29
Figure 8-2
8.4
RS485 Bus FAQ
Phenomenon
Possible Reasons
Solution
Speed dome
can run self-
diagnosis but I
can not control
it.
Host address(baud rate) and
speed dome address(baud rate)
are not match;
Positive and negative end of
RS485 Bus are misconnected;
Connection cable is loose
；
RS485 Bus connection are cut
off;
Modify host or speed dome setup
；
Switch RS485 positive end and
negative end
；
Fix connection cable firmly
；
Replace RS485 Bus.
I can control
the speed
dome but is not
smooth
RS485 Bus connection are not
good
；
One RS485 bus is off
；
The distance between host and
speed dome is too far
；
Parallel connected too much
speed domes.
Connect RS 485 Bus again
；
Replace RS485 Bus
；
Add terminal matching resistance
；
Add RS485 distributor.
Summary of Contents for DH-SD6AL245U-HNI-IR
Page 1: ...IR Intelligent Speed Dome Installation Manual Version 1 0 2...
Page 18: ...10 Figure 1 14...
Page 21: ...13 Figure 2 3 2 4 Pole Mount Bracket The pole mount bracket is shown as below See Figure 2 4...
Page 22: ...14 Figure 2 4...
Page 25: ...17 Figure 3 3...
Page 31: ...23 Figure 5 3...
Page 34: ...26 Figure 6 3...
Page 39: ...31 mm Feet m w 0 8000 1 000 1 250 2 000 100 24 43 7 45 38 17 11 63 59 63 18 18 152 66 46 53...
Page 41: ...33 mm Feet m w 0 8000 1 000 1 250 2 000 100 6 11 1 86 9 54 2 91 14 91 4 54 38 17 11 63...
