NEC Neax 2400 Ipx System Operations And Maintenance Manual
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![Page 337
NDA-24307 CHAPTER 4
Page 309
Issue 1
UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
OPE lamp on the new card is OFF.
OPE lamp on the new card remains
OFF.
(Mate PLO = ON [green])
ATTENTIONContents
Static Sensitive
Handling
Precautions Required
END
A
Insert the new PLO card into the TSWM0. On the new PLO card, set the MB key UP.
Set the MB key on the new card DOWN.](http://img.usermanuals.tech/thumb/54/84234/w64_nec-ipx-system-op-and-maint-ipx-u-type_d-336.png "Page 337
NDA-24307 CHAPTER 4
Page 309
Issue 1
UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
OPE lamp on the new card is OFF.
OPE lamp on the new card remains
OFF.
(Mate PLO = ON [green])
ATTENTIONContents
Static Sensitive
Handling
Precautions Required
END
A
Insert the new PLO card into the TSWM0. On the new PLO card, set the MB key UP.
Set the MB key on the new card DOWN.")
![Page 338
CHAPTER 4 NDA-24307
Page 310
Issue 1
UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
2.3.5 CLK Card Replacement Procedure
The CLK (PH-CK18) card is mounted in Slot No. 21 or 23 within the TSWM1. The card’s main
function is to supply basic clock signals to IMG2/3. This card receives clock signs from the PLO
located in TSWM0, thereby distributing the supplied 32,768 MHz CLK, 8 KHz FH (5msec x “n” FH
[for Wireless system]), PLO ACT signals and Hold tone to the TSW located in TSWM1. Use the
procedures below to...](http://img.usermanuals.tech/thumb/54/84234/w64_nec-ipx-system-op-and-maint-ipx-u-type_d-337.png "Page 338
CHAPTER 4 NDA-24307
Page 310
Issue 1
UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
2.3.5 CLK Card Replacement Procedure
The CLK (PH-CK18) card is mounted in Slot No. 21 or 23 within the TSWM1. The card’s main
function is to supply basic clock signals to IMG2/3. This card receives clock signs from the PLO
located in TSWM0, thereby distributing the supplied 32,768 MHz CLK, 8 KHz FH (5msec x “n” FH
[for Wireless system]), PLO ACT signals and Hold tone to the TSW located in TSWM1. Use the
procedures below to...")
![Page 339
NDA-24307 CHAPTER 4
Page 311
Issue 1
UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
OPE lamp on the new card is OFF.
OPE lamp on the new card remains
OFF.
(Mate CLK = ON [green])
ATTENTIONContents
Static Sensitive
Handling
Precautions Required
END
A
Insert the new CLK card into the TSWM1. On the new CLK card, set the MB key UP.
Set the MB key on the new card DOWN.](http://img.usermanuals.tech/thumb/54/84234/w64_nec-ipx-system-op-and-maint-ipx-u-type_d-338.png "Page 339
NDA-24307 CHAPTER 4
Page 311
Issue 1
UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
OPE lamp on the new card is OFF.
OPE lamp on the new card remains
OFF.
(Mate CLK = ON [green])
ATTENTIONContents
Static Sensitive
Handling
Precautions Required
END
A
Insert the new CLK card into the TSWM1. On the new CLK card, set the MB key UP.
Set the MB key on the new card DOWN.")
NDA-24307 CHAPTER 4 Page 313 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 2.3.7 MISC Card Replacement Procedure ATTENTIONContents Static Sensitive Handling Precautions Required Keep MB switch UP. END START Extract the MISC card from its mounting slot. Insert the new circuit card into the same mounting slot. On the MISC card, set MB switch DOWN. On the MISC card, set MB switch UP.
