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2.7 Connections
• Connecting to the RS-485
The dome camera can be controlled remotely by an external device or control system,
such as a control keyboard, using RS-485 half-duplex serial communications signals.
• Connecting Video Output connector
Connect the video output (BNC) connector to the monitor or video input.
• Connecting Alarms
A1,A2,A3,A4 (Alarm Input 1,2,3,4)
You can use external devices to signal the dome camera to react on events. Mechanical or
electrical switches can be wired to the A1,A2,A3,A4 (Alarm Input 1,2,3,4) and G (Ground)
connectors.
See Chapter 3 — Program and Operation for configuring alarm input.
G (Ground)
NOTE: All the connectors marked G or GND are common.
Connect the ground side of the alarm input and/or alarm output to the G (Ground) connector.
AO (5VTTL Alarm Output)
The dome camera can activate external devices such as buzzers or lights. Connect the device
to the AO (Alarm Output) and G (Ground) connectors.
See Chapter 3 — Program and Operation for configuring alarm output.
• Connecting the Power of Dome
Connect power of 24VAC or 12VDC 1A for the dome camera.
When using a 12VDC adapter, connect the positive (+) pole to the '+' position and
the negative (-) pole to the '-' position.
Use Certified/Listed Class 2 power source only.
• Connecting the Power of Heater & Fan
Connect the power of 24VAC 2A for the heater & fan.
Use certified / Listed Class 2 power source only.
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