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III. Installation and Connection
Attention: Please read the Manual carefully before installation and connection, for any incorrect
cable connection may cause permanent damages to the units. Make sure power is switched off
before connection and all communication cables are screened twisted pair. All communication
cables should avoid high-voltage cables or other jamming sources.
Figure for Keyboard Connection
RS485
input outlet
RS485
output outlet
Keyboard
Power outlet
B
A
B
A
DVR mainframe
R485converter
R232outlet
R485+
R485-
Dome Camera
RS485 outlet
R485+
R485-
