Connecting The Cable Screening - Aastra 415 System Manual

Installation
4. 3. 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.
Communica-
tion server
Fig. 21 Tree structure principle
94
(Main) distribution
board
Socket-outlets
No earth
X
loops
Aastra 415/430 as of R3.2
syd-0344/1.6 – R3.2 – 09.2014