Hello all,
As a former electrician we used colors and numbers to setup lighting systems from small club applications all the way to stadium venues.
Most of the connectors in touring lighting systems are large enough to wrap in colored tape and then label numerically.
A former master electrician I apprenticed under said, “Colors are universal, you don’t have to read a color.”
The connectors on model railroads are much smaller. You can use colored tape bands; think resistors, and then use a numerical flags (if necessary).
My wife is a veterinary technician, they use colored tape bands to mark surgical instruments when assembling surgical packs. The brand name they use is Tape 'n Tell manufactured by HenrySchein. It’s 1/4-inch wide and can withstand an autoclave. The white is great for making control panels.
I found an 8-color pack on Amazon for $26.89 (with free shipping).
Combining these with colored electrical tape will allow you to color code your wiring in a multitude of combinations.
As an example, you can have a master color for boosters; lets say yellow electrical tape (wider than the Tape 'n Tell). Then have bands of thinner tape to specify a particular section or block.
Just like resistor code you “read” from the wide to the thin.
If you need more coding you can add a numerical flag on the end; yellow wide, white, yellow, green, blue, black, red, brown, orange, 01.
For single digits I prefer to add a zero as a prefix, I also underline a 6 or 9 for clarity.
As I’ve seen posted on these forums, many tele communications technicians are used to color-banding in multi-paired analog cables.
You don’t have to use all the tape colors to get accurate coding. The number of color bands can be a numeric reference.
In my booster example you can use