Elmo ESD-370 user manual Alarm Pin Definition, 2.8 RS-485 Connector, Cable Color

User’s Manual

2.7Alarm Pin Definition

The alarm pins are serviceable for connecting alarm in- and output devices. Following lists the definition of alarm pin on the 22-pin connector located on the bottom of the dome camera.

Pin	Cable Color	Definition
2	White	ALM NO
4	Black	ALM NC
6	Green	ALM COM
11	Green/Black	ISOG
12	Purple	ALM-1
13	Gray	ALM-3
14	Red	ALM-2
15	Blue	ALM-4
16	Blue/White	ALM-5
17	Brown/White	ALM-6
18	Red/White	ALM-7
19	Purple/White	ALM-8
20	Black/White	ALM GND

2.8RS-485 Connector

RS-485 is the interface that communicates the dome camera and its control device. Please connect control keyboard to speed dome through the terminal block. The recommended cables for RS-485 communication are CAT 5 cables; maximum cable length for over 24-gauge wire is 4000 feet (1219 meters). If the total cable length is over 4000 feet, using a repeater to enlarge the signals is recommended.

Definition	Cable Color
T+ (D+)	Yellow
T- (D-)	Green
R+ (D+)	Brown
R- (D-)	Orange

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