NEC Neax 2400 Imx System Operations And Maintenance Manual

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2.2 Display on MAT
Set Scanning to Scanning ON (default) on the Scanning PBX form to collect system messages. If any mes-
sage is collected, the information is displayed in the text box on the DFTD command form.
3. INDICATION OF LOCKOUT STATIONS
When a station is in lockout status (permanent signaling state, shorting across speech wires, etc.), it can quickly
be discovered, preventing the situation from developing into serious trouble.
3.1 Indicating Method
By entering the following commands from the MAT, information pertaining to the lockout station con-
cerned will display.
3.2 Recovery Procedure
Figure 6-5   Recovery Procedure From Lockout Station COMMAND COMMAND FULL NAME
DLSLDisplay of Lockout Station - LENS
DLSSDisplay of Lockout Station - Number
Confirm the state of the handset of
the displayed station.
On the MDF, connect the test
telephone to the displayed station
and confirm Dial Tone (DT).
Here DT?
AThe in-house wiring (from the MDF to
the lockout station) is shorting.
Check the wiring. Go on-hook and then go off-hook again.
LOCKOUT STATION
SEPARATINGMDFPBX
TEST TEL.
If dial tone is heard, the station is in permanent
signaling status.
YES
NO 
						

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Figure 6-5  Recovery Procedure From Lockout Station (Continued)
COMMAND COMMAND FULL NAME
RLSTRelease Station/Trunk
A
RLST command
(Confirm: DT)
Hear DT?
Replace 16LC card
with a spare.Circuit may be faulty temporarily.
Observe situation for a while.Forcibly release the lockout station circuit.
Go off-hook again and confirm DT.
YES
NO 
						

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4. LINE LOAD CONTROL
In the PBX, Line Load Control can be activated automatically or manually as a countermeasure against abnor-
mal traffic congestion.
In the case of automatic control, the system automatically monitors an overloaded situation and restricts out-
going calls from stations and incoming calls from trunks.
In the case of manual control, the operator at an Attendant/Desk Console or the MAT restricts outgoing calls
from stations and incoming calls from trunks.
This section covers the following methods to activate Line Load Control:

Control by dialing an access code from the ATTCON/DESKCON

Control by entering command data from the MAT

System automatic monitoring
Operating Procedure
(1) Operations on the Attendant Console
By the operations on the ATTCON, restriction is effected on an outgoing call from a station having SFC
in which the SFI = 16 (Line Load Control) of ASFC command is set as RES=0 (incoming calls to that
station are allowed). For restricting incoming calls from a trunk, system data ASYD, SYS1, INDEX59,
b0=1 should be assigned.
Setting
Figure 6-6   Line Load Control Operations on ATTCON—Setting
 
Press LOOP key.
Press CANCEL key.Lamp (Figure 6-8) on control 
panel lights.
 System message [6-C] displays. (SST)
Dial the access code for setting 
Line Load Control. 
						

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 Cancelling
Figure 6-7   Line Load Control Operations on ATTCON—Cancelling
Figure 6-8   Locations of Lamps (ATTCON)
 
Press LOOP key.
Press CANCEL key.Lamp (Figure 6-8) on control 
panel lights.
 System message [6-D] displays. (SST)
Dial the access code for cancelling 
Line Load Control.
LAMPNEC 
						

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(2) Key Operations on the Desk Console (DESKCON)
By the operations on the Desk Console, restriction is applied on an outgoing call from a station having
SFC in which the SFI = 16 (Line Load Control) of ASFC command is set as RES=0 (incoming calls to
that station are allowed). For restricting incoming calls from a trunk, system data ASYD, SYS1,
INDEX59, b0=1 should be assigned.
Setting
Figure 6-9   Line Load Control Key Operations on DESKCON—Setting
 Cancelling
Figure 6-10   Line Load Control Key Operations on DESKCON—Cancelling
 
Press Lx (L1-L6) key.
Press CANCEL key. LLC displays on desk console 
(Figure 6-11).
 System message [6-C] displays. (SST)
Dial the access code for setting 
Line Load Control.
 
Press Lx (L1-L6) key.
Press CANCEL key. LLC displays on desk console 
(Figure 6-11).
 System message [6-D] displays. (SST)
Dial the access code for cancelling 
Line Load Control. 
						

