NEC Neax 2400 Ipx Fusion Network System Manual

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POST INSTALLATION TEST
Repair Procedure When LED Indicates Abnormality
1.1 How to check LYR LED
1. Confirm the LYR LED lights green on the front edge of the FCH (PA-FCHA) circuit card. (See “LED
Indication (A)” in Figure 6-2.) When the LED lights green, the fusion link is established.
2. Make sure that any alarm LED is not ON (red/yellow). (See LED Indication (B) in Figure 6-2.)
When all alarm LEDs are OFF, the DTI (PA-24DTR) card is in normal operation.
If any abnormal state is detected, please see the NEAX2400 IPX Circuit Card Manual.
Figure 6-2   LED Indications on Fusion Link Related Circuit Cards
2. Repair Procedure When LED Indicates Abnormality
If the LED indication appears abnormal, check the following items again:
Note:When the FCH is a Root Bridge, the LOAD LED remains ON.
When the FCH is Backup Bridge, the LOAD LED flashes (60INT).
LYR
LB
LOADEST3
EST2
EST1
EST0
Payload
Line
Internal
ON
8
OPEOPE
Mode
PCM
FRM
BER
RMT
AIS
LED Indication  (A)
LED Indication (B)
DTI
FCH
 
Front Cable
LYR
LB
LOAD
EST3
EST2
EST1
EST0Remains ON 
when available 
for Ethernet
Remains ON 
when ready to broadcast 
data packets     
Link is 
established  Receive   Receive Polarity of 
  pairwire is normal  Send
PA-FCHA
DTI
PA-24DTR
Remains ON 
when Fusion Link  
is established
PCM : On when PCM loss occurs. 
FRM : On when Frame Loss occurs. 
BER : On when Bit Error occurs. 
RMT : On when Remote Alarm is received. 
AIS   : On when AIS signal is detected. 
 
If any LED is ON, refer to the Circuit 
Card Manual.
FCH
FRONT
Note 
						

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POST INSTALLATION TEST
Repair Procedure When LED Indicates Abnormality
2.1 Front Cable
Make sure that front cable 10AL (10) FLT CA is securely inserted into the connectors.
FCH (PA-FCHA) switch setting
Make sure that the following keys are set properly:
Dch TS designation (0ch - 23ch: SW11, SW12, SW13)
Data Link Signal Logic (positive/negative: SW14-1)
Fusion Data Link Speed (48/56/64 kbps: SW14-2, 3)
LAPD Signal Link (user/network: SW14-4)
24DTI (PA-24DTR) switch setting
Make sure that the keys are properly set on the card. See the NEAX2400 IPX Circuit Card Manual.
If the Fusion link is not established with this repair procedure, perform the Fusion Link Test.
2.2 How to Perform the Fusion Link Test
2.2.1 Fusion Link Test Mode Setting
To set the FCH card in Fusion Link Test Mode, set the Mode Switch to 9. Initialize the FCH card using
the MB key. When the Mode is 9, the Fusion Link Controller on the FCH card sends a test data pattern.
When the same pattern is received again, the PM activates the LYR LED, flashing the LED at 60-INT
to indicate that the test result is OK. Figure 6-3 illustrates the Fusion Link Test Mode.
Figure 6-3   Fusion Link Test Mode
Note:
Be sure to initialize the FCH (PA-FCHA) card after changing the setting of the Mode Switch.
Note:Loopback points are set by a DTI card.
9Mode LYR9: Fusion Link Test M ode 
8: Standard SettingFCH card
to DTI card
Test is OKLYR  LED flashes.
FCH
front cable
Flow of Test
PA- 
FCHA
  S e n d  T e s t  
D ata P atte rn
Receive Test  
D ata P attern
FRONT VIEW
F us io n L in k C o ntrolle r se nd s   te s t d ata  pa tte rn .
D T I In te rfa c e
D/I
Fusion Link  
 Controller
Loopback
To perform a Fusion link test, set the Mode switch to 9.
Note 
						

