ICP DAS USA 7000 user manual I-7520AR Pin Assignment and Specifications

2.4 I-7520AR:

2.4.1 Pin Assignment and Specifications:

7520AR: RS-232 to RS-422/485 Converter

• Protocol: RS-422/485

• Connector: plug-in screw terminal block

• Speed: “Self Tuner” inside, auto switching baud rate, from 300 to 115200 BPS

• 256 modules max in one RS-485 network without repeater

• 2048 modules max in one RS-485 network with repeater

•Isolation voltage: 3000V

• Isolation site: RS-422/485

• Repeater request: 4,000 feet or over 256 modules

• Power requirements: +10V to +30VDC Power consumption: 2.2W(Max)

2.4.2 Block Diagram:

7000 Bus Converter User Manual (version 1.2,Feb/2003, 7PH-006-10) --------------- 19