Cable shielding
4.2 Connecting the cable shielding for ET 200SP
Designing interference-free controllers
Function Manual, 06/2014, A5E03461486-AB
19
Connecting the cable shielding for ET 200SP
A special shield design has been developed for the shield connection of the signal lines of
the ET 200SP distributed I/O system. The connection element for the cable shield consists of
a shield terminal.
If the front connector is located in the module, the interference currents that occur are
diverted by the connection element via BaseUnit and mounting rail to the ground.
The shield terminal is plugged into a mount of the BaseUnit. The shield terminal allows the
low-impedance application of cable shields with minimum installation times. There is no need
for the otherwise standard connection of the cable shield at the cabinet entry.
The following figure shows a BaseUnit with shield terminal and shield support.
Shield support with flat plug for terminal sockets
Figure 4-3 BaseUnit with shield terminal
For more information on mounting the shield terminal, refer to the "Connecting cable shields"
chapter of the system manual ET 200SP Distributed I/O System
(http://support.automation.siemens.com/WW/view/en/58649293).
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