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POST INSTALLATION TEST
Repair Procedure When LED Indicates Abnormality
2.2.2 Loopback Point Designation
The DTI card can be set at one of the following loopback points:
1. Internal Loopback
All 24 B-channels sent from the TSW are looped back to the TSW at Interface on the card. At this
time, the adjacent node detects AIS signals. (See  
    in Figure 6-4.) 
2. Line Loopback
All 24 B-channels sent from the line are looped back to the line at Line Interface on the card. (See
 in Figure 6-4.)
3. Payload Loopback
All 24 B-channels sent from the line are looped back to the line at Speech Path Control Block on
the card. (See ➂ in Figure 6-4.)
Figure 6-4   Loopback Points of DTI Card
2.3 Test Procedure
STEP  1: Set the MODE switch to 9 (Fusion Link Test) from 8 (standard setting) on the FCH card, and initialize
the circuit card by turning the MB switch ON→OFF. Refer to Figure 6-5.
T D SW  In terfa ceT D S W  Inte rface
PADPAD
S peech P ath  
Control BlockS p e e c h  P a th   
Control B lockFram er Fram er
L in e Inte rface Line Interface
Payload 
loopback External loopback 
 (Line Loopback) In te rn a l  
Loopback
FCH card DTI pkg
1
2
3N
ECNE
A
X 
2
4
0
0 
I
M
SNE
CN
E
AX
 
2
40
0
 
I
MS
FUSIO N
 N etw o rk
Self-N ode
Other Node
front cable
Sending Test  
D a ta P a tternAnalysis M ethod
R e su lt o f (1 )         N G:                                         Self - N o d e     h a s e rro rs  
R e su lt o f (1 )         O K, (2)         NG:                     L in e  h a s e rrors 
Result of (1)     OK, (2)     OK: (3)     NG:   Other Node has errors 
						

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Repair Procedure When LED Indicates Abnormality
Figure 6-5   How to Set the Fusion Link Test Mode
STEP 2: Select an appropriate loopback point by setting the switch (SW01/SW13B). Refer to Figure 6-6.
Figure 6-6   Loopback Point Designation
STEP 3: When the LYR LED flashes at 60-INT, the loopback in the block specified in Step 2 is OK. Refer to
Figure 6-7.
Note:Be sure to initialize the FCH (PA-FCHA) card after changing the setting of the Mode Switch.
84C026AE..
8: standard setting 
 
9: Fusion Link Test Mode
FCH card
FCHDTI
MB
Front ViewFront View
M ode: 
  8    9
(1) Change the mode switch (8    9).
(i) U P
(ii) D O W N
A n ti-s ta tic K it screw driver
PA - 
FC HAPA- 
24DTR
Mode Switch
(2 ) In itia lize  th e  F C H  ca rd .
ATTENTIONContents
S ta tic  S e ns itiv e
H a nd lin g
Precautions Required
1
   
   
  
 
2 
   
  
  3
  
  
 
   
4
 
1 234 5678
OFF
1 234 5678
OFF
1 234 5678
OFF
OPE
N-OPE
SW00
SW01PCM 
FRM 
BER 
RMT 
 AIS
BL23
MB
Payload
Line (External)
Internal
SW01/SW13B
Setting a Loopback point......
To set Internal Loopback 
ATTENTIONContents
Static Sensitive
Handling
Precautions Required
DTI (PA-24DTR)
ON
Anti-static Kit
Select a loopback point by setting the switch.
DTI 
						

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FCCS Network Connection Test
Figure 6-7   Fusion Link-Test Results
STEP 4: Return Mode to 8 (standard setting) when the test is complete.
STEP 5: Initialize the FCH (PA-FCHA) card using the MB switch.
Note:Be sure to initialize the FCH (PA-FCHA) card after changing the setting of the Mode Switch.
3. FCCS Network Connection Test
This section explains how to perform the following connection tests within the Fusion network:
Station-to-Station Connection Test (via FCCS)
ATTCON Connection Test (via FCCS)
Line (LC, ELC, DLC card) Connection Test (via FCCS)
3-party Conference Trunk Function Test (via FCCS)
3.1 Station-to-Station Connection Test (via FCCS)
Perform the station-to-station connection test by following the procedures below and by referring to
Figure 6-8:
3.1.1 FCCS Call Origination Test
STEP 1: Using the MBCT command, make busy all trunks in the route except the trunk to be tested.
STEP 2: Lift the handset of STN A in Node A.
Note:When the FCH is a “Root Bridge”, the LOAD LED remains ON.
8Mode
LYR
LB
LOAD
EST3
EST2
EST1
EST0Remains ON 
when available 
for Ethernet
Remains ON 
when ready to broadcast 
data packets     
Link is 
established Receive Receive Polarity of 
pair-wire is normalSend
Flash
Front View
Make sure that the LYR LED flashes at 60-INT.
DTI
FCH MNT
Front View
FCH (PA-FCHA) card
When the result of test 
is OK, the LYR LED 
flashes.MB
Note
Check 
						

