Dahua IR High Speed Dome Camera User Manual page 18

5.3.2 Connection of Exterior Cables
Cable Application
power supply for
Power cable the unit
485 cable Controlling the IR
High-speed
Dome
Video Cable video signal
Earth Connecting
connecting earth
port lightening proof
5-strand Alarm input
cable
2-strand Alarm output
cable
When connecting, make sure the polarity of RS485 controlling cable is
◆
correct: A: RS485 positive, B: RS485 negative.
If wrongly connected, the IR High-speed Dome Camera will be out of
◆
Connecting Objects
IR High-speed
dome---
power supply adaptor
IR High-speed dome
--- controlling device
IR High-speed dome
---monitoring device
the IR High-speed dome
for --- the earth
Detctor---
IR High-speed dome
IR High-speed
dome---
alarm bell
- 17 -
Remarks
Inner positive, outer
negative
Green (Positive),
white(Negative)
Inner positive, outer
negative
Black cable
Black (Alarm input
public terminal)
Yellow (the 1st channel
alarm input)
nd
Green (the 2 channel
alarm input)
rd
Blue (the 3 channel
alarm input)
White (the 4th channel
alarm input)
Brown (alarm output
public terminal)
Grey (alarm output
terminal)