9
2.3
Alarm Connection
2.3.1 Alarm Port
The alarm port is shown as below. See Figure 2-3.
Figure 2-3
Icon
Function
1
～
4
ALARM1
～
ALARM4. The alarm becomes activated in the
low level.
N1,N2,C1,C2
Two N activation output groups. (On-off button)
GND
A/B
485 communication port. They are used to control devices
such as PTZ. Please parallel connect 120T
Ω between A/B
cables if there are too many PTZ decoders.
2.3.2 Alarm input port
Connect the positive end (+) of the alarm input device to the alarm input port (ALARM IN 1
～
4) of the
NVR. Connect the negative end (-) of the alarm input device to the ground end ( ) of the NVR.
Note
When connect the ground port of the alarm device to the NVR, you can use any of the GND ports
(
).
Connect the C 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 earthed with
the NVR.
2.3.3 Alarm input and output port
There is peripheral power supplying for the external alarm device.
In case overload may result in NVR damage, please refer to the following relay specifications for
detailed information.
A/B cable of the RS485 is for the A/B cable connection of the speed PTZ.
Содержание K-NL408KT/G
Страница 1: ...Network Disk Recorder User s Manual Model No K NL408KT G Version 1 0 1 ...
Страница 24: ...18 3 4 Connection Sample Please refer to Figure 3 1 for connection sample Figure 3 1 ...
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Страница 129: ...123 Figure 4 117 In Figure 4 117 click one HDD item the S M A R T interface is shown as in Figure 4 118 ...
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Страница 151: ...145 Figure 4 140 Step 2 Click Add user button Enter Add user interface See Figure 2 141 ...
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Страница 162: ...156 Please input your username and password ...
Страница 163: ...157 Figure 5 3 ...
Страница 168: ...162 Figure 5 11 You can click this icon to display or hide the PTZ control platform 3D Intelligent Positioning Key ...
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