２１
INSTALLATION
Alarm I/O Connection
To connect the alarm input signal
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.
To connect the alarm output signal
Connect the signal line of an alarm output device to the rear
[ALARM OUT]
port.
1. Check the relay output type of Normal Open or Normal Close before selecting a
proper type (N/O or N/C). While holding the
[N/O]
or
[N/C]
button, arrange the
alarm signal cable through the hole under the button.
N/O(Normal Open) : normally Open but switching to Close if an alarm out occurs.
GND : Insert the grounding wire.
N/C(Normal Close) : normally Close but switching to Open if an alarm out occurs.
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.
