Nortel Networks BCM50 - Manual (Page 205)

Appendix A RJ-21 telephony connector wiring chart 205
Installation and Maintenance Guide
23
48 Tip Violet-Green Digital
telephone
403 223 —
23 Ring Green-Violet
24
49 Tip Violet-Brown Digital
telephone
402 222 —
24 Ring Brown-Violet
25
50 Tip Violet-Slate
Digital
telephone
401 221 —
25 Ring Slate-Violet
Table 34 RJ-21 telephony connector wiring (Sheet 3 of 3)
Device Pin Connection Wire color Type of device Port Default DN
Default line
number