NEC Neax 2400 Imx System Operations And Maintenance Manual
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CHAPTER 4 NDA-24238 Page 254 Revision 3.0 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE Circuit Card Installation Into New CPR This procedure shows how to install the new CPR into the LPM. (1) Detach the front panel of the new CPR by using the Phillips screwdriver to remove the four screws, as shown in Figure 4-9. Then, lift the top cover by removing the eight screws. Figure 4-9 Removal of Front Panel and Top Cover From CPR ATTENTIONContents Static Sensitive Handling Precautions Required Top Cover CPRFront Panel
NDA-24238 CHAPTER 4 Page 255 Revision 3.0 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE (2) Insert the ISAGT (PZ-GT13) and LANI (PZ-PC19) cards into the following slots of the new CPR (refer to Figure 4-10): ISAGT (PZ-GT13) →Slot #6 (ISA) LANI (PZ-PC19) →Slot #0 (PCI) (For Netfusing Link) LANI (PZ-PC19) →Slot #1 (PCI) (When connecting MAT via 10-BASE T and PCI buses) LANI (PZ-PC19) →Slot #3 (PCI) (When LANI for Netfusing Link is in dual configuration) Note:The location of the second LANI (PCI Slot 3) is optional. Figure 4-10 Insertion of ISAGT and LANI Cards ATTENTIONContents Static Sensitive Handling Precautions Required CPRSlot 0 (PCI) LANIISAGT Slot 1 (PCI)Slot 3 (PCI) Slot 6 (ISA)
CHAPTER 4 NDA-24238 Page 256 Revision 3.0 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE (3) Reattach the top cover by fastening the removed eight screws. Then, reattach the front panel by fastening the removed four screws. Refer to Figure 4-11. Figure 4-11 Reattachment of CPR Top Cover and Front Panel ATTENTIONContents Static Sensitive Handling Precautions Required Top Cover CPRFront Panel
NDA-24238 CHAPTER 4 Page 257 Revision 3.0 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE (4) After turning ON the MBR key on the DSP of the new CPR, insert the new CPR into the LPM as shown in Figure 4-12. Then, fasten the retained four screws. Figure 4-12 Location of New CPR Into LPM ATTENTIONContents Static Sensitive Handling Precautions Required CPR LPM
CHAPTER 4 NDA-24238 Page 258 Revision 3.0 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE (5) Lastly, insert the new HFD into the CPR. Then, fasten the two screws as shown in Figure 4-13. Figure 4-13 Insertion of New HFD Into CPR 1.3.2 EMA Card Replacement Procedure The EMA (PH-PC40) card is mounted in Slot No. 04 of the LPM. The main func- tions of the card are as follows: Designation of ACT/STBY status of the CPU and forced changeover of the sys- tem Shutoff of the system’s power supply and detection of rising temperature within the system Music source for Music-On-Hold (for 1-IMG system only) Control of the NCU (PA-M53) card ATTENTIONContents Static Sensitive Handling Precautions Required LPM HFD (PZ-IO27/PZ-IO28) By using the two screws, fasten the new HFD onto the CPR. ATTENTIONContents Static Sensitive Handling Precautions Required ATTENTIONContents Static Sensitive Handling Precautions Required
NDA-24238 CHAPTER 4 Page 259 Revision 3.0 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE Replacement ProcedureBefore replacing the EMA card, check the CPU #0’s ACT mode. Attempting to replace the card when the CPU is active will result in the system being initialized. WAR NI NG Check the CPU OPE lamp of DSP #1. When the lamp is steady-green, perform the system changeover. OPE/MB lamp on the EMA card lights red from green. When NCU (PA-M53) cards are mounted, Power Failure Transfer (PFT) is activated. Turn ON the MB key on the EMA (PH-PC40) card. A Turn ON the MBR key on the DSP #1. (System Changeover of CPU #1: ACT STBY) Extract the EMA card from the LPM. CPU is Active? YES NO
CHAPTER 4 NDA-24238 Page 260 Revision 3.0 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE ATTENTIONContents Static Sensitive Handling Precautions Required OPE/MB lamp on the EMA card is steady-green. PFT service is cancelled: resumption of normal operation. Turn ON the MB and EMA SUP keys on the new card. Turn OFF the MB and EMA SUP keys on the card. Assign the time data by using the ATIM command. END A Set the keys on the new card by referring to the Insert the new card into the LPM.card being replaced.
NDA-24238 CHAPTER 4 Page 261 Revision 3.0 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 1.3.3 IOC Card Replacement Procedure The IOC (PH-IO24) card is mounted in Slot No. 02 and/or 03 of the LPM. The card’s main function is to provide a serial interface between the system and its ex- ternal equipment, such as the Maintenance Administration Terminal (MAT), Sta- tion Message Detail Recording System (SMDR), Message Center Interface (MCI), Property Management System (PMS), etc. Replacement Procedure AT T E N T I O NContents Static Sensitive Handling Precautions Required OPE lamp on the IOC card first flashes and then becomes red. All I/O ports are closed and the equipment, such as MAT and SMDR, loses connections. Note:The text data (such as billing information), registered before this step, will be safely transmitted later. However, the data, recorded after this step, will not be sent out, and instead is stored in the buffer. OPE lamp on the IOC card goes Extract the card from the LPR. A Turn ON the MB key on the card. Turn ON the MBR key on the IOC (PH-IO24) card to be replaced. Set the keys on the new card, referring to the card to be replaced. The equipment connected to the I/O ports of each card (MAT, SMDR, etc.) cannot be used while replacing the IOC card.AT T E N T I O N
CHAPTER 4 NDA-24238 Page 262 Revision 3.0 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE ATTENTIONContents Static Sensitive Handling Precautions Required OPE lamp on the IOC card is red. Release of I/O ports: new IOC card is initialized, and I/O port channels reopens. OPE lamp is green. Turn OFF the MB key on the card. END Insert the new card into the LPM. Turn ON the MB and MBR keys on the new card. Turn OFF the MBR key on the card. A
NDA-24238 CHAPTER 4 Page 263 Revision 3.0 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 1.3.4 Power Supply Unit Replacement Procedure ATTENTIONContents Static Sensitive Handling Precautions Required CPU System Changeover Refer to Section 12.1.2 in Chapter 6. Cable to be disconnected from OUTPWR CPU #0: 6P-(4P-3P) PWR CA-A CPU #1: 6P-(4P-3P) PWR CA-B START Set the mode of the PWR UNIT (PZ-PW92) to be replaced into STBY mode. On the EMA (PH-PC40) card, set EMA SUP switch UP. Turn OFF the SW key on the PWR UNIT. Disconnect the power cables from the OUTPWR connector and INPWR connector on the PZ-PW92. A Disconnect the power alarm cable from the PALM connector on the PZ-PW92. Cable Name to be disconnected CPU #0: 10AL-(110) FLT CA CPU #1: 10AL-(130) FLT CA Cable to be disconnected from INPWR CPU #0: 4P-2P PWR CA-A CPU #1: 4P-2P PWR CA-B PWR (PZ-PW92) FRONT VIEW SW ON OFF PALM -48V ON ALM OUTPWR INPWR