NEC Neax 2400 Imx Installation Manual

NDA-24234 CHAPTER 5
Page 351
Revision 3.0
INSTALLATION TEST PROCEDURE
NAP-200-047
Sheet 1/2
Test of Connection and Alternate Routing 
to All Tie Lines
START
Test the trunks in the primary 
route one at a time.Make busy all trunks in the primary route except the trunk to 
be tested.
Station “A” calls Station “B” via the primary route.
After Station “B” answers, check the normality of the speech 
condition including the speech level, presence of noise, and 
one-way speech.
Release.
Make all the trunks in...

CHAPTER 5 NDA-24234
Pag e 35 2
Revision 3.0
INSTALLATION TEST PROCEDURE
Figure 047-1  Combination of Tie Line Network and Public Network
Figure 047-2  Tie Line Network
NAP-200-047
Sheet 2/2
Test of Connection and Alternate Routing 
to All Tie Lines
Basic Route
Station AStation B PBX to 
be tested
Tie Line 
Network
Public 
NetworkPBX
TRKs
TRKs
Alternate 
Route
PBX
PBX
PBX Station AStation B
TRKs
TRKs
ALTERNATE
ROUTE BASIC ROUTEPBX to be
tested 

NDA-24234 CHAPTER 5
Page 353
Revision 3.0
INSTALLATION TEST PROCEDURE
Figure 048-1  Test of Tandem Connection to Tie Line
NAP-200-048
Sheet 1/2
Test of Tandem Connection to Tie Line
START
Test of direct dial-in tandem 
connectionTest of Primary Route
Station “A” calls Station “B”.
Confirm speech between Stations “A” and “B”.
Release.
Test of Alternate Route
Make busy all the trunks in the primary route.
Station “A” calls Station “B”.
Confirm speech between Stations “A” and “B”.
Release.
Un-busy (make...

CHAPTER 5 NDA-24234
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Revision 3.0
INSTALLATION TEST PROCEDURE
NAP-200-048
Sheet 2/2
Test of Tandem Connection to Tie Line
Test of tandem connection via 
ATTCONStation “A” dials the access code for the ATTCON.
The ATTCON answers and sets up a tandem connection to 
Station “B”.
The ATTCON releases, and speech between Stations “A” 
and “B” is confirmed.
Release.
Test of tandem connection via 
stationStation “A” calls Station “C”.
Station “C”, after answering, makes a Switch Hook Flash 
(SHF) and...

NDA-24234 CHAPTER 5
Page 355
Revision 3.0
INSTALLATION TEST PROCEDURE
For the PBX, PADs can be set according to the connecting status of the Tie Line involved.
(a) For an outgoing/incoming call via a Tie Line:
Via MAT command “ARTD” and switch settings on the TLT circuit card.
(b) For a tandem Tie Line connection:
Via command “APAD” or switch settings on the TLT circuit card(s).
At both the originating and terminating offices, an 8 dB PAD is set for the EMT route via the “ARTD” command or
switch...

CHAPTER 5 NDA-24234
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Revision 3.0
INSTALLATION TEST PROCEDURE
When setting up a No. 7 CCIS Network, PAD setting differs from that in the analog network.
(c) For an outgoing call to/incoming call from a Tie Line:
Vi a  “ARTD” command.
(d) For a tandem Tie Line connection:
Vi a  “APAD” command.
At both the originating and terminating offices, 0 dB is set to the outgoing side and 8 dB is set to the terminating of
the DTI/CCT route via “ARTD” command.
At the tandem office, 0 dB is set for both...

NDA-24234 CHAPTER 6
Page 357
Revision 3.0
CHAPTER 6 FAULT RECOVERY DURING TESTS
1. GENERAL
The fault recovery procedures described in this Chapter are used when a connection cannot be established in the
normal manner or an abnormal connection is discovered as a result of the tests designated in Chapter 4, ”SYS-
TEM STARTUP”, and Section 2., “BASIC CONNECTION TEST” of CHAPTER 5.
2. OUTLINE OF PROCEDURE FOR FAULT RECOVERY
The procedures for performing fault recovery are described in the NAPs indicated to...

CHAPTER 6 NDA-24234
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FAULT RECOVERY DURING TESTS
NAP-200-050
Sheet 1/2
Abnormal Lamp Indications After System 
Startup
START
Check conducted when the OPE lamp (Green) does not turn ON on any circuit cards mounted in a PIM
Using MAT command “AU N T”, check whether UNIT data has been assigned.
Replace the TSW/MUX card in the PIM with a spare.
Check whether the flat cable connected to the “BUSXX” terminal on the PIM backplane is 
securely connected.
A PIM will occasionally malfunction...

NDA-24234 CHAPTER 6
Page 359
Revision 3.0
FAULT RECOVERY DURING TESTS
NAP-200-050
Sheet 2/2
Abnormal Lamp Indications After System 
Startup
Check conducted when the OPE lamp (Green) does not turn ON on a Trunk circuit card.
Confirm that the MB switch of the circuit card is DOWN.
Using command “AT R K”, check whether Trunk data has been assigned for the circuits on the 
card.
Replace the circuit card with a spare.
Check conducted when the OPE lamp of a Trunk circuit card turns ON, but the BL lamp (Red)...

CHAPTER 6 NDA-24234
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FAULT RECOVERY DURING TESTS
NAP-200-051
Sheet 1/1
DT (Dial Tone) Connection Fault
START
Dial tone is not heard.
On the MDF, check the cross connections between the telephone and the corresponding line 
circuit.
Check whether the LT cable is securely connected to the PIM.
Replace the LC card with a spare.
DT cannot be heard from one or more lines of the same circuit card.
Replace the LC card with a spare.
DT cannot be heard from the lines accommodated by a...