DVR User Manual
7
Fig 2.5 Rear Panel for 4-ch
Item
Name
Description
1
Audio in
4-ch audio inputs
2
DC 12V
Power input
3
Alarm out
1-ch relay output. Connect to external alarm.
4
GND
Grounding
5
Alarm in
Connect to external sensor1-4
6
Audio out
Audio output, connect to the sound box
7
CVBS port
CVBS video signal output
8
Spot
Connect to monitor as an AUX output channel by channel. Video would be displayed
without OSD.
9
RS485
Connect to keyboard or speed dome
10
Video in
Video input channels from 1-4
11
HDMI port
Connect to high-definition display device
12
USB port
To connect external USB devices like USB flash, USB HDD for backup or update
firmware; or connect to USB mouse
13
LAN
Network port
14
VGA port
VGA output, connect to monitor
15
Fan
For cooling the device