128
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.
2.3.4
Alarm relay specifications
Model:
JRC-27F
Material of the
touch
Silver
Rating
（
Resistance
Load
）
Rated switch capacity
30VDC 2A, 125VAC 1A
Maximum switch power
125VA 160W
Maximum switch voltage
250VAC, 220VDC
Maximum switch currency
1A
Insulation
Between touches with same
polarity
1000VAC 1minute
Between touches with different
polarity
1000VAC 1minute
Between touch and winding
1000VAC 1minute
Surge voltage
Between touches with same
polarity
1500V (10×160us)
Length of open
time
3ms max
Length of close
time
3ms max
Longevity
Mechanical
50×106
MIN
(3Hz)
Electrical
200×103
MIN
(0.5Hz)
Temperature
-40
℃
~+70
℃
2.4 Bidirectional talk
2.4.1
Device-end to PC-end
Device Connection
Please connect the speaker or the pickup to the first audio input port in the device rear panel. Then
connect the earphone or the sound box to the audio output port in the PC.
Login the Web and then enable the corresponding channel real-time monitor.
Please refer to the following interface to enable bidirectional talk. See Figure 2-82.
Figure 2-82
Listening Operation
At the device end, speak via the speaker or the pickup, and then you can get the audio from the earphone
Содержание nvr4208-8p
Страница 1: ...Dahua Network Video Recorder User s Manual V 2 7 0 ...
Страница 159: ...144 Figure 3 3 3 5 4 NVR11HS 41HS W S2 Series Please refer to Figure 3 4 for connection sample ...
Страница 160: ...145 Figure 3 4 3 5 5 NVR41HS W S2 Series Please refer to Figure 3 5 for connection sample ...
Страница 163: ...148 Figure 3 7 3 5 8 NVR42N Series Please refer to Figure 3 8 for connection sample Figure 3 8 ...
Страница 171: ...156 Figure 3 18 3 5 19 NVR78 Series Please refer to Figure 3 19 for connection sample ...
Страница 172: ...157 Figure 3 19 3 5 20 NVR78 16P Series Please refer to Figure 3 20 for connection sample ...
Страница 173: ...158 Figure 3 20 3 5 21 NVR78 RH Series Please refer to Figure 3 21 for connection sample ...
Страница 174: ...159 Figure 3 21 3 5 22 NVR70 Series Please refer to Figure 3 22 for connection sample ...
Страница 175: ...160 Figure 3 22 3 5 23 NVR70 R Series Please refer to Figure 3 23 for connection sample ...
Страница 176: ...161 Figure 3 23 3 5 24 NVR42V 8P Series Please refer to Figure 3 24 for connection sample ...
Страница 177: ...162 Figure 3 24 ...
Страница 188: ...173 Figure 4 19 Click smart add button you can see device enables DHCP function See Figure 4 20 Figure 4 20 ...
Страница 243: ...228 Figure 4 89 Figure 4 90 ...
Страница 244: ...229 Figure 4 91 Figure 4 92 ...
Страница 259: ...244 Figure 4 110 Figure 4 111 ...
Страница 260: ...245 Figure 4 112 Figure 4 113 ...
Страница 261: ...246 Figure 4 114 Figure 4 115 ...
Страница 263: ...248 Figure 4 117 Figure 4 118 ...
Страница 290: ...275 Figure 4 148 In Figure 4 148 click one HDD item the S M A R T interface is shown as in Figure 4 149 Figure 4 149 ...
Страница 355: ...340 Figure 5 55 Figure 5 56 ...
Страница 356: ...341 Figure 5 57 Figure 5 58 Figure 5 59 ...
Страница 367: ...352 Figure 5 73 Figure 5 74 ...
