Black Box COMPACT T1 quick start Pair Telco Connectors, Pair Pin Location Function Color Code

Quick Start

Interface Connectors

25-Pair Telco Connectors

Tip and Ring Analog Interfaces equipped with standard 25-pair Telco Connectors (female) for connection to key systems, fax machines, modems, and PBXs. These interfaces are also used for ISDN BRI ports and are jumper selectable on the Quad T1 card.

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 Unit end is required.

The pinouts are as follows:

26	50
1	25

Pair	Pin Location	Function	Color Code
1	26	Tip Channel 1	White/Blue
	1	Ring Channel 1	Blue/White
2	27	Tip Channel 2	White/Orange
	2	Ring Channel 2	Orange/White
3	28	Tip Channel 3	White/Green
	3	Ring Channel 3	Green/White
4	29	Tip Channel 4	White/Brown
	4	Ring Channel 4	Brown/White
5	30	Tip Channel 5	White/Slate
	5	Ring Channel 5	Slate/White
6	31	Tip Channel 6	Red/Blue
	6	Ring Channel 6	Blue/Red
7	32	Tip Channel 7	Red/Orange
	7	Ring Channel 7	Orange/Red
8	33	Tip Channel 8	Red/Green
	8	Ring Channel 8	Green/Red
9	34	Tip Channel 9	Red/Brown
	9	Ring Channel 9	Brown/Red
10	35	Tip Channel 10	Red/Slate
	10	Ring Channel 10	Slate/Red

16 Compact T1 - Release 6.1