Alarm Relay Specifications; Two-Way Talk; Device-End To Pc-End - Dahua NVR52-4KS2 Series User Manual

2.3.4 Alarm Relay Specifications

Model: JRC-27F
Material of the touch
Rating (Resistance
Load)
Insulation
Surge voltage
Length of open time
Length of close time
Longevity
Temperature

2.4 Two-way Talk

2.4.1 Device-end to PC-end

Procedure
Step 1 Connect the speaker or the pickup to the first audio input port on the device rear panel.
Step 2 Connect the earphone or the sound box to the audio output port in the PC.
Step 3 Log in to the web and then enable the corresponding channel real-time monitor.
Step 4 Enable two-way talk.
Table 2-51 Alarm relay specifications
Silver
Rated switch capacity
Maximum switch power
Maximum switch voltage
Maximum switch currency
Between touches with same
polarity
Between touches with different
polarity
Between touch and winding
Between touches with same
polarity
3 ms max
3 ms max
Mechanical
Electrical
-40 °C to +70 °C
86
User's Manual
30 VDC 2 A, 125 VAC 1 A
125 VAC, 160 W
250 VAC, 220 VDC
1 A
1000 VAC 1 minute
1000 VAC 1 minute
1000 VAC 1 minute
1500 V (10×160 μs)
50 × 106 MIN (3 Hz)
200 × 103 MIN (0.5 Hz)