RJ21 wiring
Color Pin (Tip) Pin (Ring) Color
Wire white blue stripe.svg White/Blue 26 1 Wire blue white stripe.svg Blue/White
Wire white orange stripe.svg White/Orange 27 2 Wire orange white stripe.svg Orange/White
Wire white green stripe.svg White/Green 28 3 Wire green white stripe.svg Green/White
Wire white brown stripe.svg White/Brown 29 4 Wire brown white stripe.svg Brown/White
Wire white gray stripe.svg White/Slate 30 5 Wire gray white stripe.svg Slate/White
Wire red blue stripe.svg Red/Blue 31 6 Wire blue red stripe.svg Blue/Red
Wire red orange stripe.svg Red/Orange 32 7 Wire orange red stripe.svg Orange/Red
Wire red green stripe.svg Red/Green 33 8 Wire green red stripe.svg Green/Red
Wire red brown stripe.svg Red/Brown 34 9 Wire brown red stripe.svg Brown/Red
Wire red gray stripe.svg Red/Slate 35 10 Wire gray red stripe.svg Slate/Red
Wire black blue stripe.svg Black/Blue 36 11 Wire blue black stripe.svg Blue/Black
Wire black orange stripe.svg Black/Orange 37 12 Wire orange black stripe.svg Orange/Black
Wire black green stripe.svg Black/Green 38 13 Wire green black stripe.svg Green/Black
Wire black brown stripe.svg Black/Brown 39 14 Wire brown black stripe.svg Brown/Black
Wire black gray stripe.svg Black/Slate 40 15 Wire gray black stripe.svg Slate/Black
Wire yellow blue stripe.svg Yellow/Blue 41 16 Wire blue yellow stripe.svg Blue/Yellow
Wire yellow orange stripe.svg Yellow/Orange 42 17 Wire orange yellow stripe.svg Orange/Yellow
Wire yellow green stripe.svg Yellow/Green 43 18 Wire green yellow stripe.svg Green/Yellow
Wire yellow brown stripe.svg Yellow/Brown 44 19 Wire brown yellow stripe.svg Brown/Yellow
Wire yellow gray stripe.svg Yellow/Slate 45 20 Wire gray yellow stripe.svg Slate/Yellow
Wire violet blue stripe.svg Violet/Blue 46 21 Wire blue violet stripe.svg Blue/Violet
Wire violet orange stripe.svg Violet/Orange 47 22 Wire orange violet stripe.svg Orange/Violet
Wire violet green stripe.svg Violet/Green 48 23 Wire green violet stripe.svg Green/Violet
Wire violet brown stripe.svg Violet/Brown 49 24 Wire brown violet stripe.svg Brown/Violet
Wire violet gray stripe.svg Violet/Slate 50 25 Wire gray violet stripe.svg Slate/Violet