Comelit 40799, Manual, Page: 14 / 48

8
2.7 Connections
Connector 1: AC+ / AC- /G /R- /R+/G
• Connecting the Power( AC+ / AC-)
Connect the power of AC 24V 1A for the dome camera.
Use certified / Listed Class 2 power supply transformer only.
• Connecting to the RS485
The dome camera can be controlled remotely by an external device or control system, such as a
control keyboard, using RS485 half-duplex serial communications signals. Connect Marked R+,
R- to Tx+ and Tx- of the RS485 control system.
Connector 2: F+ / F-
• Connecting the Power( F+ / F-) for the heater and the fan
Connect the power of AC 24V 2.2A for the heater and the fan
Use certified / Listed Class 2 power supply transformer only.
Connector 3: AL1/AL2/AL3/AL4/G
Alarm In
You can use external devices to signal the dome camera to react on events. Mechanical or
electrical switches can be wired to the AL (Alarm In) and G (Ground) connectors.
See Chapter 3 — Program and Operation for configuring alarm input.
Connector 4: COM/NC/NO
Alarm Output
The dome camera can activate external devices such as buzzers or lights. Connect the device to
the NC (NO) (Alarm Out) and COM (Common) connectors. See Chapter 3 — Program and
Operation for configuring alarm output.
Connector 5: BNC
• Connecting Video out connector
Connect the video out (BNC) connector to the monitor or video input.