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CHAPTER 7 NDA-24300
Page 496
Issue 1
ROUTINE MAINTENANCE PROCEDURE
1.2 Required Test Equipment and Tools
Table 7-1 shows the tools and equipment required for test procedures.
Table 7-1 Test Equipment and Tools
NO. TEST EQUIPMENT/TOOLS PURPOSE REMARKS
1 Telephone Set A telephone set is used when performing connection tests
on trunks, etc.
2 Blown Fuse A blown fuse is used when performing alarm tests.
3 VOM Digital Meter VOM digital meter is used when checking output voltages
of the rectifier and the battery.
4 Phillips Screwdriver A screwdriver is used when replacing the fan with a spare.
- NEC America, Inc 1
- NEAX2400 IPX 10
- NDA-24300 10
- TABLE OF CONTENTS (CONTINUED) 13
- LIST OF FIGURES 21
- LIST OF FIGURES (CONTINUED) 22
- LIST OF TABLES 25
- LIST OF TABLES (CONTINUED) 26
- CHAPTER 1 INTRODUCTION 28
- CHAPTER 1 NDA-24300 29
- INTRODUCTION 29
- 1. GENERAL 30
- 1.1 Purpose 30
- 2.1 System Configuration 32
- Front View 33
- 192 TS192 TS 37
- 2.2.3 Group 38
- Groups as an exception 38
- 2.2.4 Level 39
- NDA-24300 CHAPTER 2 42
- SYSTEM MAINTENANCE OUTLINE 42
- CHAPTER 2 NDA-24300 45
- A pin is bent, not 55
- Gold-plated terminal 56
- CHAPTER 3 SYSTEM MESSAGES 64
- Reset Interrupt 69
- CPU Clock Down 71
- C-Level Infinite Loop 72
- Memory Failure 74
- ➀ ➁ ➂ ➃ ➃ ➃ 77
- Mate CPU Failure 78
- ➀ ➁ ➂ ➃ ➃ ➃ ➃ 79
- Both TSW Failure (Permanent) 80
- TSW Failure (Permanent) 81
- Both TSW Write Failure 82
- Module Group Down Failure 90
- TSW ACT Change Report 91
- Status of ACT side TSW card 92
- Status of ST-BY side TSW card 92
- PLO Restore 95
- Lock-Up Failure (Permanent) 98
- Lock-Up Failure (Temporary) 99
- -48V Over Current 100
- Ground Failure 101
- Digital Line Warning 102
- Digital Line Restore 104
- Both TSW Ready Failure 105
- TSW Ready Failure 106
- DLKC Ready Failure 107
- MUX Ready Failure 108
- Both MUX Ready Failure 109
- ➀ ➁ ➂ ➃ ➄ 110
- System Failure 114
- RGU & Howler Failure 115
- Line Load Control Start 116
- Line Load Control Stop 117
- NDA-24300 CHAPTER 3 120
- SYSTEM MESSAGES 120
- 12 12 12 123
- Emergency Control Start 127
- Emergency Control Stop 128
- Detail Information 135
- Load Status 136
- System Initialize 138
- CPU MBR Key Turn ON 139
- CPU MBR Key Turn OFF 140
- TSW MBR Key Turn ON 141
- TSW MBR Key Turn OFF 142
- TSW PLO Key Turn ON 143
- TSW PLO Key Turn OFF 144
- ALMC MB Key Turn ON 145
- ALMC MB Key Turn OFF 146
- PM MB Key Turn ON 147
- PM MB Key Turn OFF 148
- NCU MB Key Turn ON 149
- NCU MB Key Turn OFF 150
- Cyclic Diagnosis Normal 151
- Routine Diagnosis 155
- Active TSW system after 155
- Routine Diagnosis 156
- Active CPU system 156
- MG and Unit of No. of Trunk 157
- Ineffective Hold 157
- Performed Diagnosis Item 160
- MUX card (STBY) linkage 169
- Error detection by Routine 172
- Diagnosis 172
- ACT system after changeover 172
- Error detection by Routine 173
- ACT system after changeover 175
- ➀ ➁ ➂ ➃ ➄ ➅ ➆ ➇ ➈ ➉ 180
- Performed Diagnosis Item 182
- ED (Error Data) 182
- PLO MB Key Turn ON 183
- PLO MB Key Turn OFF 184
- CCH Clock Failure 185
