NEC Neax 2400 Ipx System Operations And Maintenance Manual
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NDA-24307 CHAPTER 4 Page 293 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE ATTENTIONContents Static Sensitive Handling Precautions Required END Insert the MMC card into the LPM. Set the MB key on the MMC card UP. A Set the MB key on the MMC card DOWN. Connect the disconnected cable to the KEY connector on the MMC card. Connect the disconnected cable(s) to the CNx connector(s) on the MMC card. OPE lamp on the MMC card goes OFF. OPE lamp on the MMC card lights a steady green.
CHAPTER 4 NDA-24307 Page 294 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 2. TSWM ACCOMMODATING CIRCUIT CARD REPLACEMENT PROCEDURE This section explains the procedure for replacing circuit cards mounted in the TSWM (TSWM0 in IMG1, TSWM1 in IMG2). 2.1 Precautions Use this procedure to replace a faulty circuit card with a spare or to check a spare card. There are the 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 TSWM. When a circuit card with a default switch setting is replaced with a spare card, always make the switch setting on the new circuit card the same 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, always use the field service kit for countermeasures against static electricity. Touching a circuit card without using the field service kit may destroy the card due to static electricity on the human body. 2.2 Circuit Card Mounting Face Layout Figure 4-10 shows the face layout of the circuit cards mounted in the TSWM. The circuit cards marked with * are optional. Figure 4-10 Circuit Card Mounting Face Layout of TSWM 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 MISC MISC MISC MISC DLKC0 Note 1 DLKC1 Note 1 GT0 GT1 TSW00 TSW01 TSW02 TSW03 TSW10 TSW11 TSW12 TSW13 PWR SW0 TSWM0/1 Slot No. PWR SW1MISCPLO0/CLK0 Note 2 * * * * * PLO1/CLK1 Note 2 PWRSW: PH-PW14 DLKC: PH-PC20 GT: PH-GT09 TSW: PH-SW12 PLO: PH-CK16-A CLK: PH-CK18FRONT VIEW Note 1:This card is mounted in TSWM0 only. Note 2:PLO is mounted in TSWM0, and CLK is mounted in TSWM1.
NDA-24307 CHAPTER 4 Page 295 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 2.3 Operating Procedures The following paragraphs explain the operating procedures to replace unit/circuit cards located in the TSWM. Perform the operations corresponding to each Reference Item specified in Table 4-2. Table 4-2 TSWM Circuit Cards and Reference Items CIRCUIT CARD FUNCTION NAMEREFERENCE ITEM REMARKS GTSection 2.3.1, GT Card Replacement Procedure TSWSection 2.3.2, TSW Card Replacement Procedure DLKCSection 2.3.3, DLKC Card Replacement Procedure PLOSection 2.3.4, PLO Card Replacement Procedure CLKSection 2.3.5, CLK Card Replacement Procedure PWR SWSection 2.3.6, PWR SW Card Replacement Procedure MISCSection 2.3.7, MISC Card Replacement Procedure Improper key operations may result in a system down. Operate the key using extreme care. During replacement of a circuit card, the system issues system messages and activates the related alarm. Reset the indicated alarm after completing the replacement procedure. If the indicated alarm is cleared via the RALM/RALMN command, the system also clears the contents of the system message. Before using the RALM/RALMN command, print the messages using the DFTD command. Use the ALM RST button on the TOPU only to reset the alarm lamps.WA R N I N G
CHAPTER 4 NDA-24307 Page 296 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 2.3.1 GT Card Replacement Procedure The GT (PH-GT09) card is mounted in Slot No. 10 or 11 within the TSWM0 and TSWM1. The card’s main function is to provide both MISC and I/O Local bus interface between the microprocessor of CPU and other lower echelons, such as DLKC, TSW and MUX cards. Follow the procedures below to replace a GT card with a spare. Note:To replace the GT card, the ACT/STBY status of GT must be changed over first. This must be done by operating the MBR key (or by using the CMOD/CMOD1 command) on the DSP of active CPR. Fi g ure 4-11 shows a system block diagram centering upon the CPU and its controlling GT. If the ACT/STBY of GT is to be changed over, the system of CPU must be manually changed over. For more details on the GT changeover, refer to Section 12, Chapter 6. Figure 4-11 System Block Diagram (Connections Between GT and CPU) 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 EMA: PH-PC40 IOC: PH-IO24 CLK: PH-CK18 LANILANI GT 0 TSW 00TSW 10TSW 01TSW 11 GT 1 EMAIOC/ MISC DLKC 0DLKC 1 PLO 0 PLO 1 CPR 0 LANILANICPR 1 MISC BUS TSW I/O BUS TSW I/O BUS Line/Trunk PM IMG 0 PM BUS PCM HW PCM HW PCM HW PCM HW MUXMUXMUXMUX ISAGT-BISAGT-B To GT0 in TSWM1 Line/Trunk PM IMG 1 PCM HW PCM HW PM BUS PCM HW PCM HW MUXMUXMUXMUX TSWM0 To GT1 in TSWM1 From PLO of ISWMTo CLK of TSWM1 ISAGT-AISAGT-A TSW 02TSW 03 TSW 12TSW 13 External Cables (ISW-LN TSW CA-n) External Cables (ISW-LN PLO CA-n)External Cables (PLO-CLK CA-n) To/From TSW of ISWMLN0/1/2/3 Fusion Link CPU 0CPU 1 Note 1:CLK (PH-CK18) card is mounted in TSWM1 in place of PLO card. Note 2:DLCK (PH-PC20) card is not mounted in TSWM1.
