NEC Neax 2400 Imx System Operations And Maintenance Manual

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SYSTEM OPERATIONS
(d) Tone Test Procedure
Figure 6-33   Tone Test Procedure/Connection Diagram
 Access code is assigned by ASPA command, CI=N, SRV=SSC,
SID=17
  For Tone No. to be designated, refer to Table 6-7.
 Tone designated by Tone No. is heard.
Lift handset
(Tone)
Dial access code for
designated connection
Dial   “x x”
Tone Number
Dial “000”
(DT)
Hang Up(DT)TRUNK DESIGNATIONTEST IN PROGRESS
ORT ORTTONE 

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Table 6-7  Tone Numbers 
TONE NO. KIND OF TONE REMARKS
00 Dial Tone (DT)
01 Special Dial Tone (SPDT)
02 Ring Back Tone (RBT)
03Continuous Ring Back Tone (CRBT)
04 Busy Tone (BT)
05 Reorder Tone (ROT)
06 Service Set Tone (SST)
07 Second Dial Tone (SDT)
08 No Tone
09 Sender Transmitting Tone (SDTT)
10 Call Waiting Ring Back Tone (CWRBT)
11 No Tone
12 No Tone
1 3 Te s t  To n e  ( T S T T )
14 Music On Hold (MSC)
15 No Tone 

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SYSTEM OPERATIONS
(e) Interrupt Ringing (IR) Test Procedure
Figure 6-34   Interrupt Ringing (IR) Test Procedure/Connection Diagram
AAA A
ORTIR SST
 Access code is assigned by ASPA command, CI=N, SRV=SSC,
SID=17
Lift handset
Dial access code for
designated connection
(SST)
(DT)
TEST IN PROGRESSDESIGNATION
Dial “999”
Hang Up
Bell Rings
Lift handset and answer
(SST)
Hang Up
HANGUPSST
ANSWER 

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(f) Trunk Test Procedure
Figure 6-35   Trunk Test Procedure
Note:If the trunk number of the next trunk is not assigned, the test ends.
  Access code is assigned by ASPA command, CI=N,
SRV=SSC, SID=17
Hang Up
+ “9xx”
RT No.“xxx”
TRK No. Lift handset
Is next
register to be
tested, too?
Make switch hook flash
Note
(DT)
Dial access code for
designated connection
(RBT)
YESNO
Dial the called party
number
The called party at the
distant office...

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Figure 6-36   Trunk Test Connection Diagram
A
ORT
TRUNK DESIGNATIONCALLED PARTY DIALINGCALLED PARTY DIALING
NUMBER SENDINGCALLED PARTY DIALING
TRKA AA A A2nd DT SYSTEM
CHARGING SERVICE
PROVIDED SENDER
SYSTEM
SND
TRK
ORT
ORT
TRK 

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SYSTEM OPERATIONS
10.2 Designated Connection Test (DESKCON/ATTCON)
(1) General
The purpose of this test is to confirm the operations related to a trunk which has been designated from the
Desk/Attendant Console (DESKCON/ATTCON).
(2) Test Procedure
(a) Trunk seizure with TKSL key
 Whether dialing RT No. + TRK No. 
OR 
 Dialing C.O. Line NO. is determined per ASYD
command, SYS1. INDEX68. b1.
C.O. Line No. is assigned by ACOC command.
Press TKSL or TRKSL key
(RBT)...

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(b) Trunk seizure by access code dialing
 Special Code is assigned by ASPA command.
 CI=N, SRV=SSC, SID-17
 C.O. Line No. is assigned by ACOC command.
Press LOOP key or Lx (L1-L6) key
(RBT)
Dial “xxxx”
C.O. Line No.
Dial called party number
Press CANCEL key
Called party at the distant
office answers and talks(DT from distant office)
Dial access code
 for designated connection 

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SYSTEM OPERATIONS
10.3 Bad Call Notification
(1) General
When a station user has trouble because of hearing noise during a call, or has other difficulty having a
normal call, the line involved is recorded as a bad call notification.
The record displays on the MAT screen as system message [6-H], which indicates the recording source
(Station Number), Called Station Number or Trunk Number, etc.
(2) Operating Procedure
 SFC of the station user who can perform this...

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11. ROUTINE DIAGNOSIS
For confirming its own servicing status, the system automatically executes self diagnosis every day, and dis-
plays the result of the diagnosis on a system message. By this function, possible causes for trouble can be dis-
covered in an early stage and possible trouble can be prevented from remaining undetected.
11.1 Related System Data
 ASYD, SYS1, INDEX86,
b0 – When routine diagnosis starts, and the result of the routine...

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 SYS1, INDEX89, 90 — Routine Diagnosis Items: The item corresponding to each bit is to execute
once a day. 
 Single System Configuration
INDEX89 b0 — Main Memory Check (MM Program Memory)
0/1 = No/Yes
b1 — DM Check (DM = Data Memory)
0/1 = No/Yes
  b4 — Trunk Ineffective Hold Check
0/1= No/Yes
b5 — Trunk Ineffective Hold Detection
0/1 = No/Yes
INDEX90 b1 — Backup of Call Forwarding, Individual Speed Data, Name Display Data, User
Assign Soft...