GTE Omni Scbs Installation And Maintenance Manual

iagnostics/
eDIAGNOSTICS ARE A GROUP OF SYSTEM FUNCTIONS THAT FACILITATE
MAINTENANCE BY DETECTION AND ISOLATION OF HARDWARE AND
SOFTWARE MALFUNCTIONS.
@OMNI SBCS PROVIDES 3 TYPES OF ON-LINE SYSTEM DIAGNOSTICS:
-SELF-DIAGNOSTICS: ROUTINE SELF-TESTS DONE AT TIME OF
A RESTART WHERE SYSTEM RESPONDS TO A DETECTED ERRORWITH AN ALARM.
-CALL-PROCESSING DIAGNOSTICS: ROUTINE TESTS DONE
CONTINUOUSLY AND AUTOMATICALLY BY OPERATING SYSTEM.
-MANUAL Tl?UNK CONNECTION DIAGNOSTICS: CMCCOMMAND DEDICATED TO TESTING TRUNKS...

System Self-Diagnostics
.SYSTEM IMPLEMENTS THE FOLLOWING TESTS WHEN THE SYSTEM IS POWERED ON, BY PRESSING THE CPM RESTART
BUTTON, OR BY THE WATCH DOG TIMER OVERFLOW:- RAM READ/WRITE TEST
- RAM PROTECTION TEST
- SWITCH CONTROL TEST
- NON-VOLATILE RAM CHECK
e TABLE BELOW INDICATES THE TYPE OF ALARM AND SYSTEM RESPONSE TO ERRORS DETECTED DURING SELF-
DIAGNOSTIC TESTS:
TYPE OF
DIAGNOSTICSRAM/R/W
TYPE OF RESTART
TYPE OF ALARM
SYSTEM RESPONSE
COLDHOTRRUNTO
ALM
XXON 
-ONCALL PROCESSINGUNINTERRUPTED
RAM MEMORY...

B Processingiagnostics
@SYSTEM AUTOMATICALLY SUPERVISES CALL PROCESSING OPERATION
BY IMPLEMENTlNG THE FOLLOWING TESTS:
-REAL TIME SOURCE CLOCK
- I/O CONTROL CHECK
-SWITCH CONTROL CLOCK DOWN CHECK
- SWITCH MEMORY TEST
- SWITCH CONTROL TEST
-CPM PERIPHERAL CARD DATA TRANSMISSION CHECK
-CPM CARD GROUP DATA COMMUNICATION CHECK
-MEMORY BACKUP BATTERY CHARGE CHECK
-INVALID SYSTEM INTERRUPTING CHECK
- SOFTWARE MAZE CHECK
CARD CHECK
SCRIBE THE TYPE OF ALARM AND:ETECTED DURING CALL 
PROCESSBNG
3.80 

Call Processing Diagnostics
(Continued)
SYSTEM CALL PROCESSING DIAGNOSTICS
REAL TIME SOURCECLOCK (RTS)STOP INCREMENTING TIME
OUTPUT ILLEGAL TIMEON - ONCALL PROCESSING
UNINTERRUPTED. TIMER IS
DOWN. TIME NOT OUTPUT TO
DOWNAND HOT RESTART INITIATED TO
LAMP GOES TO ON.
FUNCTION ATTEMPTED.
E MAZE (MEMORYSOFTWARE LOGIC ERROR
INITIATES HOT RESTART.
3.81 

Call Processing Diagnostics(sntinue
HARDWARE FAULT DETECTIONTYPES OF ALAR
I’YPE OF DIAGNOSTICSSYSTEM RESPONSE
WATCH DOG TIMERINITIATE HOT RESTART
OVERFLOW
RESTART THRESHOLDSYSTEM DOWN (PFT IS
3.82 

anud Trunedon Diagnostics
GULL awvll sms
@SYSTEM PROVIDES CMC-802 AS A DIAGNOSTIC TOOL FOR DEDICATING
A SPECIFIC TRUNK LINE TO A DESIGNATED STATION FOR AUDITORY,
RINGING, AND TRANSMISSION VERIFICATION.
.REFER TO DIAGNOSTIC TRUNK CONNECTION IN
STUDENT WORKBOOK FOR TESTING PROCEDURE.
3.83 

3.84 

Lamp Status Fault Isolation
.TABLE BELOW DESCRIBES PRESCRIPTIVE ACTIONS TO BE TAKEN IF AN ERROR OR FAULT IS
DETECTED AND INDICATED ON THE SYSTEM LED STATUS LAMPS.
LAMP STATUS FAULT ISOLATION/PRESCl?IPTIVE ACTION
LAMP STATUSLIKELY PROBLEM
ACTION
POWERRUN TO
ALMOFFOFFOFFOFF
POWER DOWN OR POWER SUPPLYREFER TO CMC FAULT ISOLATION
FAULT
TABLE ON NEXT PAGE.
ON
OFF ONOFFCPM FAULT: CLOCK FAILEDREPLACE CPM CARD AND REPLACE SWC
RESTARTRETRYOVERRUNCARD.
ONOFFOFF ON
SWC FAULT: CLOCK DOWNREAD OUT FAULT LOG, THEN...

Lamp Status Fault
Isolation (Continued)TYPES OF FAULTSACTIONCOMMON CONTROL (CC)
REAL TIME SOURCE CLOCK
RAM MEMORY
BACK-UP BATTERY
SWITCH CONTROL
REPLACE SWC CARD.LINE/TRUNK CARD
TROUBLESHOOT ACCORDING TO PROCEDURE FOR SINGLE ICG CARD PROBLEMS.
TERMINAL (TRM) EKT
OR DSSTEST EKT AND/OR BLF/DSS. IF INSTRUMENT IS FAULTY, REPLACE IT IF INSTRUMENTIS OPERATIONAL.SERIAL COMMUNICATION
INTERFACECHECK 
I/O EQUIPMENT. CHECK CONFIGURATION MATCH OF RS-232-C PORT
(CMC-900) AND THE CONNECTION. IF OPERATIONAL, CHANGE CPM...

EKT and BLF/DSS Instrument Diagnostics4zB
1 DESCRIPTION
.CS-10, CS-20, CSD, AND 
BLF/DSS MUST BE TESTED OFF-LINE.
.THE FOLLOWING TESTS CAN BE PERFORMED:
-BUTTON AND KEY PAD TEST
- LED LAMP TEST
- LCD DISPLAY TEST
- VOICE CIRCUIT TEST
- AUDIBLE TONE TEST
PROCEDURE 
-EKT INSTRUMENTS
1.UNPLUG TELEPHONE CORD FROM MODULAR JACK IN BACK OF TELEPHONE.
2.PRESS 1 AND 3 KEYS SIMULTANEOUSLY.
3.PLUG TELEPHONE CORD INTO MODULAR JACK IN BACK OF TELEPHONE WHILE KEEPING THE 1 AND 3 KEYS PRESSED.
4.PRESS APPROPRIATE TEST...