2 & 3 Pair Telephone Cables
| Two Pair Cables |
| Circuit |
Ring |
Tip |
| Circuit 1 |
Red |
Green |
| Circuit 2 |
Yellow |
Black |
| Three Pair Cables |
| Circuit |
Ring |
Tip |
| Type 1 |
| Circuit 1 |
Red |
Green |
| Circuit 2 |
Yellow |
Black |
| Circuit 3 |
Blue |
White |
| Type 2 |
| Circuit 1 |
Red |
Green |
| Circuit 2 |
Yellow |
Black |
| Circuit 3 |
Blue/White band |
White/Blue band |
| Type 3 |
| Circuit 1 |
Blue |
White/Blue band |
| Circuit 2 |
Orange |
White/Orange band |
| Circuit 3 |
Green |
White/Green band |
| Type 4 |
| Circuit 1 |
Blue/White band |
White/Blue band |
| Circuit 2 |
Orange/White band |
White/Orange band |
| Circuit 3 |
Green/White band |
White/Green band |
One way to remember the Ring terminal is with the 4 R's:
"RED, RIGHT, ROUGH, RING"