System Numbering Forms
Form 2b, System Numbering:
Digital Adjuncts
Maximum 127 Adjuncts
Factory-Set
MFM
MLX
Log,
Telephone
Person, Location,
Set Up
ID
2-digit
3-digit
Space Renumber to
SAA
T/R
7500B
Ext. No.
Function, and Equipment Type
1
710 300 7300
2
711 301
7301
3
712 302 7302
4
713 303
7303
5
714
304
7304
6
715
305 7305
7
716 306 7306
8
717
307 7307
9
710
308
7308
10
719
303
7308
11
720
310 7310
12
721 311
7311
13
722 312 7312
14
723 313 7313
15
724 314 7314
16
725 315
7315
17
726 316
7316
18
727 317 7317
19
728 318 7318
20
728 319
7319
21
730 320
7320
22
731 321
7321
23
732 322 7322
24
733 323 7323
25
724 324
7324
26
735 325 7325
27
736 326 7326
28 737 327 7327
29
738 328 7328
30
738 329
7329
31
740
330
7330
32
741
331
7331
33
742 332 7332
34
743 333 7333
35
744 334
7334
36
745 335
7335
37
746 336 7336
38
747 337 7337
39
748 338 7333
40
749
339 7338
Figure A-2. Form 2b, System Numbering: Digital Adjuncts
A-4 Installation