Installation
Note:
In the case of an indirection connection make sure that the communication server’s earthing wire does
not form any earth loops with the earthed cable screenings of the installation cables leading up to the
(main) distribution frame. The cables should be kept as short as possible and laid out in parallel.
4.4.2 Connecting the cable screening
When using shielded installation cables also use shielded RJ45 connectors. In this way the shielding of the
installation cables is automatically connected with the housing of the communication server and therefore
with the building earth.
Note:
Connect the cable screens to one another at the splitting point only. Observe the tree structure
principle to prevent earth loops.
Figure 18: Tree structure principle
Release 7.1
System Manual for Mitel SMB Controller 98
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