Nortel Networks BCM200 Appendix C Gatm wiring chart, GATM4 RJ-21 connector wiring Sheet 1

Appendix C GATM wiring chart 339

Appendix C

GATM wiring chart

Analog telephone lines are connected to the GATM4 or GATM8 through the RJ-21 connector on the front of the media bay module (MBM) (see Figure 191).

Figure 191 GATM RJ-21 connector

GATM

RJ-21		RJ-21 pin-out
	connector

Table 87 lists the wiring details for the RJ-21 connector on the GATM4.

Table 87 GATM4 RJ-21 connector wiring (Sheet 1 of 2)

Line	Pin	Connection	Wire color
1	26	Tip	White-Blue
	1	Ring	Blue-White
2	27	Tip	White-Orange
	2	Ring	Orange-White
—	28	No connection	White-Green
	3	No connection	Green-White
—	29	No connection	White-Brown
	4	No connection	Brown-White
3	30	Tip	White-Slate
	5	Ring	Slate-White
4	31	Tip	Red-Blue
	6	Ring	Blue-Red
—	32	No connection	Red-Orange
	7	No connection	Orange-Red
.	.	.	.
.	.	.	.
.	.	.	.
—	49	No connection	Violet-Brown
	24	No connection	Brown-Violet

BCM200/400 4.0 Installation and Maintenance Guide