Advantech RS-485 user manual Communication Wiring

Quick Start Example

network with long cables, we advise the use of thicker wire to limit the line voltage drop. In addition to serious voltage drops, long voltage lines can also cause interference with communication wires.

+	+Vs
POWER SUPPLY
+10~+30 VDC	GND
-
	INIT*
	COM
	DATA+
	DATA-

Figure A-1 Power supply connections

It is advisable to use standard coding colors for the power lines:

+Vs (R) Red

GND (B) Black

Communication Wiring

It is recommended that shielded, twisted-pair cables that comply with the EIA RS-485 standard be used with the ADAM-5000 network to reduce interference. Only one set of twisted-pair cables is required to

A-4 ADAM-5000