ICP DAS USA 7000 PCI-7520AR Pin Assignment and Specification, Terminal Wire RS-485 Wire RS-422

2.5 PCI-7520AR Pin Assignment and Specification:

CN1
1
6
2	RXD
7	TXD
3
8
4
9	GND
5
DB9M FEMALE
CN2		CN2	RX+
5		5
9		9	RX-
4		4	RX+
8		8	RX-
3	D-	3
7		7	TX-
2	D+	2	TX+
6	D-	6	TX-
1	D+	1	TX+
DB9S MALE		DB9S MALE
RS-485 ( D+, D- )		RS-422 ( RX+, RX-, TX+, TX- )

CON2: RS-485/422 DB9 Male Connector

Terminal	2-wire RS-485	4-wire RS-422
1	DATA+	TX+
2
3	Not Connect
4	Not Connect	RX+
5
6	DATA-	TX-
7
8	Not Connect	RX-
9

The PCI-7520AR is exactly the same as 7520AR except for the PCI interface. It is designed for easy installation.

7000 Bus Converter User Manual (version 1.2,Feb/2003, 7PH-006-10) --------------- 20