and Interrupt Configuration Switch:

The following table contains the pin description on 9 pin and 25 pin D-type connectors.
Please note it is Data Terminal Equipment (DTE) assignment.

DM9P	DB25P	Usage
1	8	RXD - (RS422/485 Only)
2	3	RXD +
3	2	TXD +
4	20	TXD - (RS422/485 Only)
5	7	GND
6	6	RTS - (RS422/485 Only)
7	4	RTS +
8	5	CTS +
9	22	CTS - (RS422/485 Only)

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