CHAPTER 4 NDA-24307 Page 314 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 3. PIM ACCOMMODATING CIRCUIT CARD REPLACEMENT PROCEDURE This Section covers the procedures for replacing circuit cards accommodated in the PIM (IMG0/1/2/3). 3.1 Precaution This procedure is applied when replacing a faulty circuit card with a spare. It is also able to be applied when checking a spare card. There are functional switches (having set the default switch) on some of the circuit cards to be replaced. As for switch setting on the circuit cards, confirm the circuit card mounting face layout for the PIM. When a circuit card which has default switch setting has been replaced with a spare card, be sure to make switch setting on the new circuit card in the same way as on the replaced card. Otherwise, electronic components on the circuit card may be destroyed or the circuit card itself may fail to function normally. When handling a circuit card, be sure to use the field service kit as countermeasures against static electricity. If you touch a circuit card without using the field service kit, electronic components like an IC on the card may be destroyed by the static electricity electrified on the human body. 3.2 Circuit Card Mounting Face Layout The face layout of circuit cards mounted in the PIM is shown in Figure 4-14. Figure 4-14 Circuit Card Mounting Face Layout of PIM 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 LC/TRK LC/TRK LC/TRK LC/TRK LC/TRK LC/TRK LC/TRK LC/TRK LC/TRK MUX0 MUX1 LC/TRK LC/TRK LC/TRK LC/TRK LC/TRK LC/TRK LC/TRK LC/TRK LC/TRKPWR1 PWR0 PIM Slot No.Universal Slots Universal Slots Note:This Section also covers the procedure to replace the SDT (PA-SDTA/PA-SDTB) card. The card can be mounted in any of the universal slots (slots 04-12 or 15-23). Improper key operations may result in a system down. Operate the keys with extreme care. By replacing a circuit card, the system will issue system messages and activate the related alarm. Be sure to reset the indicated alarm after the replacement procedure is complete. If the indicated alarm is cleared via the RALM/RALMN command, the system also clears the whole contents of the system message. Be sure to print out the messages (by using the DFTD command) BEFORE using the RALM/RALMN command. ALM RST button on the TOPU is used to reset the alarm lamps only.WARNING
NDA-24307 CHAPTER 4 Page 315 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 3.3 Operating Procedures The following sections provide operating procedures to replace circuit cards mounted in the PIM. Perform the operations corresponding to each Reference Item specified in Table 4-3. The procedures assume that the system adopts the dual configuration. Table 4-3 PIM Circuit Cards and Reference Items CIRCUIT CARD FUNCTION NAMEREFERENCE ITEM REMARKS LC/TRKSection 3.3.1, LC/TRK Circuit Card Replacement Procedure MUXSection 3.3.2, MUX Card Replacement Procedure PWRSection 3.3.3, PWR Card Replacement Procedure HUBSection 3.3.4, HUB Circuit Card Replacement Procedure SDTSection 3.3.5, SDT Card Replacement Procedure
CHAPTER 4 NDA-24307 Page 316 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 3.3.1 LC/TRK Circuit Card Replacement Procedure ATTENTIONContents Static Sensitive Handling Precautions Required Keep MB switch set at UP. END START Extract the circuit card from its mounting slot. On the circuit card to be replaced, set the MB switch UP. Insert the new card into its mounting slot. On the new card, set MB switch DOWN.
NDA-24307 CHAPTER 4 Page 317 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 3.3.2 MUX Card Replacement Procedure The MUX (PH-PC36) card is mounted in Slot No. 13 and/or 14 of each Port Interface Module (PIM). The card’s main function is to provide an interface between the CPR and Port Microprocessor (PM) of the line/trunk circuit, and also to provide an interface for multiplexing/de-multiplexing of voice Pulse Code Modulation (PCM) information and digital data information. Use the procedures below to replace the MUX card with a spare: Note:Execute the system changeover of MUX by using the MBR key operation on the active IOGT (PH-GT10) card or by using the CMODI command. Before starting this task, be sure to confirm the system block diagram shown in Figure 4-12, or Section 12, Chapter 6. MUX Card Replacement Procedure Apply extreme care when operating the keys on the circuit cards. WA RN I NG ATTENTIONContents Static Sensitive Handling Precautions Required System Changeover. Check the following lamp indications on the circuit cards to be affected and ensure that 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) Note MUX ACT (MUX cards) Note: If the MUX card to be replaced represents system status 0, all the circuit cards with 0 status are totally affected. Check the whole cited cards lamp indications. (See Figure 4-12 and Figure 4-13.) Check the following lamp indications on the mate Speech Path block and ensure that 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) MUX ACT lamp on the MUX card lights red. A START On the active IOGT (PH-GT10) card in ISWM, set the MBR key UP. Then, return the key DOWN. Check the ACT mode of the mate Speech Path On the MUX (PH-PC36) card to be replaced, Set the MB switch UP. System.