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FCCS Network Connection Test
STEP 3: Dial a telephone number (STN B) that belongs to another node.
STEP 4: The call terminates on STN B.
STEP 5: Confirm the speech condition is sufficient (no noise, not one-way speech, etc.).
STEP 6: Replace the handset of STN A.
STEP 7: Repeat the above steps for all Fusion links.
3.1.2 FCCS Call Termination Test
STEP 1: Using the MBCT command, make busy all trunks in the origination route except the trunk to be tested
at Node B. 
STEP 2: Lift the handset of STN B in Node B.
STEP 3: Dial a telephone number (STN A) that belongs to the self-node.
STEP 4: The call terminates on STN A.
STEP 5: Confirm the speech condition is sufficient (no noise, not one-way speech, etc.).
STEP 6: Replace the handset of STN B.
STEP 7: Repeat the above steps for all Fusion links
.
Figure 6-8   Station-to-Station Connection Test (origination) via FCCS
3.2 ATTCON Connection Test (via FCCS)
Perform the ATTCON connection test by following the procedures below and by referring to Figure 6-9:
Check
LCLC
RG
FCCS
STN ASTN B
Node A (Self-Node)Node B
..... .....
 
C all  O rigination
B ch: busy
B ch: busy
B ch: busy
B ch: idle
MBCT Command
0: M ake idle
1: M ake B usy (Make Busy Inform ation)
LSTN: 410000
STN: 2000LSTN: 420000
STN: 2000
Dial LSTN 
420000
RINGING 
Note:Using the MBCT command, make busy all B-channels in the route except the trunk to be tested. 
						

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FCCS Network Connection Test
3.2.1 ATTCON Call Origination Test
STEP 1: Dial the operator access code (normally “0”), from STN A in Node A.
STEP 2: Confirm that the ATT lamp flashes and ringer sounds at each ATTCON in Node B.
STEP 3: Answer the call by pressing the ATND key.
STEP 4: Confirm the speech condition is sufficient (no noise, not one-party speech, etc.).
STEP 5: Release the call by pressing the CANCEL key.
STEP 6: Replace the handset of STN A in Node A.
3.2.2 ATTCON  Call Termination Test
STEP 1: Press a LOOP key on an ATTCON in Node B.
STEP 2: Dial the telephone number of STN A.
STEP 3: Confirm the ringer sounds properly at STN A.
STEP 4: Answer the call and confirm the speech condition is sufficient (no noise, not one-way speech, etc.).
STEP 5: The operator at the ATTCON releases the call by pressing the CANCEL key.
STEP 6: Replace the handset of STN A in Node A.
Figure 6-9   ATTCON Connection Test (origination) via FCCS
3.3 Line (LC, ELC, DLC Card) Connection Test (via FCCS)
Perform the Line (LC, ELC, DLC Card) connection test by following the procedures below and by referring
to Figure 6-10:
Check
Check
LCATI
FCCS STN A
ATTCON
Node A (Self-Node) Node B
 
LSTN: 410000
STN: 2000
LSTN: Logical Station Number   STN: Physical Station Number
Operator Access  
Code 0
RINGING  
						

