GTE Omni Scbs Installation And Maintenance Manual

							R tin 
IS ES RINGING THE 
6 
ONLY 
PROBLEM 
? 
NO 
REFER TO 
MULTIPLE CARD 
PROBLEMS 
FLOWCHART. PROCEDURE FOR DETERMINATION OF CAUSE (FLOWCHART 1) 
MULTIPLE CARDS 
1 f 
I 
REPLACE BSLC 
CARD SERVING 
THE SLT. 
1 
1 
r 
TRUNKCARDSEXCEPT 
ONE 8SLC CARD AND MAKE 
A TEST CALL WITH AN 
SLT OPERATING FROM A 
CIRCUIT ON THE STATION RINGING, 
INSERT LINE AND 
TRUNK CARDS ONE 
BY ONE UNTIL A 
REMOVE THE 8SLC CARD 
AND INSERT ANOTHER REPLACE DEFECTIVE 
8SLC CARD IN OTHER LINE/TRUNK CARD 
WITH A SPARE CARD. 
3.58  
						

							inging RobI inued) 
PROCEDURE FOR DETERMINATION OF CAUSE (FLOWCHART 2) 
CHECK THE STRAPPING 
(JUMPER) OPTION ON 
’  RGEN AND THE CUSTOMER 
SYSTEM SPECIFICATION 
(CSS) FOR THE MESSAGE 
BASE AGREE 
I 
CHANGE THE RGEN 
STRAPPING/JUMPERS 
OR MODIFY THE DATA 
BASE TO REFLECT THE 
HARDWARE OPTION USED. 
WAITING OPTION 
BASE SETTING). RESTORE ODDB 
THROUGH LOADING 
OR PROGRAMMING.  
						

							3.60  
						

							DTMF Single Line 
Telephone Problerns 
. TWO TYPES OF PROBLEMS MAY OCCUR: 
. SINGLE CIRCUIT PROBLEM AFFECTING A SINGLE DTMF SLT 
INSTRUMENT. 
@ MULTIPLE CIRCUIT PROBLEM AFFECTING ALL DTMF SLT 
INSTRUMENTS. 
0 REFER TO TROUBLESHOOTING PROCEDURE FOR SINGLE, STATIONS/ 
TRUNKS FOR PROBLEMS AFFECTING SINGLE DTMF STATIONS. 
. PROBLEMS AFFECTING ALL DTMF SLT INSTRUMENTS REQUIRE 
IDENTIFYING ONE OR MORE DEFECTIVE CIRCUITS ON THE 4DMR CARD. 
DEFECTIVE CIRCUIT(S) CAN BE ISOLATED BY USING CMC-701 TO PUT ALL 
DTMF CIRCUITS EXCEPT ONE BEING TESTED, OUT OF SERVICE. 
3.61  
						

							nd CPM Card Problems 
@ REPLACE THE SWC CARD IF PROBLEMS OCCUR RELATING TO ANY OF THE 
FOLLOWING SWC FUNCTIONS: 
- CALL PROGRESS TONE GENERATION 
- MIXING FUNCTION PERMITTING THREE-WAY CONVERSATION OR 
EXECUTIVE OVERRIDE 
- DTMF TONE SENDER FUNCTION 
- CONTROL LOSS (DIGITAL PAD) 
@ REPLACE THE CPM CARD IF THE REAL TIME SOURCE CLOCK ON THE CPM 
CARD BECOMES DEFECTIVE. A DEFECTIVE CONDITION IS INDICATED BY: 
- CPM ALARM LAMP ON 
- HH:MM DISPLAYED ON CS-20 AND CSD INSTRUMENTS INSTEAD OF 
PROGRAMMED SETTING 
- FAULT LOG LISTING FOR REAL TIME SOURCE (RTS) 
HEN REPLACING COMMON CONTROL AN RGEN CARDS, SYSTEM 
OWER MUST BE 
FF. UNSEATING THE CPM CARD DELETES THE 
ODDB. RELOAD OR REPROGRAM THE ODDB. 
3.62  
						

