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Rs-485 connector definition – OpenEye CM-512 Installation Manual User Manual

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RS-485 Connector Definition

The dome camera uses the RS-485 interface to communicate with a connected
control device. Connect a control keyboard to the speed dome using the terminal
block. OpenEye recommends using CAT 5 cables for RS-485 communication with
a maximum length of 4000 feet (1219 meters) for 24-gauge wire. If the total cable
length exceeds 4000 feet, use a repeater to maintain the signals. Refer to the table
below for pin definition and wiring.

Connector

Pin Number

Definition

1

R-

2

GND

3

R+

4

T-

5

T+