Nortel Networks BCM50 Appendix G Gatm wiring chart, GATM4 RJ-21 connector wiring Sheet 1

Appendix G GATM wiring chart 217

Appendix G

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 85).

Figure 85 GATM RJ-21 connector

GATM

RJ-21 connector RJ-21 pin out

Table 43 lists the wiring details for the RJ-21 connector on the GATM4.

Table 43 GATM4 RJ-21 connector wiring (Sheet 1 of 2)

				Default line numbers on	Default line numbers on
Line	Pin	Connection	Wire color	Expansion port 1	Expansion port 2
1	26	Tip	White-Blue	065	095
	1	Ring	Blue-White
2	27	Tip	White-Orange	066	096
	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	067	097
	5	Ring	Slate-White
4	31	Tip	Red-Blue	068	098
	6	Ring	Blue-Red
—	32	No connection	Red-Orange	—	—
	7	No connection	Orange-Red
.	.	.	.	.	.
.	.	.	.	.	.
.	.	.	.	.	.
—	49	No connection	Violet-Brown	—	—
	24	No connection	Brown-Violet

BCM50 Installation and Maintenance Guide