IC Realtime 1U POE NVR Series, User Manual, Page: 22 / 291

2.3.2 Alarm Input Port
Connect the positive end (+) of the alarm input device to the alarm input port (ALARM IN 1–16) of the
NVR. Connect the negative end (-) of the alarm input device to the ground end (
) of
the NVR.
Figure 2-79 Alarm input port
● There are two alarm input types: NO/NC. Alarm input type must be set in the recorder’s
alarm menu.
● When connecting the ground port of the alarm device to the NVR, use any of the ground
ports.
● Connect the NC port of the alarm device to the alarm input port (ALARM) of the NVR.
● When there is peripheral power supplying for the alarm device, please make sure it is
grounded with the NVR.
2.3.3 Alarm Output Port
● Peripheral power will be needed to supply the external alarm device. It is recommended
not to exceed 1 amps of power.
● The Alarm type for Alarm-out is typically NO (Normally Open).
● Some models will have a This can be configured and will show up as the last
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