VDH-DXC836 Hardware Manual
9
The alarm output of the DVR can not be connected with high-power
load (no more than 1A). In the output circuit, be careful about the
excessive current that may cause damage to the relay. When using
high-power load, extra relays are needed.
RS-485 connection
1.
Connect RS-485 cable of the speed dome to the RS-485 interface of DVR,
pay attention to the positive and negative signals.
2.
Connect the video output cable of the speed dome to the DVR video
input
