33
SenTRI4 fire system
Network cable screen continuity
These split cables
MUST BE of the same type.
Panel 1
Panel 2
Panel Earth
Screen continuity
connection at the joint
NOTE:
the joint
Panel 2.
The cable screens are not
connected to earth
at
or at
THE JOINT
Ensure a good screen continuity joint exists where there is a split cable.
DO NOT mix cables of different types on the same leg of a network,
as this will create impedance imbalance and disruption to data
communication.
How to minimise cross talk
When using standard MICC cable in a network the different legs of
the cable must not be closely placed together, as this will cause
signal crosstalk which results in communication failure.
There are three practical ways of overcoming the crosstalk problem:
use a twisted-core MICC cable
put a ferrous screen between the cables (ie in the two runs of steel conduit)
maintain a distance between the network cables of at least 50mm
Summary of Contents for SenTRI2
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