Alarm Input And Output Port; Alarm Relay Specifications; Bidirectional Talk; Device-End To Pc-End - Amcrest NVR11H Series User Manual

2.3.3 Alarm input and output port


There is peripheral power supplying to the external alarm device.

An overload may result in NVR damage. Please refer to the following relay specifications for detailed
information.

2.3.4 Alarm relay specifications

Model:
Contact
Material
Rating
(Resistance
Load)
Insulation
Surge voltage
Length of open
time
Length of close
time
Longevity
Temperature

2.4 Bidirectional talk

2.4.1 Device-end to PC-end

Device Connection
Please connect a microphone to the first audio input port in the device rear panel. Then connect
headphones or spearkers to the audio output port on the PC.
Login to the Web and then enable the corresponding channel real-time monitor.
Please refer to the following interface to enable bidirectional talk. See Figure 2-7.
Listening Operation
JRC-27F
Silver
Rated switch capacity
Maximum switch power
Maximum switch voltage
Maximum switch current
Between contacts with same
polarity
Between contacts with different
polarity
Between contacts and winding
Between contacts with same
polarity
3ms max
3ms max
Mechanical
Electrical
-40ºC ~+70ºC
30VDC 2A, 125VAC 1A
125VA 160W
250VAC, 220VDC
1A
1000VAC 1minute
1000VAC 1minute
1000VAC 1minute
1500V (10×160us)
50×106
MIN
200×103
Figure 2-7
(3Hz)
(0.5Hz)
MIN
10