What the order code covers
The Fuji F39-JC10A-L is an 8-conductor, 4-pair cable set supplied at 10 m in a black jacket, classed as a PLC accessory on the PLCs & HMIs line.
Where this class of part sits in a panel
As a PLC accessory cable, it ties into the rack- or base-mounted PLC it was specified against — the 8C 4PR construction is the load-bearing detail, since four balanced pairs over 10 m is the geometry the receiving module expects on its I/O or communication terminals.
Notes for the storeroom
Keep the cable set in its original packaging until the panel cut-out is complete, since the jacket and pair geometry are the parts most easily damaged by kinking during a long lay-in alongside a trunk run.