ICP DAS USA 7000 user manual Host Computer 7520

2.7 Basic Wire Connection for I-7520:

RS 485 wire connection.
GND ￿￿ Ext. Power GND		GND
	11		10
+VS ￿ ￿ Ext. Power 10V-30V
	12	+VS	9
Data-￿￿ Data-
		Data-
	13		8
Data+￿￿ Data+
	14	Data+	7
RS 232 wire connection	15	Init*	6
Host pin2 (RXD) ￿￿ 7520_Pin2 16			5

Host pin3 (TXD) ￿￿ 7520_Pin3			17			4
Host pin5 (GND) ￿￿ 7520_Pin5 18						3
			19	7000		2
Host Computer			20			1
			7520		GND	10
	1		7520R		+VS	9
6						8
	2
7				1		7
	3				6
8				2		6
	4				7
9				3		5
	5				8
				4		4
					9
Male 9-pin D-sub RS-232C				5		3
Com 1/2/3/4 or		Signal			Date-	2
UART port
					Date+	1
		Female 9-pin D-sub

GND

24V

External power

RS-485

Signal

7000 Bus Converter User Manual (version 1.2,Feb/2003, 7PH-006-10) --------------- 22