FTN typical drawing (D&D)
DR FTN (D&D) 003
Spur Cable Arrangement: 1 Tube Spurred
Issue 2 · FTN D&D specs & typical drawings
What the drawing shows
How a single loose tube is broken out of the trunk fibre at a joint and spurred to a site, with the trunk fibres passed through.
Typical drawings are a starting point: the project design, the site survey and the current standards decide what is actually built.