80XX Series H.264 Digital Video Recorder User Manual ………………………………………………….V1.0
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5.1.3 The definition of buttons and connectors on rear panel
Item
Physical connector
Connector description
1
POWER input
DC 19V/4A
2
Power switch
host power switch
3
Video output
Two video output for connecting TV or monitor (BNC)
4
Video input
For connecting analog video signal input (BNC)
5
Audio Input
For connecting audio signal
Alarm Input
I/O alarm input, 4 for 4CH DVR and 8 for 8CH DVR
Alarm Output
I/O output for alarm
RS485
RS 485 for connecting PTZ
RS232
For connecting PC
6
+12V
Power supply for DC relay and the current is 100MA
(make sure short circuit can not happen)
7
Network
For connecting Ethernet
8
VGA output
For connecting VGA monitor
9
USB2.0
Copy video record via USB2.0