- CCS Link Failure (Permanent) 192
- Probable cause for failure 193
- CCS Link Failure (Temporary) 194
- CKT No. of faulty circuit 196
- CCH Reset Interrupt Failure 197
- Digital Line Failure 199
- DRU Battery Operation 201
- DRU Line Operation 202
- Power Failure 203
- VPS Failure (Temporary) 204
- VPS Failure (Permanent) 205
- VPS Restore 206
- Inside Trunk All Busy 207
- Virtual Tie Line Set Report 209
- Virtual Tie Line Set Time Out 211
- Accommodated Location 212
- Fault Cause 212
- Invalid message class 213
- I/O Port Line OFF 221
- I/O Port Line Restore 222
- Hard Clock Failure 223
- Hard Clock Restore 224
- IOC Failure (Temporary) 225
- IOC Failure (Permanent) 226
- Station Exchanged Report 227
- CCH MBR Key Turn ON 230
- CCH MBR Key Turn OFF 231
- CCH MB Key Turn ON 232
- CCH MB Key Turn OFF 233
- Day/Night Change Information 234
- Day/Night Mode Specification 235
- External Switch Status 235
- IOC MB Key Turn ON 236
- IOC MB Key Turn OFF 237
- IOC MBR Key Turn ON 238
- IOC MBR Key Turn OFF 239
- ➀ ➁ ➂ ➃ ➄ ➅ 240
- MUX Clock Failure 244
- Both MUX Clock Failure 245
- Call Trace 247
- ➅ Kind of Call (Hex.) 250
- LAN Interface Error Report 251
- ➈ Application Type 253
- LAN Interface Release Report 255
- MUX Clock Restore 257
- SDT Alarm Warning 258
- SDT Alarm Trouble 260
- CHAPTER 3 NDA-24300 261
- Page 234 261
- Page 235 262
- SDT Alarm Restore 263
- SDT Interface Change Notify 264
- This page is for your notes 265
- NDA-24300 CHAPTER 4 266
- Page 239 266
- (Make-busy) key 267
- AT TE NTIO N 269
- Page 243 270
- Contents 271
- Static Sensitive 271
- Handling 271
- Precautions Required 271
- Cable Name to be disconnected 276
- CPU #0: 10AL-(110) FLT CA 276
- CPU #1: 10AL-(130) FLT CA 276
- ATTENTION 282
- Top Cover 283
- Front Panel 283
- Page 257 284
- HFD (PZ-IO27/PZ-IO28) 285
- CHAPTER 4 NDA-24300 293
- Page 266 293
- 2.3 Operating Procedures 294
- Page 272 299
- Page 273 300
- 3.3 Operating Procedures 311
- Page 296 323
- Figure 4-19 FANU Locations 323
- 1 Turn PWR SW OFF 324
- Page 299 326
- PZ-PC19 (LANI) 328
- PZ-GT16 and PZ-GT13 (ISAGT) 328
- Cooling FAN 329
- Page 303 330
- If a fuse is blown 331
- A normal fuse A blown fuse 331
- PBX [Front View] 332
- Slot No. 00 and/or 01 333
- Page 307 334
- Page 308 335
- 1. LINE FAULT 338
- CHAPTER 5 NDA-24300 339
- Page 312 339
- FAULT REPAIR PROCEDURES 339
- 2.2 Trunk Control 350
- NDA-24300 CHAPTER 5 356
- Page 329 356
- Page 330 357
- Page 334 361
- Page 347 374
- Page 348 375
- TSW I/O 384
- Page 362 389
- Page 363 390
- Page 370 397
- Page 371 398
- Page 372 399
- Page 373 400
- Page 374 401
- Page 375 402
- Page 376 403
- External 405
- 11. SYSTEM DOWN FAULT 406
- Page 380 407
- Page 381 408
- Page 382 409
- Page 384 411
- Page 385 412
- Page 387 414
- Page 388 415
- Page 389 416
- CHAPTER 6 SYSTEM OPERATIONS 418
- NEAX2400 IMX 419
- LOCKOUT STATION 421
- SEPARATING 421
- TEST TEL 421
- • Cancelling 424
- NDA-24300 CHAPTER 6 428
- Page 401 428
- SYSTEM OPERATIONS 428
- CHAPTER 6 NDA-24300 431
- Page 404 431
- Page 406 433
- Page 407 434
- Page 408 435
- Page 409 436