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Figure 6-11   Line Load Control Indication (DESKCON)
(3) Operations on the MAT
By entering ALLC command from the MAT, Line Load Control executes. The station to be controlled and
the contents of the Line Load Control executed on the MAT are the same as those in Step (1), Operations
on the Attendant Console.
(4) Automatic Setting
If the usage rate of the CPU exceeds the system data usage rate, Line Load Control is automatically set.
In this case, system message [6-C] displays. The station to be controlled and the contents of the Automatic
Line Load Control are the same as those in Step (1), Operations on the Attendant Console.
If the usage rate of the CPU drops below the system data usage rate, the Line Load Control is automati-
cally cancelled. In this case, system message [6-D] displays. While the Line Load Control is set, the lamps
on the control panel of the Desk/Attendant Console remain lit.
COMMAND COMMAND FULL NAME
ALLCAssignment of Line Load Control
1
4
7
*2
5
8
03
6
9
#Line Load indication  
LLC is displayed on a Desk Console, when Line Load Control starts.
LLC
Desk Console
L1 L2
L3
L4
L5
L6 
						

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5. IOC LINE MONITOR
(1) Functional Outline
This function monitors the IOC port status. As a result of the monitoring by this function, the following
is executed:
 When the connection with a port has been disconnected, it is reported by a message.
 When the connection with a port is set up, it is reported by a message.
 The port status is stored in the memory and updated continuously.
(2) Message Judgment Criteria
Table 6-2 describes the message judgement criteria.
Table 6-2  Message Judgment Criteria
MESSAGE CONTENT
Port Normal System data is assigned, and DR signal is ON.
Port Abnormal System data is assigned, and DR signal is OFF.
Output of Port Disconnected This message is output when Port Abnormal status has lasted for 30 seconds.
This message is immediately output if port abnormal occurs after the IOC card is 
initialized.
Output of Port Status Restored This message is output when DR signal is ON for the port about which Output of Port 
Disconnected message is output. 
						

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6. LINE MANAGEMENT
The following explanations apply to line management:
 Make-Busy/Make-Busy Cancel of Station and Data Terminal
 Class Change and Number Change of Station and Data Terminal
 Make-Busy/Make-Busy Cancel of C.O. Line/Tie Line
6.1 Make-Busy/Make-Busy Cancel of Station and Data Terminal
Stations and data terminals can be put into make-busy state by the following operations:
(1) On each station basis using the MBST command.
Assign the station number in the STN parameter and choose “1” for the MB box of the MBST command.
For the make-busy cancellation, choose “0” for the MB box.
(2) On each circuit basis using the MBLE command.
Assign LENS number in the LENS parameter and choose “1” for the MB box of the MBLE command.
For the make-busy cancellation, choose “0” for the MB box.
(3) On each circuit card basis using the MBPM command or operating the MB (toggle) key on the card.
 Assign the required LENS number in the MG, UNIT and Group parameters and choose “3” for the
MB box of the MBPM command.
 For the make-busy cancellation, choose “2” for the MB box.
or
 Set to UP the MB key on the circuit card (= ON).
 For make-busy cancellation, return the MB key down (= OFF). 
						

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6.2 Class Change and Number Change of Station and Data Terminal
Figure 6-12 shows the procedure for class change and number change of station and data terminal.
Figure 6-12   Class Change and Number Change of Station and Data Terminal Procedure
6.3 Make-Busy/Make-Busy Cancel of C.O. Line/Tie Line
Figure 6-13 shows the procedure to make-busy/make-busy cancel of C.O. line/tie line.
Figure 6-13   Make-Busy/Make-Busy Cancel of C.O. Line/Tie Line Procedure
Refer to Section 6.1.
  For changing class, use ASCL command
 Note 1
 For changing station number, use ASTN command
Note 2
Refer to Section 6.1.
START
Line Make-Busy
Class change and number 
change
Line Make-Busy Cancel
END
Note 1:For guest station of Hotel System, use AGCL command.
Note 2:For guest station of Hotel System, use AGSN command.
END
  For make-busy/make-busy cancel by line basis MBLE
command 
  For make-busy/make-busy cancel by route basis MBRT
command
  For make-busy/make-busy cancel by each circuit card
MBPM commands or MB (toggle) switch setting on the
circuit card
START
Make-Busy/Make-Busy Cancel of 
C.O./Tie Line 
						

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6.4 Line Management Commands
7. STATION MESSAGE DETAIL RECORDING SYSTEM (SMDR)
Billing information can be managed by connecting the PBX system and an external computer (SMDR equip-
ment).
Note:The SMDR equipment and its software must be provided by the user.
The PBX system provides the SMDR equipment with the following information:
 Calling Party Information
 Called Party Number
 Call Start Time
 Call End Time
 Call Data
 Authorization Code/Account Code
Upon receiving the above information from the PBX system, the SMDR equipment performs editing and man-
agement of the information and outputs the resulting information. This section explains the information pro-
vided to the SMDR equipment and also explains the method of controlling the interface port (IOC card)
between the SMDR equipment and the PBX system.
COMMAND COMMAND FULL NAME
AGCL Assignment of Guest Station Class
AGSN Assignment of Alternated Guest Station Number
ASCL Assignment of Station Class Data
ASTN Assignment of Station Number
MBLEMake Busy of LENS
MBPMMake Busy of Port Microprocessor
MBRTMake Busy of Route
MBSTMake Busy of Station
MBTKMake Busy of Trunk
DLENDisplay of LENS Data