COP-USA CD55HD - Manual (Page 23)

Operation Manual for Intelligent Speed Dome Camera
22
Figure 22
In such circumstances the factory recommends the usage of DR-HB16 RS485 distributor.
The distributor can change the star configuration connection to the mode of connection
stipulated in the RS485 standards. The new connection achieves reliable data
transmission (refer to Figure 23).
120
120
120
1#
2#
16#
. .
.
.
MC2080
A+
B-
Figure 23
Appendix :
Wire Diameter and Transmission Distance Comparison Chart
Wire diameter (mm)
Transmission
Distance
feet(m)
Power [VA]
0.8000 1.000 1.250 2.000
10 28386 451137 716218 1811 551
20 14142 22568 358109 905275
30 94 28 15045 23872 603183
40 70 21 112 34 17954 452137
50 56 17 90 27 14343 362110