Pair one, for example, has one white conductor Telephone Wire Color Code (25 Pair) Telephone cables are grouped in fives. Wire gauge is actually opposite of what it might first seem the higher the ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Color coding is really nothing new--radio component manufacturers started doing it in the 1920s.

Blue Ethernet cables aren’t any different from other colors. Different tones are only handy when you’re using multiple cables ...