2.1.2 Rear panel
4CH
Item
Interface
Description
1
VIDEO-IN
4ch video input
2
AUDIO IN
4ch audio input
3
HD-OUT
HDMI output
4
A/V OUT
AUDIO and VIDEO output
5
VGA
VGA monitor
6
NETWORK
RJ45 for internet
7
USB
First USB for backup or upgrade system of DVR; Second
USB for mouse
8
ON/OFF
Power supply switcher
9
DC-12V
Power adaptor port
10
ALARM IN
：
1 2 3 4 alarm input port
RS-485
：
A, B
ALARM OUT: N1 alarm output port, every channel connect
GND
、
OUT
、
COM;
every two channel OUT, COM port is for GND;
8CH
Item
Interface
Description
1
VIDEO-IN
8ch video input
2
AUDIO IN
8ch audio input
3
HD-OUT
HDMI output
4
VGA
VGA monitor
