20
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.
2.4.1
Alarm Port
2.4.1.1 NVR616-4KS2 Series
You can refer to the following sheet
X
for alarm input and output information. See Figure 2-15.
Figure 2-15
Icon
Note
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)
G
GND cable.
A/B
The A/B cable to control the RS485 devices. It is to connect to
c
ontrol devices such as PTZ dome camera. 120Ω should be parallel
connected between A, B lines on the far end to reduce reflection and
guarantee the signal quality.
Tx and Rx
RS232 port. Tx is the data output cable and the Rx is the data input
cable.
2.4.1.2 NVR608-4KS2 Series
You can refer to the following sheet for alarm input and output information. See Figure 2-16.
Summary of Contents for NVR608-32-4KS2
Page 1: ...I Network Video Recorder User s Manual V6 0 0 ZHEJIANG DAHUA VISION TECHNOLOGY CO LTD...
Page 121: ...105 Figure 3 92 Figure 3 93...
Page 144: ...128 Figure 3 111 Figure 3 112 Figure 3 113...
Page 157: ...141 Figure 3 126 Figure 3 127...
Page 159: ...143 Figure 3 129 Click draw button to draw the zone See Figure 3 130 Figure 3 130...
Page 162: ...146 Figure 3 133 Click Draw button to draw a zone See Figure 3 134 Figure 3 134...
Page 167: ...151 Figure 3 139 Click draw button to draw the zone See Figure 3 140...
Page 185: ...169 Figure 3 157 Figure 3 158...
Page 186: ...170 Figure 3 159 Figure 3 160...
Page 189: ...173 Figure 3 164 Figure 3 165...
Page 224: ...208 Figure 3 199...
Page 311: ...295 Figure 4 56 Figure 4 57...
Page 317: ...301 Figure 4 62 Figure 4 63...
Page 318: ...302 Figure 4 64 Figure 4 65...
Page 343: ...327 Figure 4 101 Figure 4 102...
Page 352: ...336 Figure 4 115 Figure 4 116...
Page 372: ...356 Figure 4 144 Note For admin you can change the email information See Figure 4 145...
