NEC Neax 2400 Imx System Operations And Maintenance Manual

CHAPTER 4 NDA-24238
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Revision 3.0
UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
[Circuit Card Accommodation into the New CPR]
The steps below show the procedure to install the new CPR into the LPM.
STEP  1 Using the Phillips Screwdriver, remove the 4 + 8 screws. Then, detach the
front panel and top cover from the new CPR. (Refer to Figure 4-4)
Figure 4-4   Removal of Front Panel and Top Cover from CPR
ATTENTIONContents
Static Sensitive
Handling
Precautions Required
Top Cover
CPRFront Panel
As shown in...

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UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
STEP 2 Insert the ISAGT (PZ-GT13) and LANI (PZ-PC19) cards into the 
following slots of the new CPR (refer to Figure 4-5):
ISAGT (PZ-GT13) →Slot #6 (ISA)
LANI (PZ-PC19) →Slot #0 (PCI)(For Fusion 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 Fusion Link is in dual configuration)
Note
Figure 4-5   Insertion of ISAGT and LANI Cards...

CHAPTER 4 NDA-24238
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UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
STEP 3 Reattach the top cover and front panel by fastening the removed screws.
(Refer to Figure 4-6)
Figure 4-6   Reattachment of CPR Top Cover and Front Panel
ATTENTIONContents
Static Sensitive
Handling
Precautions Required
After mounting the ISAGT/LANI cards, reattach the top cover by tightening the 8 screws. 
Then, attach the Front Panel by fastening the 4 screws.
Top Cover
CPRFront Panel 

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UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
STEP 4 After turning “ON” the MBR key on the DSP of the new CPR, insert the
new CPR into the LPM. Then, fasten the retained four screws. (Refer to
Figure 4-7)
Figure 4-7   Accommodation of New CPR into LPM
ATTENTIONContents
Static Sensitive
Handling
Precautions Required
CPR LPM
As shown in Figure 4-7, insert the new CPR into the LPM. Then, fasten the four screws. 

CHAPTER 4 NDA-24238
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UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
STEP 5 Insert the new HFD into the CPR. Then, fasten the two screws. 
(Refer to Figure 4-8)
Figure 4-8   Insertion of New HFD into CPR
ATTENTIONContents
Static Sensitive
Handling
Precautions Required
By using the two screws, fasten the new HFD onto the CPR.
LPM
HFD (PZ-IO27/PZ-IO28) 

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UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
Replacement Procedure
 System Changeover of the CPU 
from ACT to STBY mode.
 IMG0 lamp on the DSP begins to 
flash green.
 Check the mate CPU’s lamp 
indications:
CPU OPE=Steady green
IMG0, IMG1, IMG2, IMG3=Flash 
green
 EMA SUP lamp on the EMA card is 
green.
Cable Name to be disconnected
CPU #0: 10AL-(110) FLT CA
CPU #1: 10AL-(130) FLT CA
START
Make a backup copy of the main data (office data, 
CF/SPD data, etc.) onto...

CHAPTER 4 NDA-24238
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UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
ATTENTIONContents
Static Sensitive
Handling
Precautions Required
 Refer to Figure 4-2 for CPR 
face layout.
 Refer to Figure 4-2 for CPR 
face layout.
 Refer to Figure 4-3 to replace
the CPU.
Cables to be disconnected
Ether cable: UTP CTG5 ST CA-n
Note:
 The kind of Ethernet cable may vary, 
Disconnect power cables from the OUTPWR
connector and INPWR connector on PZ-PW92.
Disconnect Ethernet cables from the front...

NDA-24238 CHAPTER 4
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UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
ATTENTIONContents
Static Sensitive
Handling
Precautions Required
 Refer to Figure 4-3 to replace
the CPU.
 Refer to Circuit Card Installation
Into New CPR procedure in this
section.
Turn ON the MBR key on the DSP of 
the new CPR.
C
B
Extract the CPR from the LPM.
Mount ISAGT (PZ-GT13) and LANI (PZ-PC19)
cards onto the new CPR. Then, insert the new
CPR into the LPM.
IMG1 IMG2 IMG3 CPUOPE WDT IMG0
12
34
567
8
OFF
12
34
567...

CHAPTER 4 NDA-24238
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UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
ATTENTIONContents
Static Sensitive
Handling
Precautions Required
Note: Do not connect the cable for the 
Connect the disconnected bus cables
to the connectors on the PZ-GT13.
Turn ON the SW key on PZ-PW92.
Connect the disconnected power alarm cable
to the PALM connector on PZ-PW92.
D
C
Connect the disconnected and Ethernet cables
Connect the disconnected power cables to 
the OUTPWR and INPWR connectors.
PALM connector yet....

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UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
ATTENTIONContents
Static Sensitive
Handling
Precautions Required
 EMA SUP lamp on the EMA card 
goes OFF.
 IMG0 lamp on the DSP flashes 
green.
Flip the MBR key on the DSP of the new 
CPR from ON to OFF.
END
D
Turn OFF the EMA-SUP key on the EMA
(PH-PC40) card.
Confirm that IPL has completed successfully.
Initial Program Load (IPL) 
starts automatically.
MBR(DSP)
123
IMG1 IMG2 IMG3 CPUOPE WDT IMG0
12
34
567
8
OFF
12
34...