RJ21 (Telco 50)

Connect pin assign: Color Pin (Tip) Pin (Ring) Color White/Blue 26 1 Blue/White White/Orange 27 2 Orange/White White/Green 28 3 Green/White White/Brown 29 4 Brown/White White/Grey 30 5 Grey/White Red/Blue 31 6 Blue/Red Red/Orange 32 7 Orange/Red Red/Green 33 8 Green/Red Red/Brown 34 9 Brown/Red Red/Grey 35 10 Grey/Red Black/Blue 36 11 Blue/Black Black/Orange 37 …

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