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Chapter 11 Installing telephones and peripherals 143
Installation and Maintenance Guide
Table 37 Cross referencing ports and DNs on a 2.5 system upgraded to 3.0 or newer software
Pins Port*
DS 30
bus 02
DNs
DS 30
bus 03
DNs
DS 30
bus 04
DNs
DS 30
bus 05
DNs
DS 30
bus 06
DNs
DS 30
bus 07
DNs
26/1 X01 221 237 253 269 285 301
27/2 X02 222 238 254 270 286 302
28/3 X03 223 239 255 271 287 303
29/4 X04 224 240 256 272 288 304
30/5 X05 225 241 257 273 289 305
31/6 X06 226 242 258 274 290 306
32/7 X07 227 243 259 275 291 307
33/8 X08 228 244 260 276 292 308
34/9 X09 229 245 261 277 293 309
35/10 X10 230 246 262 278 294 310
36/11 X11 231 247 263 279 295 311
37/12 X12 232 248 264 280 296 312
38/13 X13 233 249 265 281 297 313
39/14 X14 234 250 266 282 298 314
40/15 X15 235 251 267 283 299 315
41/16 X16 236 252 268 284 300 316
Second-level DNs (DS 30 bus set to Full Double Density)
Pins Port*
DS 30
bus 02
DNs
DS 30
bus 03
DNs
DS 30
bus 04
DNs
DS 30
bus 05
DNs
DS 30
bus 06
DNs**
DS 30
bus 07
DNs**
26/1 X17 377 393 409 425 441 457
27/2 X18 378 394 410 426 442 458
28/3 X19 379 395 411 427 443 459
29/4 X20 380 396 412 428 444 460
30/5 X21 381 397 413 429 445 461
31/6 X22 382 398 414 430 446 462
32/7 X23 383 399 415 431 447 463
33/8 X24 384 400 416 432 448 464
34/9 X25 385 401 417 433 449 465
35/10 X26 386 402 418 434 450 466
36/11 X27 387 403 419 435 451 467
37/12 X28 388 404 420 436 452 468
38/13 X29 389 405 421 437 453 469
39/14 X30 390 406 422 438 454 470
40/15 X31 391 407 423 439 455 471
41/16 X32 392 408 424 440 456 472
* For each port, substitute the X for the DS30 bus number. Example: Port X01 on DS30 bus 02 is port 0201.
** On default systems, these two DS30 bus blocks are set to Partial Double Density (PDD), which means that the
second level of DNs are not available.