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NEC Neax 2400 Ipx System Operations And Maintenance Manual

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    							NDA-24307 CHAPTER 3
Page 73
Issue 1
SYSTEM MESSAGES
This message displays when the system detects any failure at the HSW in both systems.
➀ HSW detected as faulty
➁ System status at the time of fault 
detection
➂ Wire Address
➃ Write Data
➄ Read Data
See Chapter 5 for repair procedure.
1: XXXX XXXX XXXX XX00 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
➀ ➁ ➂ ➃➄
4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000
7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000
b0
b7 b6 b4 b3 b2 b0
Default Alarm:
MN1-GBoth HSW FailureDefault Grade:
3Grade Modified: Lamp Modified:
b0: 0/1 = No. 0 system / No. 1 system
b0: HSW No. (0-1)
b2-b3: Kind of TSW
10 = Second Switching
b4: HSW No. (0-1)
b6: Speech Path in ACT state 
0/1 = No. 0 system/No. 1 system
b7: Base clock in ACT state
Data analyzed by NEC Engineers.
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    							CHAPTER 3 NDA-24307
Pag e 7 4
Issue 1
SYSTEM MESSAGES
This message displays when the system detects any failure at the HSW in one of the dual systems.
➀ HSW detected as faulty
➁ System status at the time of fault 
detection
➂ Wire Address
➃ Write Data
➄ Read Data
See Chapter 5 for repair procedure.
1: XXXX XXXX XXXX XX00 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
➀ ➁ ➂ ➃➄
4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000
7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000
b0
b7 b6 b4 b3 b2 b0
Default Alarm:
MN1-HHSW FailureDefault Grade: Grade Modified: Lamp Modified:
b0: 0/1 = No. 0 system / No. 1 system
b0: HSW No. (0-1)
b2-b3: Kind of TSW
10 = Second Switching
b4: HSW No. (0-1)
b6: Speech Path in ACT state 
0/1 = No. 0 system/No. 1 system
b7: Base clock in ACT state
Data analyzed by NEC Engineers.
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    							NDA-24307 CHAPTER 3
Page 75
Issue 1
SYSTEM MESSAGES
This message displays when the link information cannot be written into the switch memory of the HSW card
in both systems.
➀ HSW detected as faulty
➁ System status at the time of fault 
detection
➂ Wire Address
➃ Write Data
➄ Read Data
See Chapter 5 for repair procedure.
1: XXXX XXXX XXXX XX00 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
➀ ➁ ➂ ➃➄
4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000
7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000
b0
b7 b6 b4 b3 b2 b0
Default Alarm:
MN1-IBoth HSW Write FailureDefault Grade:
2Grade Modified: Lamp Modified:
b0: 0/1 = No. 0 system / No. 1 system
b0: HSW No. (0-1)
b2-b3: Kind of TSW
10 = Second Switching
b4: HSW No. (0-1)
b6: Speech Path in ACT state 
0/1 = No. 0 system/No. 1 system
b7: Base clock in ACT state
Data analyzed by NEC Engineers.
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    							CHAPTER 3 NDA-24307
Pag e 7 6
Issue 1
SYSTEM MESSAGES
This message displays when the link information cannot be written into the switch memory of the HSW card
in one of the dual systems.
➀ HSW detected as faulty
➁ System status at the time of fault 
detection
➂ Wire Address
➃ Write Data
➄ Read Data
See Chapter 5 for repair procedure.
1: XXXX XXXX XXXX XX00 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
➀ ➁ ➂ ➃➄
4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000
7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000
b0
b7 b6 b4 b3 b2 b0
Default Alarm:
MN1-JHSW Write FailureDefault Grade:
2Grade Modified: Lamp Modified:
b0: 0/1 = No. 0 system / No. 1 system
b0: HSW No. (0-1)
b2-b3: Kind of TSW
10 = Second Switching
b4: HSW No. (0-1)
b6: Speech Path in ACT state 
0/1 = No. 0 system/No. 1 system
b7: Base clock in ACT state
Data analyzed by NEC Engineers.
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    							NDA-24307 CHAPTER 3
Page 77
Issue 1
SYSTEM MESSAGES
This message displays when the system detects a clock failure such as HSW internal clock down or Frame
Head down in both systems.
