31
1
，
2
，
3
，
4
，
5
，
6
，
7
，
8
，
9
，
10
，
11
，
12
，
13
，
14
，
15
，
16
ALARM 1 to ALARM 16. The alarm becomes active in low voltage.
1-ON C
，
2-ON C
，
3-ON C
，
4-ON C
，
5-ON C
，
6-ON C
，
7-ON C
，
8-ON C
Eight groups of normal open activation output (on/off button)
GND cable.
A/B
The A/B cable to control the RS485 devices. It is to connect to
control devices such as PTZ dome camera. 120
Ω
should be parallel
connected between A, B lines on the far end to reduce reflection and
guarantee the signal quality.
2.3.1.3 DNA 4U NVR Series
User may refer to the following sheet for alarm input and output information. See Figure 2-22.
Figure 2-22
Icon
Note
1
～
4
ALARM 1 to ALARM 4. The alarm becomes active in low
voltage.
NO1 C1
，
NO2 C2
，
NO3 C3
，
NO4
C4
Four groups of normal open activation output (on/off
button)
GND
2.3.2
Alarm Input and Output Port
Please refer to the following sheet for more information.
Grounding alarm inputs. Normal open or Normal close type)
Please parallel connect COM end and GND end of the alarm detector (Provide external power to the
alarm detector).
Please parallel connect the Ground of the NVR and the ground of the alarm detector.
Please connect the NC port of the alarm sensor to the NVR alarm input(ALARM)
Use the same ground with that of NVR if you use external power to the alarm device.
Summary of Contents for DNA3500 Series
Page 2: ...DNA Network Video Recorder User s Manual V 5 2 0...
Page 123: ...110 Figure 3 98 Figure 3 99 Figure 3 100...
Page 135: ...122 Figure 3 116 Click draw button to draw the zone See Figure 3 117...
Page 139: ...126 Figure 3 120 Click Draw button to draw a zone See Figure 3 121 Figure 3 121...
Page 144: ...131 Figure 3 126 Click draw button to draw the zone See Figure 3 127...
Page 158: ...145 Figure 3 139 Figure 3 140...
Page 159: ...146 Figure 3 141 Figure 3 142...
Page 160: ...147 Figure 3 143 Figure 3 144...
Page 162: ...149 Figure 3 146 Figure 3 147...
Page 187: ...174 Figure 3 173 Figure 3 174...
Page 255: ...242 Figure 4 53 Figure 4 54...
Page 256: ...243 Figure 4 55 Figure 4 56...
Page 279: ...266 Figure 4 90 Figure 4 91...
Page 286: ...273 Figure 4 100 Figure 4 101...
