GTE Omni Si Database Technical Practices Manual

TL-130200-1001B
PREMOVE AND REPLACE
FB-207181 CARD.
IIF PROBLEM STILL EXISTS,
REINSERT THE ORIGINAL CARD
AND REPLACE MPB85 
FB-17215-A CARD IN x/4 (NOTE).
PROBLEM STILL
YESNOTE: See paragraph 1.4.5.
Figure 5.10Tl-Type Trunk Loss of Supervision Troubleshooting Flowchart (Sheet 5 of 7)5210
8l87 

TL-130200-1001B
PREINSTALL ORIGINAL MPB85
CARD. REMOVE ALL OTHER
CARDS RESIDING IN FILE WITH
_.TROUBLED Tl -TYPE TRUNK
INTERFACE EXCEPT THE CARDS
REMOVED PREVIOUSLY.
FB-17192-A 
TlB2
FE1 7277-A OR 15277-1SILFB-15278-A FDC
FB-15280-A LCM
FB-20718-l 
TlSUPERVISORY
FB-17215-A MPB85
IIS THE PROBLEM
D
YESNO
v
nH
Figure 5.10Tl-Type Trunk Loss of Supervision Troubleshooting Flowchart (Sheet 6 of 7)ISOLATE DEFECTIVE CARD BY
REINSTALLING REMOVED CARDS,
ONE AT A TIME, UNTIL FAILURE
OCCURS. REMOVE AND REPLACE...

TL-130200-1001Figure 6.10Tl-Type Trunk Loss of Supervision Troubleshooting Flowchart (Sheet 7 of 7)AT THIS POINT CHECK FOR THE
PROBLEM IN THE INTERFACE
CABLE BETWEEN THE FILES.
REPLACE CABLE ONE AT A TIME.
IF THE PROBLEM STILL EXISTS
AFTER EACH REPLACEMENT,
REINSTALL THE ORIGINAL CABLE.
IF THE PROBLEM STILL EXISTS,
CALL EXPERIENCED
MAINTENANCE PERSONNEL. THE
PROBLEM MAY BE DUE TO A
MULTIPLE CARD FAILURE.
BACKPLANE WIRE, OR FAR-END
INTERFACING EQUIPMENT.
NOTE: See paragraph 
1.4.5.
52108187M-187 

TL-130200-1001
STARTciARE ANY FAULT ARE ANY FAULT
CODES PRINTED ON CODES PRINTED ON
THE MAINTENANCE THE MAINTENANCE
YES YES
1NO
IS THE SYSTEM
SYNCHRONIZED?IS PROBLEM
COMMON TO THE
aB
YESNONO
vvREFER TO SYSTEM FAULT TABLES
nC
Figure 5.11Tl-Type Trunk Loss of Transmission Troubleshooting Flowchart
(Sheet 1 of 6)
8l875210 

TL-130200-1001
CP
. .PROBLEM STILL
l
YESREMOVE ALL OTHER CARDS
RESIDING IN FILE WITH TROUBLED
Tl -TYPE TRUNK INTERFACE
EXCEPT THE CARDS REMOVED
PREVIOUSLY.
FB-17192-A 
TlB2FB-17277-A OR 15277-1 
SILFB-15278-A FDC
FB-15280-A LCM
FB-20718-I Tl
SUPERVISORY
I
4+Dcl
PROBLEM STILL
YES
1NO
(END)
Figure 5.11Tl-Type Trunk Loss of Transmission Troubleshooting Flowchart
(Sheet 2 of 6)
5210Em7M-189 

TL-130200-1001E
YREFER TO SYSTEM FAULT CODES
PROBLEM STILL
M-190
Figure 6.11Tl-Type Trunk Loss ot Transmlsslon I rouDlesnoortng rlowcnarr(Sheet 3 of 6)
81875210 

TL-130200-1001D
7REMOVE ALL OTHER CARDS IN
FILE EXCEPT FOR THE FIVE
DIGITAL TRUNK CARDS REMOVED
PREVIOUSLY AND THE MPB85 
FB--T-1721 5-A CARD (SEE NOTE).I
1
b
YES
1NO
REINSTALL ALL CARDS REMOVED
FROM THE FILE. REMOVE AND
REPLACE THE CHM85
FB-17218-A CARD IN X/l
(NOTES 1 AND 2).
IIFISOLATE DEFFECTIVE CARD BY
INSTALLING THE REMOVED CARDS
ONE AT A TIME UNTIL FAILURE
OCCURS. REMOVE AND REPLACE
THE DEFFECTIVE CARD.
NOTE: See paragraph 1.4.5.
Figure 5.11Tl-Type Trunk Loss of Transmission Troubleshooting...

TL-130200-1001PROBLEM STILLPROBLEM STILLbb
YES YESNO NO
v
[ END )REINSTALL ORIGINAL CHM85
FB-17218-A CARD INTO THE
FILE. CHECK FOR PROBLEM IN
THE INTERFACE CABLES BETWEEN
THE CHM85 CARD AND THE
EPCMN FB-17217-A CARD.
REMOVE AND REPLACE ONE TAB
CABLE AT A TIME. IF THE
PROBLEM IS NOT SOLVED,
REINSERT THE ORIGINAL CABLE
ONE AT A TIME.
YES ‘=
Figure 5.11
Tl-Type Trunk Loss of Transmission Troubleshooting Flowchart
(Sheet 5 of 6)M-192
8l675210 

TL-130200-1001G
PIREINSTALL ORIGINAL INCKS.REMOVE AND REPLACE 
INCKSFB-20992-A OF INC FB-20771 l-1
(NOTES 1 AND 2)IFB-20992-A CARD. REMOVE
AND REPLACE EPCMN
FB-17217-A CARD IN Y/9.
(NOTES 1 AND 2). .1
NO
FAR-END INTERFACE EQUIPMENT.
‘I0
ANOTES:
1. See paragraph 1.4.5.
2.Before removing or replacing these cards,disconnect the cables from the front of the card.
Figure 5.11Tl-Type Trunk Loss of Transmission Troubleshooting Flowchart
(Sheet 6 of 6)
5210ala7M-193 

START7CODES PRINTED ONREFER TO SYSTEM FAULT
THE MAINTENANCE
CODES.TABLES.NO
IS THE PROBLEM
COMMON TO THE
YES
1NO
clA
-.-.- -.-FIgWe 5.12Tl -Type Trunk Loss of Frame Synchronization Troubleshopting Flowchart
(Sheet 1 of 10)
%I875210