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8. Marking cable loom cables

You should mark the different cables in your cable loom, using fluorescent Pro Gaff tape, now that you’ve had to go through them one by one.

You could choose this method:
  • Mark a plug with one colour, then search for the other end of the same cable, measure it, and mark it with the same colour. Repeat this process with all the other cables in the loom, using different colours. You can also use a marker pen to write on the pieces of tape.

Make sure you use the same colours for the opposite ends of one cable. There are only four different Pro Gaff colours available, but you can also use combinations of two or three tapes for additional options.

We use the following abbreviations:


    GTR – guitar cable
    
AMP – amp cable going to the amp’s input 

    FS – footswitch for channel switching etc.

    IP – input; the board’s input
    
OP – output; the board’s output
    
S – send; FX loop send
    
R – return; FX loop return 

    SPK – speaker cable

    WRL – wireless; cable or coming from the wireless system



    You can also come up with similar abbreviations that work for your requirements. You can also draw arrows to mark the signal flow of critical cables.

    The most important thing to remember is that you use the same colours and abbreviations on both ends of the same cable, and that you keep your markings logical and legible.

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