- Page 410 437
- 7.2.3 Called Number 438
- 7.2.6 Condition B Information 440
- Page 414 441
- Page 417 444
- Page 419 446
- Reference 447
- Page 421 448
- Page 422 449
- Page 424 451
- Page 428 455
- Page 430 457
- Listup Report 458
- 69 of 69 458
- Total: 69 458
- Page 432 459
- Page 433 460
- Over-FCCS 463
- COMMAND COMMAND FULL NAME 465
- REGISTER 467
- UNDER TEST 467
- (b) Sender Test Procedure 468
- RT NUMBER 469
- TRUNK NAME 469
- Page 443 470
- (d) Tone Test Procedure 471
- (f) Trunk Test Procedure 474
- Page 448 475
- Page 453 480
- Page 454 481
- Page 456 483
- PZ-DK224 484
- Lamp is ON 490
- Lamp is OFF 490
- DSP (Active) 491
- Page 465 492
- Page 468 495
- FRONT VIEW 496
- GT (Active) 497
- PH-CK16/17 (Front View) 498
- PLO: ST-BY 498
- PLO: Active 498
- PLO: ActiveMB key 500
- Page 474 501
- Page 477 504
- PZ-DK222: Face Layout 505
- CPR: Face Layout 505
- CHAPTER 7 NDA-24300 525
- Page 498 525
- ROUTINE MAINTENANCE PROCEDURE 525
- NDA-24300 CHAPTER 7 526
- Page 499 526
- 2.3 MAT/Printer Check 527
- Page 501 528
- Page 502 529
- 2.6 Fan Unit Check 530
- Page 504 531
- 2.8 Main Power System Check 532
- Page 506 533
- 3:25 PM WED 1 535
- Page 509 536
- Page 510 537
- Page 512 539
- Page 513 540
- Page 514 541
- Page 515 542
- Page 516 543
- Page 517 544
- Page 518 545
- CHAPTER 8 NDA-24300 557
- Page 530 557
- NDA-24300 CHAPTER 8 558
- Page 531 558
- Page 535 562
- TYPE=2 (Level → Unit → Group) 563
- TYPE=3 (Group → Level → Unit) 563
- Group No 564
- Level No 564
- Page 540 567
- Change of Dch Backup 568
- Change of System Mode 569
- Control Message Waiting Lamp 570
- Controlled Alternate PRSCs 572
- Page 549 576
- Page 550 577
- Display of Connection Status 578
- Page 552 579
- Display of Program Issue 580
- Display of LENS Data 581
- Page 559 586
- Display Package Switch Status 589
- Display of Station Data 590
- Page 564 591
- Page 565 592
- Page 566 593
- Display of Route Traffic Data 594
- Page 568 595
- Page 569 596
- Page 570 597
- Page 571 598
- Page 572 599
- Page 573 600
- Page 574 601
- Page 575 602
- Page 576 603
- Page 577 604
- DTF101N: 605
- DTF102N: 606
- DTF103N: 607
- DTF104N: 608
- DTF105N: 609
- DTF201N: 610
- DTF301N: 611
- DTF302N: 612
- DTF303N: 613
- DTF501N: 614
- DTF601N: 615
- DTF602N: 616
- File Install 617
- HDD_FDD: 618
- HDD_MAT: 620
- HDD_MAT_N: 621
- HDD Format of PBX 622
- Page 596 623
- Make Busy of LENS 624
- Page 598 625
- Make Busy of Route 626
- MBRT_LR: 627
- Page 601 628
- Make Busy of Station 629
- Make Busy of Trunk-Continuous 631
- MBTC_LR: 632
- Make Busy of Trunk 633
- MBTK_LR: 634
- MEM_HDD: 635
- MEM_HDD_N: 636
- Make Busy of FCCH 637
- Port Microprocessor Back Up 638
- Release Alarm 639
- Release Alarm for NDM 640
- Release Station/Trunk 641
- System Initialization 644
- Scanning of Port Status 645
- Page 620 647
- SPTS: Scanning of Port Status 647
- Page 621 648
- RT: See Table 8-8 649
- TK: Trunk Number 649
- TCL: Trunk Class 649
- Scanning of Route Status 650
- SRTS_LR: 651
- X-RAY HD or FDD Diagnosis 652
- Page 626 653
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