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What's the standard for RS485 CCTV Camera Pan-tilt Control

Posted: Wed Mar 31, 2010 12:00 pm
by admin
RS485 is a 120 ohm half-duplex communication.

Maximum can support 32 devices on a bus.

Based on using 24V WG (0.56mm) twisted-pair, the maximum transmission distance as

2400 bps - 1800 m
4800 bps - 1200 m
9600 bps - 800 m