NEC Neax 2400 Ipx System Operations And Maintenance Manual
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NDA-24307 CHAPTER 2 Page 33 Issue 1 SYSTEM MAINTENANCE OUTLINE Figure 2-23 General Block Diagram of the Whole System (2/2) TSWM0TSWM1 TSWM0TSWM1 MISCIOCEMA HSW PLO MISCIOCEMA MISCIOCEMA PLO GT ISAGT-B TSW00TSW01TSW02TSW03 TSW00TSW01TSW02TSW03 TSW00TSW01TSW02TSW03 TSW00TSW01TSW02TSW03 IOGT ISAGT CPU LANI GT ISAGT-A CPULANI Fusion Link ISWLN2LN3 To TSW of LN0To TSW of LN1 To PLO of LN0/1 DLKC GT ISAGT-A GT ISAGT-B CPULANI TSW00TSW01TSW02TSW03 DLKCPLOCLK To MUX (IMG0)To MUX (IMG1) To MUX (IMG0)To MUX...
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CHAPTER 2 NDA-24307 Pag e 3 4 Issue 1 SYSTEM MAINTENANCE OUTLINE Figure 2-24 CPU Controlling Block Diagram (ISW) LPM of ISW EMAIOC / MISC ISAGT 0 LANI PWR PWR CPU 0 MEMORY PCI BUSISA BUS CPU board CPR CPU clock CPR (ST-BY)Reset Signal (ST-BY) MISC BUS MISC BUS T M IOGT 1IOGT 0IOP1IOP0 ISAGT 1CPU board T M Fusion Link PLO 0 PLO 1 MISC BUS MISC BUS To TSWM1 of LN3 To TSWM0 of LN3 To TSWM1 of LN2 To TSWM0 of LN2 To TSWM1 of LN1 To TSWM0 of LN1 000 001 002 003 004 005 006 007 008 009 00A 00B 00C 00D 00E...
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NDA-24307 CHAPTER 2
Page 35
Issue 1
SYSTEM MAINTENANCE OUTLINE
Figure 2-25 CPU Controlling Block Diagram (LN)
EMAIOC /
MISCLANI
PWR
PWR
CPU 0
MEMORY
PCI BUSISA BUS
CPU board CPR
CPU clock
Reset Signal
(ST-BY)
MISC BUS
MISC BUS
TSWM 1 of LN0
TSW 00TSW 01TSW 11TSW 10
CLK 0CLK 1
GT 1
GT 0IOP1
IOP0
TSW/INT TSW/INT TSW/INTTSW/INT
MUXMUXMUXMUXMUXMUXMUXMUXMUXMUXMUXMUXMUXMUXMUXMUXTSW
02
TSW/
INT
TSW
03
TSW/
INT
TSW
13
TSW/
INT
TSW
12
TSW/
INT
TSW I/O
MISC BUS MISC BUS
BUS
TSW...
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CHAPTER 2 NDA-24307 Pag e 3 6 Issue 1 SYSTEM MAINTENANCE OUTLINE Figure 2-26 Speech Path Block Diagram (1/2) ISWM MUXMUXLC/TRKPIM0 IMG0 of LN0 PIM1MUXMUXLC/TRK PIM2MUXMUXLC/TRK PIM3MUXMUXLC/TRK MUXMUXLC/TRKPIM0 IMG1 of LN0 PIM1MUXMUXLC/TRK PIM2MUXMUXLC/TRK PIM3MUXMUXLC/TRK MUXMUXLC/TRKPIM0 IMG2 of LN0 PIM1MUXMUXLC/TRK PIM2MUXMUXLC/TRK PIM3MUXMUXLC/TRK MUXMUXLC/TRKPIM0 IMG3 of LN0 PIM1MUXMUXLC/TRK PIM2MUXMUXLC/TRK PIM3MUXMUXLC/TRK - Symbols - : Cable: Circuit card (ACT) : Circuit card (ST-BY) :...
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NDA-24307 CHAPTER 2 Page 37 Issue 1 SYSTEM MAINTENANCE OUTLINE Figure 2-26 Speech Path Block Diagram (2/2) ISWM MUXMUXLC/TRKPIM0 IMG0 of LN2 PIM1MUXMUXLC/TRK PIM2MUXMUXLC/TRK PIM3MUXMUXLC/TRK MUXMUXLC/TRKPIM0 IMG1 of LN2 PIM1MUXMUXLC/TRK PIM2MUXMUXLC/TRK PIM3MUXMUXLC/TRK MUXMUXLC/TRKPIM0 IMG2 of LN2 PIM1MUXMUXLC/TRK PIM2MUXMUXLC/TRK PIM3MUXMUXLC/TRK MUXMUXLC/TRKPIM0 IMG3 of LN2 PIM1MUXMUXLC/TRK PIM2MUXMUXLC/TRK PIM3MUXMUXLC/TRK - Symbols - : Cable : Circuit card (ACT) : Circuit card (ST-BY) : Speech...
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CHAPTER 2 NDA-24307 Pag e 3 8 Issue 1 SYSTEM MAINTENANCE OUTLINE Figure 2-27 Speech Path Range of Fault MUX A fault within this range affects this module. 32ch A fault within this range affects the circuit card.A fault within this range affects two slots. PIM 3 A fault within this range affects this module. 32ch A fault within this range affects the circuit card.A fault within this range affects two slots. PIM 3 A fault within this range affects this module. 32ch A fault within this range affects...
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NDA-24307 CHAPTER 2 Page 39 Issue 1 SYSTEM MAINTENANCE OUTLINE 2.8 Explanation of Terms C-Level Infinite Loop The program repeatedly executes specific routines due to a fault of the main memory, data destruction, etc. The program is not able to be processed normally. This faulty condition is referred to as Program Infinite Loop. C-Level infinite loop is a state where a clock-level program, which runs under clock interrupt disable state, is in an infinite loop status. B-Level Infinite Loop This is a...
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CHAPTER 2 NDA-24307 Pag e 4 0 Issue 1 SYSTEM MAINTENANCE OUTLINE PM (Line/Trunk Card) Make-Busy Restart In this processing, the faulty PM (Line/Trunk Card) is isolated from the system and, at the same time, the calls associated with that faulty PM (Line/Trunk Card) are released. No calls related to the faulty PM (Line/Trunk Card) are processed and the system normally runs without the faulty PM (Line/Trunk Card). Data Copy Restart In a system of dual CPU configuration, the RAM memory (including the data...
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NDA-24307 CHAPTER 2 Page 41 Issue 1 SYSTEM MAINTENANCE OUTLINE 3. HOW TO READ PRECAUTIONS, DIAGNOSTIC, AND FAULT REPAIR INFORMATION 3.1 Precaution about Diagnostic Procedure/Fault Repair Procedure When performing diagnostic procedures/fault repair procedures, be aware of the following actions: (1) When replacing a circuit card with a spare, handle the circuit card using the Field Service Kit. (a) To protect the circuit card from static electricity, wear a wrist strap before handling the circuit card. (b)...
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CHAPTER 2 NDA-24307 Pag e 4 2 Issue 1 SYSTEM MAINTENANCE OUTLINE Figure 2-29 How to Hold a Circuit Card (3) When a circuit card appears to be faulty, check the following items before replacing it with a spare: (a) Poor connector contact at the circuit card may be responsible for the fault. Repeat insertion and extraction of the circuit card a few times. Clean the connector portion, and recheck for proper operation. (b) Check the lead wires of vertically-mounted parts (resistors, capacitors, etc.) to...