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FCCS Network Connection Test
3.3.1 Line Origination Test: Confirmation of Physical/Telephone STN Number
STEP 1: Connect the line circuit card to be tested to a telephone set in Node A (self-Node).
STEP 2: Lift the handset of STN A and confirm dial tone.
STEP 3: Place a call to an ATTCON or D
term in Node B.
STEP 4: Answer the call and confirm the speech condition and Physical/Telephone (station) number of the
calling station.
STEP 5: Release the call.
3.3.2 Line Termination Test: Confirmation of Telephone STN Number
STEP 1: Place a call from ATTCON/Dterm in Node B using the telephone number of STN A.
STEP 2: Answer the call.
STEP 3: Confirm the number dialed and that the telephone number of STN A are the same on the display of
the ATTCON/D
term.
STEP 4: Release the call.
3.3.3 Line Connection Test: Case of Hot Line/House Phone Involved
STEP 1: The Station to be tested goes off-hook and confirms ringback tone.
STEP 2: Check whether the call is routed to the predetermined station/ATTCON.
STEP 3: Answer the calls and confirm the speech condition.
STEP 4: Release the call.
Figure 6-10   Line Connection Test (origination) via FCCS
3.4 3-party Conference Trunk Function Test (via FCCS)
Perform the 3-party conference trunk function test by following the procedures below and by referring to
Figure 6-11:
Check
Check
Check
LC /  
ELCATI 
ELC
FCCSATTCON  STN A
Node A (Self-Node) Node B
Dtermine to be tested 
(XXXX) 
						

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FCCS Network Connection Test
STEP 1: Using the MBTK Command, make busy all 3-party Conference Trunk (CFTs) except the trunk to be
tested.
STEP 2: Establish a station-to-station connection between STNs A and B in self-node (Node A). 
STEP 3: STN A goes to Switch Hook Flash (SHF), and after hearing special dial tone, dials the telephone
number of STN C in other node (Node B).
STEP 4: STN C answers the call.
STEP 5: STN A, after a brief talk with STN C, makes a SHF, and confirms that a three-way connection has
been set up.
STEP 6: Release the call.
STEP 7: Repeat the above steps for all CFTs.
STEP 8: Using the MBTK command, cancel the make-busy status of the trunk.
Figure 6-11   3-party Conference Trunk Function Test via FCCS
Note:
When a station activates this feature, CFT in Self-Node is used. In this case, CFT in Node A is used.
3.5 FCCS Alternate Routing Test
This section explains how to perform the test for Fusion-link alternate routing. Following the procedures
below and referring to Figure 6-12, make sure that the connection and alternate routing to all FCCS lines
are normal and correctly established.
3.5.1 Primary Route Trunk Test
STEP 1: Using the MBCT command, make busy all trunks in the primary route except the trunk to be tested.
Check
LCLC
FCCS
STN A 
TELN: 410000 
STN: 2000
LC
STN B 
TELN: 410001 
STN: 2001STN C 
TELN: 420000 
STN: 2000
Node A (Self-Node) Node B
 
RG
 RBT, 
SPDT
C
F
T
TSW / MUX Card
SHF 
  + 
TELN: 420000
Check 
						

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Fusion and Non-Fusion Connection Tests
STEP 2: Lift the handset of STN A in self-node (Node A).
STEP 3: Dial the telephone number of STN B that belongs to other node (STN B).
STEP 4: Confirm the speech condition is sufficient (no noise, not one-way speech, etc.).
STEP 5: Replace the handset of STN A.
STEP 6: Make idle all the trunks that were placed in make-busy state in STEP 1.
3.5.2 Alternate Route Trunk Test
STEP 1: Using the MBCT command, make busy all trunks in the primary route.
STEP 2: Using the MBCT command, make busy all trunks in the alternate route except the trunk to be tested.
STEP 3: Lift the handset of STN A.
STEP 4: Dial the telephone number of STN B.
STEP 5: Confirm the speech condition is sufficient (no noise, not one-way speech, etc.).
STEP 6: Replace the handset of STN A.
STEP 7: Make idle all the trunks that were placed in make-busy state in STEP 1 and STEP 2.
Figure 6-12   FCCS Alternate Routing Test
4. Fusion and Non-Fusion Connection Tests
Use the following procedures and refer to Figure 6-13 to perform the connection test between the FCCS and
non-Fusion Common Channel Interoffice Signaling (CCIS) or Associated Channel Interoffice Signaling
(ACIS):
4.1 When Seizing a Trunk from a Station
STEP 1: Using the MAT command, make busy all trunks in the route except the trunk to be tested.
Check
Primary Route
F
C
CS
F
CCS
STN A 
TELN: 410000 
STN: 2000STN B 
TELN: 420000 
STN: 2000
   Node A 
(Self-Node)Node B Node C
Node DAlternate Route
Check