NEC Neax 2400 Ipx System Operations And Maintenance Manual
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NDA-24307 CHAPTER 4 Page 283 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE (5) Insert the new HFD (PZ-IO27) into the CPR. Then, fasten the two screws as shown in Figure 4-8. Figure 4-8 Insertion of New HFD Into CPR ATTENTIONContents Static Sensitive Handling Precautions Required LPM HFD (PZ-IO27/PZ-IO28)
CHAPTER 4 NDA-24307
Page 284
Issue 1
UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
(6) Make sure Switch 8 of SYSTEM SELECT 1 (DIP Switch) on each CPU Front Panel
is set to ON. (Do this for all LNs and ISW: Refer to Figure 4-9.)
Figure 4-9 Switch Setting on the CPU Front Panel
ATTENTIONContents
Static Sensitive
Handling
Precautions Required
12
34
567
8
OFF
12
34
OFF
MBR
FDD ON
OFF
PALM
ON
OFF OUT PWR
IN PWR5AHDD SW
MB
SYSTEM SELECT0
SENSE
SYSTEM SELECT2
CPURST
SLOT No. 0 1 2 3 4 5 6 STATUS IMG1 IMG2 IMG3 CPUOPE
WDTIMG0
ON
ON
SYSTEM SELECT112
34
567
8
OFFON4C026AE
12
34
567
8
OFF
12
34
567
8
OFF
12
34
OFF
MBR
FDD ON
OFF
ON
OFF OUT PWR
IN PWR5AHDD SW
MB
SYSTEM SELECT0
SENSE SYSTEM SELECT1
SYSTEM SELECT2
CPURST
SLOT No. 0 1 2 3 4 5 6 STATUS IMG1 IMG2 IMG3 CPUOPE
WDTIMG0
ON
ON
ON4C026AE
00 01 02 03 04
MMC (PH-M22) MISC/IOC IOC(PH-IO24) EMA(PH-PC49)
MISC
LPMCPR1
LANI(PZ-PC19)ISAGT(PZ-GT13)
ISAGT(PZ-GT20)
Note
PALMCPR0
FRONT VIEW
Note: PZ-GT20 card is mounted in LN only.SYSTEM SELECT1
12
34
567
8
OFF
ON
NDA-24307 CHAPTER 4 Page 285 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 1.3.2 EMA Card Replacement Procedure The EMA (PH-PC40) card is mounted in slot No. 04 of the LPM. The main functions of the card are as follows: Designation of ACT/STBY status of the CPU and forced changeover of the system Shutoff of the system’s power supply and detection of rising temperature within the system Control of the NCU (PA-M53) card Replacement Procedure ATTENTIONContents Static Sensitive Handling Precautions Required ATTENTIONContents Static Sensitive Handling Precautions Required Before replacing the EMA card, check the CPU 0’s ACT mode. Attempting to replace the card when the CPU 1 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 Flip the MBR key on the DSP 1 (ON (System Changeover of CPU 1: ACT STBY) Extract the EMA card from the LPM. CPU 1 is Active? YES NO OFFON
CHAPTER 4 NDA-24307 Page 286 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE ATTENTIONContents Static Sensitive Handling Precautions Required OPE/MB Lamp on the EMA card lights steady-green. The 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/ATIMN END A Set the keys on the new card by referring to the Insert the new card into the LPM.card being replaced. command.
NDA-24307 CHAPTER 4 Page 287 Issue 1 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 external equipment, such as the Maintenance Administration Terminal (MAT), Station Message Detail Recording System (SMDR), Message Center Interface (MCI), Property Management System (PMS), etc. AT T E N T I O NContents Static Sensitive Handling Precautions Required OPE lamp on the IOC card first flashes and then lights red. All I/O ports are closed and the equipment, such as MAT and SMDR, loses connections. Note:The text data (such as bill- ing 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 OFF. Extract the card from the LPM. 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. START 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-24307 Page 288 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE ATTENTIONContents Static Sensitive Handling Precautions Required OPE lamp on the IOC card lights red. Release of I/O ports: new IOC card is initialized, and I/O port channels reopens. OPE lamp lights 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-24307 CHAPTER 4 Page 289 Issue 1 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, 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
CHAPTER 4 NDA-24307 Page 290 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE ATTENTIONContents Static Sensitive Handling Precautions Required END Insert the new PWR UNIT into the CPR. Unscrew the PWR UNIT from the CPR. Turn ON the SW key on the PWR UNIT. A On the EMA card, set EMA SUP switch DOWN. Reattach power alarm cable to the PALM connector on the PZ-PW92.Reattach power cables to OUTPWR and INPWR connectors on the PZ-PW92.
NDA-24307 CHAPTER 4 Page 291 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 1.3.5 MISC Card Replacement Procedure ATTENTIONContents Static Sensitive Handling Precautions Required Keep MB switch UP. END Extract the MISC card from its mounting slot. On the MISC card, set MB switch UP. On the MISC card, set MB switch DOWN. START Insert the new circuit card into the same mounting slot.
CHAPTER 4 NDA-24307 Page 292 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 1.3.6 MMC Card Replacement Procedure The MMC (PH-M22) card is mounted in slot No. 00 of the LPM. The card’s main functions are: To collect key setting information on the TOPU of each LN/ISW. Note To collect alarm information on LN or the entire system (in case of MMC in ISW), thereby activating MJ/MN LED on the TOPU display. Note:If the key setting affects the entire system (i.e. the SYSTEM side is selected by the INITIAL SELECT key on the ISW TOPU). The information is broadcast to the MMC of ISW including the MMC of all existing LNs. Replacement Procedure AT T E N T I O NContents Static Sensitive Handling Precautions Required OPE lamp on the MMC goes off. A Disconnect the cable from the KEY connector Set the MB key to UP on the MMC (PH-M22) START card the be replaced. on the MMC card. Cable to be disconnected 10AL-(400) FLT CA Disconnect the whole cable(s) from the CNx connector(s) on the MMC card. Cable to be disconnected MT24 MISC CA-n Extract the MMC card from the LPM.Note: The connector and cable names vary depending on it’s connecting conditions.