NDA-24307 CHAPTER 4 Page 297 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE GT Card Replacement Procedure Use extreme care when operating the keys on the DSP of CPR and PH-GT09 card. WAR NI NG System Changeover of GT from ACT to STBY mode. ATTENTIONContents Static Sensitive Handling Precautions Required Check the following lamp indications on the GT card to be replaced and on the DSP CPR that controls the GT: OPE/MB (GT card) = OFF CPU OPE (CPU DSP) = OFF IMG0 (CPU DSP) = Flash (green) IMG1-3 (CPU DSP) = OFF Check the following lamp indications on the mate GT card and the DSP of the mate CPR: OPE/MB (GT card) = Steady-green CPU OPE (CPU DSP) = Steady- green IMG0-3 (CPU DSP) = Flash (green) Note:Lamp indications of IMG 2-3 vary depending on the system configuration. EMA SUP lamp on the EMA card lights steady-green. GT (PH-GT09) OPE/MB MBR MB IMG1 IMG2 IMG3 CPUOPE WDT IMG0 12 34 567 8 OFF 12 34 567 8 OFF 12 34 OFF MBR FRONT VIEWDSP ON 4C026AE A Confirm the mate GTs ACT mode. START On the EMA (PH-PC40) card, set the EMA SUP key UP. On the DSP of active CPR in the LN, turn ON the MBR key. Turn OFF the MBR key again.
CHAPTER 4 NDA-24307 Page 298 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE ATTENTIONContents Static Sensitive Handling Precautions Required OPE/MB lamp on the GT card remains OFF. OPE/MB lamp on the new card is OFF. OPE/MB lamp on the new card remains OFF. B Set the MBR and MB keys on the new card UP. A Set the MB key on the new card DOWN. Insert the new GT card into the TSWM.Extract the GT card to be replaced from the TSWM0/1. Set the MBR Key on the new card DOWN. On the GT card to be replaced, set the MB switch UP. On the GT card to be replaced, set the MBR switch UP.
NDA-24307 CHAPTER 4 Page 299 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE EMA SUP lamp on the EMA card goes OFF. System Changeover Replaced GT: STBY to ACT Mate GT: ACT to STBY Check the following lamp indications on the new GT card and the DSP of the CPR which controls the GT. OPE/MB (GT card) = Steady-green CPU OPE (CPU DSP) = Steady-green IMG0 (CPU DSP) = Flash (green) IMG1-3 (CPU DSP) = Flash (green) Note:IMG2-3 lamp indications may vary depending on the system configuration. Check the following lamp indications on the mate GT card and the DSP of the mate CPR: OPE/MB (GT card) = OFF CPU OPE (CPU DSP) = OFF IMG0 (CPU DSP) = Flash (green) IMG1-3 (CPU DSP) = OFF ATTENTIONContents Static Sensitive Handling Precautions Required END B Flip the MBR key on the DSP of CPU which controls the mate GT. Confirm the new GT functions normally. On the EMA card, set the EMA SUP switch DOWN.
CHAPTER 4 NDA-24307 Page 300 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 2.3.2 TSW Card Replacement Procedure The TSW (PH-SW12) card is mounted in the Slot Nos. ranging from 12 to 19 within the TSWM0/1. Equipped with the Time Division Switch (TSW) and Speech Path Controlling Interface (INT), the card’s main function is to provide the Time Slot (TS) switching for a specific IMG or to provide the PCM data link with the ISW. If the TSW card is used in a dual configuration, the card’s replacement procedures are as follows: Note:To replace a TSW card in dual configuration, the system of the card must be changed over from ACT to STBY mode. The changeover can be done by flipping the MBR key on the active IOGT (PH-GT10) card in ISWM or by using the CMODI command. For more details, refer to Section 12, Chapter 6. Figure 4-12 provides the system block diagram centering upon the speech path between ISW and LN. If the system of TSW in ISW is changed over, the ACT/STBY of IOGT, HSW (mounted in ISW) and TSW, DLKC and MUX (mounted in the LN) in the same switching block are also changed over.
NDA-24307 CHAPTER 4 Page 301 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE Figure 4-12 Syste m Bloc k Diag ram (TSW and Ot her Speech Path Echelo ns) < 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 HWPM BUS PCM HWPM BUS PCM HWPM BUS PCM HW MUXMUXMUXMUX MISCIOCEMA TSW00TSW01TSW02TSW03 GT ISAGT-B Note :ISW-LN TSW CA-n Cables Note
CHAPTER 4 NDA-24307 Page 302 Issue 1 UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE 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 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 TSW 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 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. On the active IOGT (PH-GT10) card in ISWM, set the MBR key UP. Then, return the key DOWN.