unscrew the bottom screw to install cables.
Power&A/V Cable
Alarm Cable
Microphone Cable
Speaker Cable
Insert the plug, and pull these cables through out from the bottom of bracket.
For the alarm cable
Brown
Red
DI 1
DI 2
Hook up the safety buckle, and screw the two screws to fix the power box.
Orange
Yellow
DI 3
DI 4
Green
Blue
GND
NC
LAN Cable
Reset Button
Black
White
COM
NO