Alarm I/O Connection - Orion PNVR204 4CH User Manual

User's Manual PNVR200 series

Connecting cameras directly to a general switching hub requires camera connected to a separate power
supply.

A switching hub connected for extending transfer range of a single channel should be connected to one
camera only.
2.4.7.

Alarm I/O Connection

To connect the alarm input signal
Connect the signal line of an alarm input device such as sensor to the rear [ALARM IN] port.
1. While pressing and holding the [A1] or [A2] port button in the rear bottom of the NVR, insert the alarm signal
cable in the hole under the button.
2. Insert the grounding wire in the [GND] port.
3. To ensure secure connection, release the button and pull out the wire to check if it's not pulled out.
4. To remove the wire, pull it out while holding the upper button.
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