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 over. Follow the procedures below to replace an IOGT card with a spare. Note:To replace the IOGT card, the STBY mode of the card (to be replaced) must be first confirmed. The mode changeover is available by using the MBR key on the active IOGT card or by using the CMODI command. See Figure 4-16. Figure 4-16 System Block Diagram (IOGT and Other Speech Path Echelons) < ISW (Inter-node Switch) > ISAGT: PZ-GT13 LANI: PZ-PC19 IOGT: PH-GT10 TSW: PU-SW00 HSW: PU-SW01 PLO: PH-CK16-A/17-A EMA: PH-PC40 IOC: PH-IO24 < LN (Local Node) > ISAGT-A: PZ-GT13 ISAGT-B: PZ-GT20 LANI: PZ-PC19 GT: PH-GT09 TSW: PH-SW12 MUX: PH-PC36 DLKC: PH-PC20 PLO: PH-CK16-A CLK: PH-CK18 EMA: PH-PC40 IOC: PH-IO24 TSWM0TSWM1 MISCIOCEMA PLO TSW00TSW01TSW02TSW03 GT ISAGT-A CPULANI Fusion Link ISW LN0 To PLO of LN1 through 3 DLKCPLO IOGT ISAGT CPU LANI To MUX (IMG1)To MUX (IMG2)To MUX (IMG3) CLK TSW01TSW02TSW03HSW00 To TSW of LN3 To TSW of LN1To TSW of LN2 To LANI of LN1 through 3 HSW01TSW00 Line/Trunk PM IMG 0 PM BUS PCM HW PM BUS PCM HWPM BUS PCM HWPM BUS PCM HW MUXMUXMUXMUX MISCIOCEMA TSW00TSW01TSW02TSW03 GT ISAGT-B
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 (TSW cards) OPE/MB (DLKC card) MUX ACT (MUX cards) Check the following lamp indications on the mate IOGT card and other circuit cards in the same mate block and ensure they are all a 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 (MUX cards) TSW ACT lamp on the IOGT card remains OFF. A Confirm the mate IOGTs ACT mode. START On the IOGT card to be replaced, set the MBR key UP. If the card to be replaced is active, flip the MBR key on the card OFF OFFON
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 MB/MBR key UP, On the IOGT card to be replaced, set the MB key UP.
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 (MUX cards) Check the following lamp indications on the mate IOGT card and other circuit cards in the same mate block are all OFF: 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 (MUX cards) ATTENTIONContents Static Sensitive Handling Precautions Required END B Flip the MBR key on the active IOGT card. Confirm the new IOGT functions normally.
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 LNs. Note:To replace the TSW card, the STBY mode of the card (to be replaced) must be first confirmed. The mode changeover is available by using the MBR key on the active IOGT card or by using the CMODI command. See Figure 4-16. TSW Card Replacement Procedure Use extreme care when operating the keys on the circuit card. WA RN I NG 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 OFF: 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 (MUX cards) Check the following lamp indications on the mate TSW card and other circuit cards in the same mate block are all a 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 (MUX cards) TSW ACT lamp on the TSW card remains OFF. TSW ACT lamp on the TSW card lights red. A START Check the ACT mode of the mate Speech Path System. If the card to be replaced is active, flip the MBR key on the active IOGT (PH-GT10) OFFON card OFF On the TSW card to be replaced, set the TSW MBR key UP. On the TSW card to be replaced, set the TSW MB key UP.
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 LN00~LN03, LN10~LN13, LN20~23, and LN30~LN33 LEDs on the new card are lighting green. Set the TSW MBR key on the new card DOWN.
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 cards) At the LN: TSW ACT (TSW cards) OPE/MB (DLKC card) MUX ACT (MUX cards) Check the following lamp indications on the mate TSW card and other circuit cards in the same mate block are all OFF: 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 (MUX cards) END B Flip the MBR key on the active IOGT card. Confirm the new card functions normally.
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 one card. It is used to perform 16 highways switching by two PU-SW01 cards. Note:To replace the HSW card, the STBY mode of the card (to be replaced) must be first confirmed. The mode changeover is available by using the MBR key on the active IOGT card or by using the CMODI com- mand. See Figure 4-16. HSW Card Replacement Procedure Use extreme care when operating the keys on the circuit card. WA RN I NG ATTENTIONContents Static Sensitive Handling Precautions Required System Changeover: Check the following lamp indications on the HSW and other circuit cards in the same Switching block are all OFF: 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 (MUX cards) Check the following lamp indications on the mate HSW card and other circuit cards in the same mate block are all a 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 (MUX cards) A START Check the ACT mode of the mate Speech Path System. If the card to be replaced is active, flip the MBR key on the active IOGT (PH-GT10) OFFON card OFF
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.
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 cards) At the LN: TSW ACT (TSW cards) OPE/MB (DLKC card) MUX ACT (MUX cards) Check the following lamp indications on the mate TSW card and other circuit cards in the same mate block are all OFF: 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 (MUX cards) END B Flip the MBR key on the active IOGT card in the same block. Confirm the new card functions normally.