➀ HSW detected as faulty
➁ Details on failure
➂ Clock status of No. 0 HSW
1: XXXX XXXX XXXX 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
➀ ➁ ➂ ➃
➄ 
➅
4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000
7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000
b0
b4 b0
b3 b1 b0
Default Alarm:
MN1-KBoth HSW CLK FailureDefault Grade:
3Grade Modified: Lamp Modified:
b0: 0/1 = No. 0 system / No. 1 system
b0: 0/1 = -/Clock failure in HSW
b4: HSW No. (0-1)
b0: 0/1 = -/HSW card internal clock down
b1: 0/1 = -/External 32 ch Clock (PLO) down
b3: 0/1 = -/Frame Head Return down
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    							CHAPTER 3 NDA-24307
Pag e 7 8
Issue 1
SYSTEM MESSAGES
➃ Clock status of No. 1 HSW
Note:Refer to the meaning of ➂.
➄ Clock status of No. 2 HSW
Note:Refer to the meaning of ➂.
➅ Clock status of No. 3 HSW
Note:Refer to the meaning of ➂.
See Chapter 5 for repair procedure.
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    							NDA-24307 CHAPTER 3
Page 79
Issue 1
SYSTEM MESSAGES
This message displays when the system detects a clock failure such as HSW internal clock down or Frame
Head down in both systems.
➀ HSW detected as faulty
➁ Details on failure
➂ Clock status of No. 0 HSW
1: XXXX XXXX XXXX 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
➀ ➁ ➂ ➃
➄ ➅
4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000
7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000
b0
b4 b0
b3 b1 b0
Default Alarm:
MN1-LHSW CLK FailureDefault Grade:
3Grade Modified: Lamp Modified:
b0: 0/1 = No. 0 system / No. 1 system
b0: 0/1 = -/Clock failure in HSW
b4: HSW No. (0-1)
b0: 0/1 = -/HSW card internal clock down
b1: 0/1 = -/External 32 ch Clock (PLO) down
b3: 0/1 = -/Frame Head Return down
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    							CHAPTER 3 NDA-24307
Pag e 8 0
Issue 1
SYSTEM MESSAGES
➃ Clock status of No. 1 HSW
Note:Refer to the meaning of ➂.
➄ Clock status of No. 2 HSW
Note:Refer to the meaning of ➂.
➅ Clock status of No. 3 HSW
Note:Refer to the meaning of ➂.
See Chapter 5 for repair procedure.
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    							NDA-24307 CHAPTER 3
Page 81
Issue 1
SYSTEM MESSAGES
This message displays when the system detects a fault, such as input clock all down or output clock down in
the PLO/CLK cards (both systems).
➀ Detected PLO number
Note 1:For CLK in TSWM1 (used in LN only).
Note 2:For PLO in TSWM0 (used in LN only).
➁ Valid Information bit for Scan 
Data 1
➂ Valid Information bit for Scan 
Data 2
See Chapter 4 for the Circuit Card Replacement Procedure.
1: XXXX XXXX XX00 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
➀ ➁ ➂ ➃ ➄
4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000
7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000
b7 b6 b0
b7 b6 b5 b4 b3 b2 b1 b0
b7 b6 b5 b4 b3 b2 b1 b0
Default Alarm:
MJ1-OBoth PLO FailureDefault Grade:
3Grade Modified: Lamp Modified:
b0: 0/1 = No. 0 PLO/No. 1 PLO
b6: 0/1 = -/CLK card failure Note 1
b7: 0/1 = -/PLO card failure Note 2
b0-b7: The bit position corresponding to the detected information in Scan 
Data 1 ( ) is flagged “1”.
➃
b0-b7: The bit position corresponding to the detected information in Scan 
Data 2 ( ) is flagged “1”.
➄
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    							CHAPTER 3 NDA-24307
Pag e 8 2
Issue 1
SYSTEM MESSAGES
➃ Scan Data 1: Current Status of the 
PLO card
➄ Scan Data 2: Current status of the 
PLO card
Note 1:The clock status includes that of PH-CK18 (CLK) card.
Note 2:This information includes the failure detected in PH-CK18 (CLK) card. b7 b6 b5 b4 b3 b2 b1 b0
b4 b1 b0
b0: Clock status at the time of detection Note 1
0/1 = STBY/ACT
b1: Circuit Card status at the time of detection
0/1 = PLO synchronizing/PLO self running or drifting
b2: 0/1 = -/Input clock down
b3, b4: Route of Input clock 
b5: 0/1 = -/PLO input all down
b6: 0/1 = -/PLO output down Note 2
b7: 0/1 = -/Drifting
b3b4DCS Input RouteRoute of Input Clock
00 0 0
01 1 1
10 - 2
11 - 3
b0: 0/1 = -/5msec Burst Clock down
b1: 0/1 = -/Frame Synchronization from SYNC card is down
b4: 0/1 = -/Internal OSC clock down
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