NEC Neax 2400 Ipx System Operations And Maintenance Manual
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NDA-24307 CHAPTER 4 Page 333 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 4.3.1 IOGT Card Replacement Procedure The IOGT (PH-GT10) card is mounted in Slot No. 10 or 11 within the ISWM. This card provides MISC/TSW I/O bus interfaces between the CPU and TSW, HSW, PLO cards within the ISWM. Figure 4-16 shows a system block diagram centering upon the CPU and it’s controlling IOGT. If the ACT/ STBY of IOGT is changed over, those of TSW, HSW (in ISW) and TSW, MUX, DLKC (in all LNs) are also totally changed...
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CHAPTER 4 NDA-24307 Page 334 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE IOGT Card Replacement Procedure Use extreme care when operating the keys on the DSP of CPR and PH-GT09 card. WAR NI NG ATTENTIONContents Static Sensitive Handling Precautions Required System Changeover: Check the following lamp indications on the IOGT and other circuit cards in the same Switching block and ensure they are all OFF: At the ISW: TSW ACT (IOGT cards) TSW ACT (TSW cards) HSW ACT (HSW cards) At the LN: TSW ACT...
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NDA-24307 CHAPTER 4 Page 335 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE ATTENTIONContents Static Sensitive Handling Precautions Required TSW ACT lamp on the IOGT card lights red. TSW ACT lamp on the new card lights red. TSW ACT lamp on the IOGT card goes OFF. TSW ACT lamp on the IOGT card goes OFF. B Insert the new card into the ISWM. A Set the MBR key on the new card DOWN. Set the MB key on the new card DOWN.Extract the IOGT card to be replaced from the ISWM. On the new IOGT card, set the...
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CHAPTER 4 NDA-24307 Page 336 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE Note: The system changeover of Speech Path system can be executed also by using the CMODI command. For details, refer to Chapter 8, Maintenance Commands. System Changeover: Check the following lamp indications on the IOGT and other circuit cards in the same Switching block are all steady green: At the ISW: TSW ACT (IOGT cards) TSW ACT (TSW cards) HSW ACT (HSW cards) At the LN: TSW ACT (TSW cards) OPE/MB (DLKC card) MUX ACT...
Page 365
NDA-24307 CHAPTER 4 Page 337 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 4.3.2 TSW Card Replacement Procedure The TSW (PH-SW00) card is mounted in the Slot Nos. ranging from 04 to 07 and Slot Nos. 14 to 17 within the ISWM. Equipped with the Time Division Switch (TSW) and INT function, each circuit card provides Time Slot (TS) switching for one Local Node (LN). In addition, used together with two PU- SW01 (HSW) cards in pair, four PU-SW00 (TSW) cards achieve a maximum of 32,768 TS switching for four...
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CHAPTER 4 NDA-24307 Page 338 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE TSW ACT lamp on the TSW card lights red. TSW ACT lamp on the TSW card goes OFF. TSW ACT lamp on the TSW card goes OFF. ATTENTIONContents Static Sensitive Handling Precautions Required B A Set the TSW MB key on the new card DOWN.Insert the new card into the ISWM. Set the TSW MBR and TSW MB keys on the new card UP. Extract the TSW card from the ISWM. Set the key on the new card, referring to the card replaced. Confirm...
Page 367
NDA-24307 CHAPTER 4 Page 339 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE Note: The system changeover of Speech Path system can be executed also by using the CMODI command. For details, refer to Chapter 8, Maintenance Commands. ATTENTIONContents Static Sensitive Handling Precautions Required System Changeover: Check the following lamp indications on the TSW and other circuit cards in the same Switching block are all steady green: At the ISW: TSW ACT (IOGT cards) TSW ACT (TSW cards) HSW ACT (HSW...
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CHAPTER 4 NDA-24307 Page 340 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 4.3.3 HSW Card Replacement Procedure The HSW (PH-SW01) card is mounted in the Slot Nos. 03, 04 and Slot Nos. 18 and 19. The main functions of this card are as follows: (a) The swithc omposition is T-T-S-T (T:Time division, S: Space division, T: Time division), and the space division is composed with this circuit card. (b) This circuit card collects the 16 highways of PCM data from TSW cards and sends 8 highways to TSW cards by...
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NDA-24307 CHAPTER 4 Page 341 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE HSW ACT lamp on the HSW card lights red. HSW ACT lamp on the HSW card goes OFF. HSW ACT lamp on the HSW card goes OFF. ATTENTIONContents Static Sensitive Handling Precautions Required B A Set the HSW MB keys on the new card DOWN.Insert the new card into the ISWM. Set the HSW MB keys on the new card UP.Extract the HSW card from the ISWM. On the HSW card to be replaced, set the MB key UP.
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CHAPTER 4 NDA-24307 Page 342 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE Note: The system changeover of Speech Path system can be executed also by using the CMODI command. For details, refer to Chapter 8, Maintenance Commands. ATTENTIONContents Static Sensitive Handling Precautions Required System Changeover: Check the following lamp indications on the TSW and other circuit cards in the same Switching block are all steady green: At the ISW: TSW ACT (IOGT cards) TSW ACT (TSW cards) HSW ACT (HSW...