Installation Instructions

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Siemens Desigo Room automation - Engineering, mounting and installation CM111043en_14
Smart Infrastructure Installation box / panel for TRA 2020-10-30
Strain relief of cables is done on the outside of the installation box.
Cable screens for screened/shielded wiring must be installed as close as possible
to the cabinet inlet on its metal structure and connected to the building's ground
system.
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/shield
connections.
Attaching cables
in
the
cabinet
10762z 019
I/O module
Support rail
Run screen/shield to the
module, but do not
connect it to the module!
Cable fastening rails
Screen/shield connection
Screen/shield rail
Cable screened/shielded
Cable unscreened/
unshielded
The screen rail cannot be used to relieve cable strain.
Screen
/shield
connection with screen connection terminals
10762z020
Screen connection terminals
10762z021
Screen/shield rail support rail
10762z022
Avoid screen/shield braid.
Attaching cables to the
installation box
Attaching cables in the
cabinet