Siemens Desigo TRA Mounting And Installation Manual page 19

Attaching cables to the
installation box
Attaching cables in the
cabinet
Siemens
Building Technologies
Strain releaf of cables is done on the outside of the installation box.
Cable screens for screened wiring must be installed as close as possible to the
cabinet inlet on its metal structure and connected to the building's potential
equalization.
The following illustrations display the correct connections for shielded and
unshielded cables to the screen and cable fastening rails.
Use only off-the-shelf screen terminal connections for trouble-free screen
connections.
Attaching cables in the cabinet
The screen rail cannot be used to relieve cable strain.
Screen connection with screen connection terminals
Avoid screen braid.
Mounting and installation
Installation box TRA
I/O module
Support rail
Run screening to the
module, but do not
connect it to the module!
Cable fastening rails
Screen connection
Screen rail
Cable shielded
Cable unscreened
Screen connection terminals
Screen rail support rail
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CM111043en_03
2013-02-23