CHAPTER 4 NDA-24307 Page 318 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE MUX ACT lamp on the new card lights red. ATTENTIONContents Static Sensitive Handling Precautions Required B Insert the new card into the PIM. A On the new card, set the MB key UP. Extract card to be replaced from the mounted PIM. Disconnect the cable for the MUX front connector on the card to be replaced. Connect the disconnected cable to the MUX front connector on the new card. Referring to the replaced card, set the keys on the new card.
NDA-24307 CHAPTER 4 Page 319 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE Note: This procedure assumes the Speech Path mode change is executed totally on a system basis. If the change is required on a node basis, use the MBR key on that node’s GT (PH-GT09) card or CMODI/ CMOD command. For more details, refer to Section 12, Chapter 6. ATTENTIONContents Static Sensitive Handling Precautions Required System Changeover Replaced MUX: STBY to ACT Mate MUX: ACT to STBY Check the following lamp indications on the Speech Path block to which the new MUX card belongs and ensure that they 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 Speech Path block and ensure that 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) (Refer to Figure 4-12 and Figure 4-13.) END B Flip the MBR key on the active IOGT card. Confirm the new MUX card functions normally. On the new MUX card, set the MB key DOWN. Verify that the SYNC LED on the new card lights green. MBR (on the active IOGT card of ISW) 12
CHAPTER 4 NDA-24307 Page 320 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 3.3.3 PWR Card Replacement Procedure The PWR (PA-PW55-A/PA-PW55-B) and DPWR (PA-PW54-A/PA-PW54-B) cards are mounted re- spectively in Slot No. 1 and Slot No. 3 of each PIM. The card’s main function is to provide operating power to the circuit cards accommodated in the PIM. The procedures to replace the PWR/DPWR card are as follows. Replacement Procedure OPE lamp on the card goes OFF. A Turn OFF the -48V SW on the card to be replaced. Turn ON the MB key on the PWR/DPWR card to be replaced. Turn OFF the -48V SW on the new card. Extract the card to be replaced. Disconnect the power cable from the -48V IN connector. AT T E N T I O NContents Static Sensitive Handling Precautions Required
NDA-24307 CHAPTER 4 Page 321 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE ATTENTIONContents Static Sensitive Handling Precautions Required OPE lamp on the new card is OFF. OPE lamp on the new card lights green. END A Insert the new card into the PIM. Turn OFF the MB key on the card. Turn ON the -48V SW on the new card. Connect the power cable to the -48V IN connector. Turn ON the MB key on the new card.
CHAPTER 4 NDA-24307 Page 322 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 3.3.4 HUB Circuit Card Replacement Procedure The HUB (PA-M96) card is mounted in any universal slot of the PIM. This card provides the repeater function based on ANSI/IEEE820.3.8. This card is also equipped with eight ports for 10 BASE-T cable connection used for establishing Ethernet Link and/or connecting the MAT. HUB Card Replacement ProcedureReplacement of a HUB card may result in a temporary shutoff of the Ethernet link. If this is the case, take appropriate measures, such as CPU mode changeover, arrangement of 10 BASE- T cable connection, etc, may be necessary. WA RN I NG Use extreme care when operating the keys on the circuit cards.WA RN I NG CPU mode change: Refer to Section 12, Section 6. A START Check the lamp indication of the mate HUB card. If replacement affects current Ethernet status, Disconnect the 10 BASE-T cables from the front connectors of the HUB card to be replaced AT T E N T I O NContents Static Sensitive Handling Precautions Required On the HUB (PA-M96) card to be replaced, set the MB key up.OPE lamp on the card goes OFF. ensure CPU mode change or arrangement of 10 BASE-T cable connection. OPE lamp on the mate HUB card lights steady-green.