NEC Neax 2400 Ipx System Operations And Maintenance Manual

NDA-24307 CHAPTER 3
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SYSTEM MESSAGES
➄ Tenant No. of calling station (Hex.)
➅ OPTN data
Note:This data displays when the Tenant No. of the calling station is larger than 15, and bit7 of ➄ displays
as “1” (otherwise, “0” displays at any time). While the four-bit data of 
➄ is self-sufficient in verifying
the Tenant No. “1-15,” this OPTN data provides a supportive role to cover the larger Tenant No.
ranging from 16 to 255. Use the following method to analyze the data:
➆ OG route number...

CHAPTER 3 NDA-24307
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SYSTEM MESSAGES
➇ OPRT data
Note:This data displays when the OG Route No. is larger than 63, and bit6 of ➆ displays as “1” (otherwise,
“0” displays at any time). While the six-bit data of 
➆ is self-sufficient in verifying the Route No. “1-
63,” this OPRT data provides a supportive role to cover the Route No., which is larger than 63. Use the
following method to analyze the data:
➈ Trunk No. of OG trunk
➉ Trunk No. of the sender
11 Number of digits dialed by the...

NDA-24307 CHAPTER 3
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SYSTEM MESSAGES
12 Number dialed by the caller (See 
table)
In Case of Tandem Connection
➀ Type of connection
➁ IC route number (Hex.) b7 b6 b5 b4 b3 b2 b1 b0
b7 b6
b7 b6 b5 b4 b3 b2 b1 b0
b4-b7b0-b3
DC0 DC1
DC2 DC3
DC4 DC5
DC6 DC7
DC8 DC9
DC10 DC11
DC12 DC13
DC14 DC15
DC16 DC17
DC18 DC19
DC20 DC21
b7 b6
1 0 = Tandem connection
b7: AC data
0/1=Internal trunk/External trunk
b6: OP data (0/1)
When OPRT data of 
➂ is valid, “1” displays.
b0-b5:  IC route number
 bit 6=0...

CHAPTER 3 NDA-24307
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SYSTEM MESSAGES
➂ OPRT data
Note:This data displays when the IC Route No. is larger than 63, and bit6 of ➁ displays as “1” (otherwise,
“1” displays at any time). While the six-bit data of 
➁ is self-sufficient in verifying the Route No. “1-
63,” this OPRT data provides a supportive role to cover the Route No., which is larger than 63. Use the
following method to analyze the data:
➃ ~ ➄ Trunk No. of IC trunk
➅ Not used
➆ OG route number (Hex.)b3 b2 b1 b0
IC Route No....

NDA-24307 CHAPTER 3
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SYSTEM MESSAGES
➇ OPRT data
Note:This data displays when the OG Route No. is larger than 63, and bit6 of ➆ displays as “1” (otherwise,
“0” is displays at any time). While the six bit data of 
➆ is self-sufficient in verifying the Route No. “1-
63,” this OPRT data provides a supportive role to cover the Route No., which is larger than 63. Use the
following method to analyze the data:
➈ Trunk No. of OG trunk
➉ Trunk No. of the sender
11 Number of digits dialed by the...

CHAPTER 3 NDA-24307
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SYSTEM MESSAGES
12 Number dialed by the caller (See 
table)
b7 b6 b5 b4 b3 b2 b1 b0
b4-b7b0-b3
DC0 DC1
DC2 DC3
DC4 DC5
DC6 DC7
DC8 DC9
DC10 DC11
DC12 DC13
DC14 DC15
DC16 DC17
DC18 DC19
DC20 DC21 

NDA-24307 CHAPTER 3
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SYSTEM MESSAGES
This message displays when the DR signal of the RS-232C, connected to the port designated by the system
data, remains OFF for 30 consecutive seconds while the system is in service (immediately after startup in the
case of system start-up).
➀ Faulty Port No.
1: XX00 0000 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
➀ 
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...

CHAPTER 3 NDA-24307
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SYSTEM MESSAGES
This message displays when [16-K] I/O Port Line Down Failure is restored to normal.
➀ Faulty Port No. 
1: XX00 0000 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
➀ 
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 b5 b4 b3 b2 b1 b0
Default Alarm:
NON16-LI/O Port Line RestoreDefault Grade:
1Grade Modified: Lamp Modified:
0/1 = -/Link Down
b0: Port 0...

NDA-24307 CHAPTER 3
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SYSTEM MESSAGES
This message displays when the timer circuit on the EMA card becomes faulty and stops functioning and 64-
Hz clock alarm is output.
➀ Message Detail Data
This system message is always indicated as 0000.
1: 0000 0000 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
➀ 
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
Default Alarm:
SUP16-MHard Clock...

CHAPTER 3 NDA-24307
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SYSTEM MESSAGES
This message displays when [16-M] Hard Clock Failure is restored to normal.
➀ Message Detail Data
This system message is always indicated as 0000.
1: 0000 0000 0000 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
➀ 
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
Default Alarm:
NON16-NHard Clock RestoreDefault Grade:
3Grade Modified: Lamp Modified: