Internal Telephone Cabling Color Coding and Pair Assignment

Flat modular cord
Category 5 cable - 568A configuration
Category 5 cable - 568B configuration
605 Plug
610 Socket

Flat modular cord with 6P6C RJ12 plug/socket
(standard USOC colour coding)

	Line (+)		Line (-)
	Color	Pin #	Color	Pin #
Pair 1	Green	4	Red	3
Pair 2	Black	2	Yellow	5
Pair 3	White	1	Blue	6

Category 5 Cable - 568A  configuration
(preferred Australian configuration)

	Line (+)		Line (-)
	Color	Pin #	Color	Pin #
Pair 1	Blue/White	5	Blue	4
Pair 2	Orange/White	3	Orange	6
Pair 3	Green/White	1	Green	2
Pair 4	Brown/Whitre	7	Brown	8

Category 5 Cable - 568B configuration.

	Line (+)		Line (-)
	Color	Pin #	Color	Pin #
Pair 1	Blue/White	5	Blue	4
Pair 2	Orange/White	1	Orange	2
Pair 3	Green/White	3	Green	6
Pair 4	Brown/White	7	Brown	8

Australian 605 Plug

	Line (+)		Line (-)
	Color	Pin #	Color	Pin #
Pair 1	Green	2	Red	6
Pair 2	Black	1	Yellow	5

Australian 610 socket

	Line (+)		Line (-)
	Color	Pin #	Color	Pin #
Pair 1	White	2	Blue	6
Pair 2	Red	1	Black	5