Carrier Access Adit 3104 user manual Pair Telco Connector, Pair Pin Function Color Code

Electrical Installation & Cabling

Interface Connectors

25-Pair Telco Connector

Tip and Ring Analog Interface equipped with standard 25-pair Telco Connector (female) for connection to key systems, fax machines, modems, and PBXs.

Circuit connections are made at the 25-pair telco connectors. A standard 25-pair telephone cable with RJ-21X wiring and a male D-type connector at the Adit 3000 end is required.

The pinouts are as follows:

26	50
1	25

Pair	Pin	Function	Color Code	Pair	Pin	Function	Color Code
1	26	Tip Channel 1	White/Blue	14	39	Tip Channel 14	Black/Brown
	1	Ring Channel 1	Blue/White		14	Ring Channel 14	Brown/Black
2	27	Tip Channel 2	White/Orange	15	40	Tip Channel 15	Black/Slate
	2	Ring Channel 2	Orange/White		15	Ring Channel 15	Slate/Black
3	28	Tip Channel 3	White/Green	16	41	Tip Channel 16	Yellow/Blue
	3	Ring Channel 3	Green/White		16	Ring Channel 16	Blue/Yellow
4	29	Tip Channel 4	White/Brown	17	42	Tip Channel 17	Yellow/Orange
	4	Ring Channel 4	Brown/White		17	Ring Channel 17	Orange/Yellow
5	30	Tip Channel 5	White/Slate	18	43	Tip Channel 18	Yellow/Green
	5	Ring Channel 5	Slate/White		18	Ring Channel 18	Green/Yellow
6	31	Tip Channel 6	Red/Blue	19	44	Tip Channel 19	Yellow/Brown
	6	Ring Channel 6	Blue/Red		19	Ring Channel 19	Brown/Yellow
7	32	Tip Channel 7	Red/Orange	20	45	Tip Channel 20	Yellow/Slate
	7	Ring Channel 7	Orange/Red		20	Ring Channel 20	Slate/Yellow
8	33	Tip Channel 8	Red/Green	21	46	Tip Channel 21	Violet/Blue
	8	Ring Channel 8	Green/Red		21	Ring Channel 21	Blue/Violet
9	34	Tip Channel 9	Red/Brown	22	47	Tip Channel 22	Violet/Orange
	9	Ring Channel 9	Brown/Red		22	Ring Channel 22	Orange/Violet
10	35	Tip Channel 10	Red/Slate	23	48	Tip Channel 23	Violet/Green
	10	Ring Channel 10	Slate/Red		23	Ring Channel 23	Green/Violet
11	36	Tip Channel 11	Black/Blue	24	49	Tip Channel 24	Violet/Brown
	11	Ring Channel 11	Blue/Black		24	Ring Channel 24	Brown/Violet
12	37	Tip Channel 12	Black/Orange	25	50	Reserved	Violet/Slate
	12	Ring Channel 12	Orange/Black		25		Slate/Violet
13	38	Tip Channel 13	Black/Green
	13	Ring Channel 13	Green/Black

Adit 3104 - Release 1.6 3-5