29
SN
Name
SN
Name
1
Alarm input/alarm output
2
HDMI port
（
Reserved port. Right now
system does not support HD decode
card.
）
3
Power port
4
HDMI port
5
eSATA port
6
USB port
7
SAS port
8
Video VGA output
9
Network port
10
RS485 port
11
RS232 port
12
Audio input port
13
Audio output port
2.3 Alarm Connection
Please refer to the following sheet for alarm input and output connection.
There are two alarm input types for you to select: normal open (NO) and normal close (NC).
1. Alarm input
a. Please make sure alarm input mode is grounding alarm input.
b. Grounding signal is needed for alarm input.
c. Alarm input needs the low level voltage signal.
d. Alarm input mode can be either NC (normal Open) or NO (Normal Close)
e. When you are connecting two NVRs or you are connecting one NVR and one other device, please use
a relay to separate them.
2. Alarm output
The alarm output port should not be connected to high power load directly (It shall be less than 1A) to
avoid high current which may result in relay damage. Please use the co contactor to realize the
connection between the alarm output port and the load.
3. Please make sure the front-end device has soundly earthed.
Improper grounding may result in chip damage.
2.3.1
Alarm input and output details
2.3.1.1 DNA 3U NVR /DNA 4K 3U/DNA 4K S2 3U Series
User may refer to the following sheet
X
for alarm input and output information. See Figure 2-20.
Содержание DNA3500 Series
Страница 2: ...DNA Network Video Recorder User s Manual V 5 2 0...
Страница 123: ...110 Figure 3 98 Figure 3 99 Figure 3 100...
Страница 135: ...122 Figure 3 116 Click draw button to draw the zone See Figure 3 117...
Страница 139: ...126 Figure 3 120 Click Draw button to draw a zone See Figure 3 121 Figure 3 121...
Страница 144: ...131 Figure 3 126 Click draw button to draw the zone See Figure 3 127...
Страница 158: ...145 Figure 3 139 Figure 3 140...
Страница 159: ...146 Figure 3 141 Figure 3 142...
Страница 160: ...147 Figure 3 143 Figure 3 144...
Страница 162: ...149 Figure 3 146 Figure 3 147...
Страница 187: ...174 Figure 3 173 Figure 3 174...
Страница 255: ...242 Figure 4 53 Figure 4 54...
Страница 256: ...243 Figure 4 55 Figure 4 56...
Страница 279: ...266 Figure 4 90 Figure 4 91...
Страница 286: ...273 Figure 4 100 Figure 4 101...
