NEC Neax 2400 Ipx System Operations And Maintenance Manual

NDA-24307 CHAPTER 7
Page 583
Issue 1
ROUTINE MAINTENANCE PROCEDURE
4. ROUTINE MAINTENANCE CHECK LISTS
This section provides check lists (Maintenance Procedure Reports) to be used when performing routine
maintenance. The Routine Maintenance Check Lists consists of the following items:
Maintenance Procedure Report
C.O. Trunk/Tie Line
Register/Sender Trunk (RST)
Digital Conference Function (8 CFT)
Speech Path for each PIM, and Ringing Generator Unit
Attendant/Desk Console 

CHAPTER 7 NDA-24307
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ROUTINE MAINTENANCE PROCEDURE
USER NAMESIGNATURE OF 
SUPERVISORWORK TIME
(FROM -  )
Name of User (Company) Date: Maintenance
ClassificationRoutine/
Non-routine
Control No. Maintenance
Company
Name of Equipment Room Temperature - °C 
°F & humidity %Name of Worker
Reference 
SectionItem Detail Check Reference 
SectionItem Detail Check
3.1Check of Ambient 
Conditions in the 
Switch RoomAmbient 
Temperature3.9Trunk RGU Check SND Trunk
Relative humidity DCF Function...

NDA-24307 CHAPTER 7
Page 585
Issue 1
ROUTINE MAINTENANCE PROCEDURE
C.O. Trunk Tie Line
TEST TYPE TEST ITEM CONNECTION DIAGRAM
C.O. Trunk/Tie Line 
Speech Path TestSet up a speech path test by
seizing a trunk using the 
Station or ATTCON/DESKCON 
connection test diagrammed to
the right.Connection Test-Station 
Connection Test-ATTCON/DESKCON
C.O. Trunk/Tie Line
NAME OF TRUNK ROUTEACCESS 
NUMBERROUTE 
NUMBERTRUNK 
NUMBERCHECK REMARKS
LCTRK
C.O./Tie
Line
ATITRK
C.O./Tie
Line
ATTCON/
DESKCON 

CHAPTER 7 NDA-24307
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ROUTINE MAINTENANCE PROCEDURE
Register/Sender Trunk (RST)
TEST TYPE TEST ITEM CONNECTION DIAGRAM
ORT Function  Perform the test by specifying 
an ORT using the Connection 
Test-Station.
 Confirm that [6-I] system 
message displays as a result of 
the test.DP/PB
SENDER Function  Perform the test by specifying 
an ORT using the Connection 
Test-Station. 
 Confirm that [6-I] system 
message displays as a result of 
the test.
LC
ORT
LC~
SND
ORT 

NDA-24307 CHAPTER 7
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Issue 1
ROUTINE MAINTENANCE PROCEDURE
RST (/)
FUNCTION
TRUNK NO.ORT
SENDERREMARKSPB RECEIVING DP RECEIVING
RST No.ORT0 SND0
11
22
33
44
55
66
77
RST No.00
11
22
33
44
55
66
77
RST No.00
11
22
33
44
55
66
77
RST No.00
11
22
33
44
55
66
77 

CHAPTER 7 NDA-24307
Page 588
Issue 1
ROUTINE MAINTENANCE PROCEDURE
Digital Conference Function
TEST TYPE TEST ITEM CONNECTION DIAGRAM
Three-way 
Conversation Perform the test by specifying 
an 8CFT using the Connection 
Test-Station. 
 Confirm that [6-I] system 
message displays as a result of 
the test.
FUNCTION
TRUNK NO.SPEECH RELEASE REMARKS
CFT0
1
2
3
4
5
6
7
LC
~
TSTT
MUX
8CFT
~ 

NDA-24307 CHAPTER 7
Page 589
Issue 1
ROUTINE MAINTENANCE PROCEDURE
Speech Path for Each PIM, and Ringing Generator Unit
NO. TEST TYPE TEST ITEM CONNECTION DIAGRAM
1 The ATTCON/
DESKCON is called 
from one station in 
each PIM.Normal speech path is confirmed 
by calling the attendant from a 
station located in each PIM.
2 The operator calls 
the station back.After normal speech path has 
been confirmed, the attendant 
calls the station back. Confirm 
that the station rings.
ATI
ATTCON/
LC
DESKCON
ATI...

CHAPTER 7 NDA-24307
Page 590
Issue 1
ROUTINE MAINTENANCE PROCEDURE
MOUNTING LOCATION
CHECK REMARKS
MODULE NAME UNIT NAME
PIM00
1
2
3
PIM10
1
2
3
PIM20
1
2
3
PIM30
1
2
3 

NDA-24307 CHAPTER 7
Page 591
Issue 1
ROUTINE MAINTENANCE PROCEDURE
Attendant/Desk Console (ATTCON/DESKCON)
TEST TYPE TEST ITEM CONNECTION DIAGRAM
Call Termination Test A station dials the operator 
access code and confirm that 
the call termination is 
indicated at all the ATTCON/
DESKCON.
 A station dials the operator 
access code. An attendant 
answers and speaks with the 
caller. This process is repeated 
at all the ATTCON/
DESKCON.
Call Origination Test  The attendant originates a call 
to the...

CHAPTER 7 NDA-24307
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ROUTINE MAINTENANCE PROCEDURE
FUNCTION
ATTCON/
DESKCON NO.CALL TERMINATION CALL ORIGINATION REMARKS
INCOMING CALL 
INDICATIONSPEECH RELEASE SPEECH RELEASE
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15