Installation Instruction VARIODYN
®
 D1 System 
 
24  FB 798663.GB0 / 05.19 
Wiring example with 6 Fire section (FS) 
 
 
Fig. 17: Loop technology in place of A/B cabling (example) 
 
 
 
 
• 
Do not route outbound and inbound ring conductors in the same cable or the same conduit. 
•  Maximum ring loop length 1000 m including connected spur lines  
(observe cable cross-section). 
•  Install LIM at the start and end of the loop. Maximum distance to DOM 10 m. 
-  For performance calculation, use 3 watts per LIM 
-  Twisted loudspeaker cable 2 x 1.5 mm² or communication cable I-Y (St) Y n x 2 x 0.8 mm can be 
used for the loop. Note the building-specific power requirements and permitted cable length!