User`s manual

2.3.2 Back panel of 9-channel DVR
CAM1
CAM2
CAM3
CAM4
CAM5
CAM6
CAM7
CAM8
CAM9
SPOT OUT
VIDEO OUT
S VIDEO
AUDIO OUT
AUDIO IN 1
AUDIO IN 2
AUDIO IN 3
AUDIO IN 4
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34
4123
5
6
7
8
9
ALARM IN
ALARM OUT
COM
+
-
GND
LAN
USB
VGA
RS-232
RS-485
Back panel of 9-channel DVR
The difference between 9-channel and 16-channel is as following:
 Video input: The video input channel of 9-channel is nine.
 Alarm input: The alarm input channel of 16-channel is sixteen.
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