The Grand Tour 23
RS-485
communication port
Connects to the control devices such as speed dome PTZ.
RS-485_A port is connected by the cable A and RS-485_B is
connected to the cable B.
Table 3-16
3.2.7 DH-XVR7416L-4KL-X/DH-XVR5432L-X/DH-XVR5416L-X
Figure 3-18
Receives audio signal output from the devices such as
microphone.
Audio input port
(MIC IN)
Tow-way talk input port which receives analog audio signal
output from the devices such as microphone and pickup.
Audio output port
(MIC OUT)
Tow-way talk output port which outputs the analog audio signal to
the devices such as the sound box.
Outputs audio signal to the devices such as the sound box.
Connects to video output devices such as TV.
Connects to analog camera to input video signal.
Four groups of alarm input ports (Group 1: port 1 to port 4; Group
2: port 5 to port 8; Group 3: port 9 to port 12; Group 4: port 13 to
port 16). These ports receive the signal from the external alarm
source. There are two types: NO (Normally Open) and NC
(Normally Closed).
When your alarm input device is using external power, please
make sure the input device and the DVR connect to the same
ground.