Installation Instruction VARIODYN
®
D1 System
FB 798663.GB0 / 05.19
15
3.4.2 Specification loudspeaker cables
The following cable cross-sections (mm²) must be used for loudspeaker loop, depending on the power and cable
length:
Power
Length
100 W
200 W
300 W
400 W
500 W
100 m
0.5
0.5
0.5
0.75
0.75
200 m
0.5
0.5
0.5
0.75
1
300 m
0.5
0.75
0.75
1
1.5
400 m
0.5
0.75
0.75
1
1.5
500 m
0.5
0.75
0.75
1.5
1.5
600 m
0.5
0.75
1
1.5
1.5
700 m
0.75
1
1
1.5
2
800 m
0.75
1
1.5
2
2
900 m
0.75
1.5
1.5
2
2.5
1000 m
0.75
1.5
1.5
2
2.5
Cable type:
The loudspeakers can be connected using communications cable I-Y (St) Y n x 2
x 0.8 mm, for example. If a different, comparable cable type is used, please bear
in mind the output and cable length required.
Conversion:
Cable cross-section
Cable diameter
0.5 mm²
0.8 mm
0.75 mm²
1.0 mm
Calculation aid:
Loop fault-free
Max. 1 dB (=10 %) power loss
Loop with faults
Additional 2 dB power loss
Up to 1st speaker max. 150 m cable length; the further speakers are evenly
distributed.
3.4.3 Specification Loop Isolator Modul (LIM)
The maximum distance between two Loop Isolator Modules (LIM) in the ring depends on the selected cable cross-
section in Chapter 3.4.2. The distance can be configured for specific projects using the values in the following
table.
Cable cross-section
Max. distance
2.5 mm²
165 m
2 mm²
130 m
1.5 mm²
100 m
1 mm ²
66 m
0.5 mm²
33 m
0.25 mm²
16.5 m
The factory recommendation is a configuration with 1.5 mm²
≙
max. distance 100 m.
