ADLINK ND-6067 - Manual (Page 21)

19
1.9. Shielding
In case of increased interference, a shielded bus cables is recommended to use
for wiring between module and modules. In addition, a shielding also should be
done for the cable of power supply and for the signal cables.
Some experiences and recommendations are concerning for shield connection.
1. The shield should be connected with protective earthing at each bus
connection.
2. The shield should be applied additionally several times along the course of the
cable.
3. The Computer should be applied the shield directly to the appliance or to
separate shield rails.
DA
T
A
+
DA
TA
-
Earthing Point
RS-485 Connection Cable
NuDAM Module
Isolation
braided shield