16
07/2015
TCS TürControlSysteme AG, TCS Hotline Germany: hotline@tcsag.de
Subject to technical changes.
FAX: +49 (0) 41 94/ 9 88 129
PI_ISW3330-uk 2 A
General information on the conduit in TCS audio systems
The conduit is determined by structural conditions and is limited only by its length.
Observe when selecting the cable length: the
loop resistance must not exceed 8
Ω (table).
To keep the max. permitted loop resistance, the
cross-section of the wire can be doubled, that
means, for one wire two lines are used (illustra-
tion). The lines must be twisted.
When using shielded lines: connect the shields
with each other and connect one side to ground
(b-wire) at the power supply
optional strand or star shaped wiring
Table: loop resistances
cable length
in m
cable diameter
0.6 mm
0.8 mm
loop resistance
in Ω
10
1.28
0.71
20
2.55
1.43
30
3.83
2.14
40
5.10
2.86
50
6.38
3.57
60
7.65
4.29
70
8.93
5.00
80
5.71
90
6.43
100
7.14
150
10.71
R/L W/Y W/G W/Br W|B/W