Rs485; About Rs485; Connecting Rs485 - PrimeVOLT PV-5000T-U Installation & Operation Manual

8. RS485

8.1 About RS485

A typical RS485 connection is as below.
Some Noteworthy Points:
1. Wires between devices and computer shall be twisted.
2. Maximum allowable wire length is 1000 meters.
3. The terminal-end device should have a terminal resistor.
4. Due to multiple connections, each individual device should be
assigned an IP address as to send/receive.

8.2 Connecting RS485

Wiring Diagram

Connecting to device or computer
with RS485 interface
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