236 Appendix K G4x16 and G8x16 wiring charts
NN40170-305
3 28 Tip White-Green
255 287
3 Ring Green-White
429Tip White-Brown
256 288
4 Ring Brown-White
530Tip White-Slate
257 289
5 Ring Slate-White
6 31 Tip Red-Blue
258 290
6 Ring Blue-Red
7 32 Tip Red-Orange
259 291
7 Ring Orange-Red
8 33 Tip Red-Green
260 292
8 Ring Green-Red
9 34 Tip Red-Brown
261 293
9 Ring Brown-Red
10 35 Tip Red-Slate
262 294
10 Ring Slate-Red
11 36 Tip Black-Blue
263 295
11 Ring Blue-Black
12 37 Tip Black-Orange
264 296
12 Ring Orange-Black
13 38 Tip Black-Green
265 297
13 Ring Green-Black
14 39 Tip Black-Brown
266 298
14 Ring Brown-Black
15 40 Tip Black-Slate
267 299
15 Ring Slate-Black
16 41 Tip Yellow-Blue
268 300
16 Ring Blue-Yellow
— 42 No connection Yellow-Orange
— —
17 No connection Orange-Yellow
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— 50 No connection Violet-Slate
— —
25 No connection Slate-Violet
Table 50 G4x16/G8x16 MBM upper RJ-21 (amphenol) connector wiring for digital telephones
(Sheet 2 of 2)
Set Pin Connection Wire color
Default DN on
Expansion port 1
Default DN on
Expansion port 2
