15
2.3 Alarm Connection
2.3.1
Alarm Port
The alarm port is shown as below. See Figure 2-38. The following figure is based on the another series.
Figure 2-38
Icon
Function
1
16
ALARM1
ALARM16. The alarm becomes activated in the
low level.
NO1 C1 NO2 C2 NO3 C3 NO4
C4
Four NO activation output groups. (On-off button).
NO5 C5 NC5
One NO/NC activation output group. (On-off button).
CTRL 12V
Control power output. Disable power output when alarm is
canceled. Current is 500mA.
12V
Rated current output. Current is 500mA.
GND
A/B
485 communication port. They are used to control devices
such as PTZ. Please parallel connect
120TΩ between A/B
cables if there are too many PTZ decoders.
Note
Different models support different alarm input ports. Please refer to the specifications sheet for
detailed information.
Slight difference may be found on the alarm port layout.
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.
Summary of Contents for NVR-1001U
Page 1: ...i NVR xU NVR xUD Network video recorder User s manual...
Page 32: ...23 3 4 Connection Sample Figure 3 3...
Page 87: ...147 Figure 4 74 Figure 4 75...
Page 88: ...148 Figure 4 76 Figure 4 77...
Page 94: ...154 Figure 4 82 Figure 4 83...
Page 95: ...155 Figure 4 84 Figure 4 85...
Page 96: ...156 Figure 4 86 Figure 4 87...
Page 98: ...158 Figure 4 89 Figure 4 90...
Page 136: ...196 Figure 4 136 Figure 4 137 4 14 3 1 Add Modify Group...
Page 176: ...236 Figure 5 53 Figure 5 54...
Page 177: ...238 Figure 5 55 Figure 5 56 Figure 5 57...
Page 181: ...242 Figure 5 61 Figure 5 62...
