71
A/B cable of the RS485 is for the A/B cable connection of the speed PTZ.
2.3.4 Alarm relay specifications
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 2-42.
Figure 2-42
Listening Operation
At the device end, speak via the speaker or the pickup, and then you can get the audio from the earphone
or sound box at the pc-end. See Figure 2-43.
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