PD 3950 Wiring Diagram
USB
The PD 3950 can be
connected to any standard USB port or USB HUB.
The USB cable delivered together with the module must be
used to connect the PD 3950 to the PC.
P-NET RS485
It is recommended to use the 2 x twisted pair or 1.5 x
twisted pair cable type. This offers the best noise immunity and the most
convenient installation.
- 2
x twisted pair: the second pair is connected to the 'S' terminal. The
cable shield is connected to the shield clamp.
- 1.5
x twisted pair (3-wire cable): the 3rd wire is connected to the ‘S’
terminal. The cable shield is connected to the shield clamp.
1.5 x twisted pair (3-wire cable)
When using bus cables with 1.5 x twisted pairs (3 twisted
wires), the wire interconnecting 'S' terminals must be connected to ground at
one point only. This avoids the 'S' reference potential to be free floating.
1 x twisted pair: the shield is connected to the 'S'
terminal.
To avoid loose threads from the shield interfering within
the module is it advisable to install a separate wire from the shield clamp
to the 'S' terminal.
P-NET wiring
P-NET shield connection
Related topics
P-NET Installation
Guide
Ordering Information
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