NEC Neax 2000 Ivs2 Isdn System Manual

 NEAX2000 IVS2 ISDN System ManualPage 190  ND-70919 (E), Issue 1.0
CHAPTER 5  OPERATION TEST
Interoffice Transmission Line Test
INTEROFFICE TRANSMISSION LINE TEST
To confirm inter-office synchronization and speech quality using “In-Service” transmission lines,
do the following procedure:
STEP 1: Connect the transmission line to the MDF or CONN card.
STEP 2: Make busy the channels except the channel tested by CME5.
STEP 3: Confirm indication lamps on the DTI/PRT/BRT card, as per the following table.
...

CHAPTER 5  OPERATION TEST
Interoffice Transmission Line Test
NEAX2000 IVS2 ISDN System Manual    
ND-70919 (E), Issue 1.0   Page 191
Table 5-1  Alarm Indications on 24DTI
LEDLED INDICATION FAULT
NORMAL FAULT CAUSE ACTION
RU N F la s h
(120 IPM)On or Off Abnormal 
operation of DTI 
cardConfirm the programming data: 
CM05, CM07 YY=01.
Check to see if the SENS 
switch is set as per the AP 
number (04-15, 20-31) 
assigned by CM05.
Reset the MB switch 
(Down→Up→Down)
If the fault cannot be cleared, 
replace...

 NEAX2000 IVS2 ISDN System ManualPage 192  ND-70919 (E), Issue 1.0
CHAPTER 5  OPERATION TEST
Interoffice Transmission Line Test
Table 5-2  Alarm Indications on 30DTI
LEDLED INDICATION FAULT
NORMAL FAULT CAUSE ACTION
RU N F la s h
(120 IPM)On or Off Abnormal 
operation of DTI 
cardConfirm the programming data: 
CM05, CM07 YY=01.
Check to see if the SENS 
switch is set as per the AP 
number (04-15, 20-31) 
assigned by CM05.
Reset the MB switch 
(Down→Up→Down)
If the fault cannot be cleared, 
replace the...

CHAPTER 5  OPERATION TEST
Interoffice Transmission Line Test
NEAX2000 IVS2 ISDN System Manual    
ND-70919 (E), Issue 1.0   Page 193
Table 5-3  Alarm Indications on 24PRT
LEDLED INDICATION FAULT
NORMAL FAULT CAUSE ACTION
RU N F la s h
(120 IPM)On or Off Abnormal  opera-
tion of PRT cardConfirm the programming data: 
CM05, CM07 YY=01.
Check to see if the SENS 
switch is set as per the AP 
number (04-15, 20-31) 
assigned by CM05.
Reset the MB switch 
(Down→Up→Down)
If the fault cannot be cleared, 
replace...

 NEAX2000 IVS2 ISDN System ManualPage 194  ND-70919 (E), Issue 1.0
CHAPTER 5  OPERATION TEST
Interoffice Transmission Line Test
Table 5-4  Alarm Indications on BRT
LEDLED INDICATION FAULT
NORMAL FAULT CAUSE ACTION
BRT
RU N F la s h
(120 IPM)On or Off Abnormal 
operation of BRT 
cardConfirm the programming data: 
CM05, CM07 YY=02.
Check to see if the SENS 
switch is set as per the AP 
number (04-15) assigned by 
CM05.
Reset the MB switch 
(Down→Up→Down)
If the fault cannot be cleared, 
replace the card....

CHAPTER 5  OPERATION TEST
PLO Operation Test
NEAX2000 IVS2 ISDN System Manual    
ND-70919 (E), Issue 1.0   Page 195
PLO OPERATION TEST
To confirm the PLO operation do the following tests:
 Clock Signal Generation Test
 Clock Signal Synchronization Test To be tested when the PBX is a clock receiver office.
 Interoffice Synchronization Test
 Source Office Mode Test To be tested when the PBX is a clock source office.
Clock Signal Generation Test
This test checks to see if the PLO keeps generating clock...

 NEAX2000 IVS2 ISDN System ManualPage 196  ND-70919 (E), Issue 1.0
CHAPTER 5  OPERATION TEST
PLO Operation Test
Clock Signal Synchronization Test
This test checks to see if the PLO keeps synchronizing with the external clock signals, when the
external clock signals from network has input again after it has stopped once. Do the following
procedure using “In Service” transmission lines.
(1) When providing one clock supply route 
STEP 1: On the DTI0/PRT0/BRT0 card extracting clock signals, set the switches...

CHAPTER 5  OPERATION TEST
PLO Operation Test
NEAX2000 IVS2 ISDN System Manual    
ND-70919 (E), Issue 1.0   Page 197
STEP 6: After an outgoing connection via trunks has been established, confirm interoffice
synchronization and speech quality with the procedure shown in STEP 3.
NOTE:If noise periodically occurs, replace the MP card after checking the switch settings on
the MP card, and do the above test again.
(2) When providing two clock supply routes
STEP 1: On the DTI/PRT/BRT cards extracting clock...

 NEAX2000 IVS2 ISDN System ManualPage 198  ND-70919 (E), Issue 1.0
CHAPTER 5  OPERATION TEST
PLO Operation Test
STEP 6: On the DTI0/1, PRT0/1, BRT0/1 cards, set the switches as shown in STEP 1 to input
clock signals from the clock supply Route 1.
STEP 7: Repeat STEP 2 and STEP 3 of this procedure.
STEP 8: On the DTI/PRT/BRT cards, set the switches as follows to change the clock supply
route from 1 to 0:
  30DTI0 card: SW-1 to ON, SW-2 to OFF
  30DTI1 card: SW-1 to OFF, SW-2 to ON
  PRT0/24DTI0 card:...

CHAPTER 5  OPERATION TEST
PLO Operation Test
NEAX2000 IVS2 ISDN System Manual    
ND-70919 (E), Issue 1.0   Page 199
STEP 4: Do the above test again in the opposite direction.
NOTE:If noise periodically occurs, replace the MP card after checking the switch settings on
the MP card, and do the above test again.
Source Office Mode Test
When the PBX is operated as a clock source office, do the following procedure using “In Service”
transmission lines.
STEP  1: Confirm that the following switches on all the...