User’s Manual
29
3.2.6 DH-XVR5816S-4KL-I2-LP/DH-XVR7816S-4KL-X-LP-V2
Rear panel
Table 3-16 Rear panel description
1 Audio output port Outputs the analog audio signal to the devices such as the sound box.
2 Video output port
Connect to video output devices such as TV.
3
Audio input port
(MIC IN)
Tow-way talk input port which receives
output from the devices such as microphone, pickup.
4
Audio output port
(MIC OUT)
Tow-way talk output port which outputs the analog audio signal to
the devices such as the sound box.
5 Audio input port
Receives the analog audio signal output from the devices such as
microphone.
6
Alarm input port 1–
16
Four groups of alarm output 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, make
sure that the device and the NVR have the same ground.
1–5 (NO1–NO5;
C1–C5; NC5)
Five groups of alarm output ports. (Group 1: port NO1–
C1,Group 2:port NO2–C2,Group 3:port NO3–C3, Group 4:port
NO4–C4, Group 5: port NO5, C5, NC5). These ports output alarm
signal to the alarm device. Make sure that power supply to the
external alarm device.
NO: Normally open alarm output port.
C: Alarm output public end.
NC: Normally closed alarm output port.
RS-485
communication
port
You can connect 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.
Four-wire full-
duplex RS-485 port
(T+, T-, R+, R-)
Four-wire full-duplex 485 port. T+ and T- is the output wire; R+ and R-
is the input wire.