							Printed Circuit Board Card 
Replacement 
PROCEDURE 
1. 
2. 
3. 
4. 
5. 
6. 
7. 
8. 
9. 
10. GROUND YOURSELF PRIOR TO HANDLING CARDS. 
SYSTEM POWER MUST BE TURNED OFF WHEN INSTALLING OR REPLACING CPM, 
MEM, SWC, OR RGEN CARDS. 
ALL LINE, TRUNK AND 4DMR CARDS CAN BE REPLACED WITH POWER ON. TRUNK 
CIRCUITS SHOULD BE TAKEN OUT OF SERVICE WITH CMC-701 PRIOR TO REMOVAL. 
ALWAYS ENSURE THAT CARDS ARE INSERTED IN CORRECT SLOTS (REFER TO 
STUDENT WORKBOOK, INSTALLATION). FORCING THEM INTO INCORRECT SLOTS 
MAY RESULT IN CARD MALFUNCTIONS. 
HANDLE CARDS BY EDGES ONLY. USE CAUTION BECAUSE DAMAGE TO EDGE OF 
CARD COULD RESULT IN MALFUNCTION. 
WHEN REMOVING A CARD FROM A SLOT, GRASP PLASTIC EJECTORS AND FLIP 
TOWARD TOP AND BOTTOM OF CABINET. 
ENSURE THAT CARD COMPONENTS FACE THE LEFT SIDE OF THE CABINET WHEN 
INSERTING (EXCEPT THE RGEN CARD WHOSE COMPONENTS FACE RIGHT). 
SLIDE THE REPLACEMENT CARD COMPLETELY INTO ITS ASSIGNED SLOT AND 
FIRMLY PRESS PLASTIC EJECTOR TABS. 
ENSURE THAT CARDS ARE SEATED FIRMLY INTO BACKPLANE CONNECTOR, BUT DO 
NOT FORCE CARDSTHAT ARE NOT EASILY INSERTED. VERIFY THAT CARD BELONGS 
IN SLOT, THEN REINSERT IT. 
INITIALIZE LINE/TRUNK CARDS BY PRESSING RESTART BUTTON WITH TOGGLE IN 
CENTER POSITION ON CPM CARD. 
3.63  
						

							INSTRUCTIONS 
@ THE COMBINED LABORATORY ACTlVlTY AND REVIEW EXERCISE ON THE FOLLOWING PAGES 
WILL ALLOW YOU TO BECOME MORE FAMILIAR WITH THE OMNI SBCS FAULT RESOLUTION 
PROCEDURES ASSOCIATED WITH THE FAULT CODES IN THE FAULT LOG. 
@ YOUR INSTRUCTOR HAS CREATED SEVEN SIMULATED FAULT CONDITIONS. USE THE 
TROUBLESHOOTING FLOWCHARTS INCLUDED IN THE STUDENT WORKBOOK AS A GUIDE FOR 
IDENTIFYING, ISOLATING, AND CORRECTING EACH OF THE FAULTS. 
@ TWO HOURS ARE ALLOWED TO CQMPLETE THIS ACTIVITY. AS YOU PROCEED WITH EACH 
FAULT PROBLEM, COMPLETE THE CORRESPONDING REVIEW EXERCISE BELOW. 
e SUBMIT EXERCISE TO INSTRUCTOR FOR GRADING WHEN LAST QUESTION HAS BEEN 
COMPLETED. 
FAlJLl’ 1 
1. 
DETERMINE SYSTEM STATUS BY CHECKING CPM LED LAMPS AS INDICATORS. RECORD 
LAMP STATUS: 
RUN LAMP: 
ALARM LAMP: 
TIMER OVERFLOW LAMP: 
2. CHECK THE DEVICE STATUS DISPLAY WITH CMC-800 FOR AGREEMENT WITH THE CPM LED 
LAMPS. RECORD THE DISPLAY BELOW: 
3.64  
						

							Laboratory Activity/Review Exercise 
- Troubleshooting 
(3.3) (Continued) 
~~~ ~~~~ ~~~~ 
E 
3. CHECK THE FAULT LOG LISTED WITH CMC-801. RECORD ANY FAULT INDICATED BELOW: 
TROUBLESHOOT THE FAULT USING APPROPRIATE FAULT RESOLUTION STEPS OUTLINED IN 
THE TROUBLESHOOTING FLOWCHARTS IN THE STUDENT WORKBOOK. RECORD THE STEPS 
YOU TOOK TO RESOLVE THE SPECIFIC FAULT. (INSTRUCTOR WILL BE EVALUATING YOUR 
STEPS BASED ON YOUR LOGIC, USE OF THE FLOWCHARTS, AS WELL AS SPEED IN 
IDENTIFYING THE FAULT): 
I 
LAB MILESTONE 
WHEN THE FAULT HAS BEEN RESOLVED, NOTIFY THE INSTRUCTOR TO VERIFY YOUR ANSWERS. 
3.65  
						

							Laboratory Activity/Review Exercise 
- Troubleshooting 
(3.3) (Continued) ~~~ ~~~~ ~~~~ 
E 
FAULT 2 
1. DETERMINE SYSTEM STATUS BY CHECKING CPM LED LAMPS AS INDICATORS. RECORD 
LAMP STATUS: 
RUN LAMP: 
ALARM LAMP: 
TIMER OVERFLOW LAMP: 
2. CHECK THE DEVICE STATUS DISPLAY WITH CMC-800 FOR AGREEMENT WITH THE CPM LED 
LAMPS. RECORD THE DISPLAY BELOW: 
3. CHECK THE FAULT LOG LISTING WITH CMC-801. RECORD ANY FAULT INDICATED BELOW: 
4. TROUBLESHOOT THE FAULT USING APPROPRIATE FAULT RESOLUTION STEPS OUTLINED IN 
THE TROUBLESHOOTING FLOWCHARTS IN THE STUDENT WORKBOOK. RECORD THE STEPS 
YOU TOOK TO RESOLVE THE SPECIFIC FAULT. (INSTRUCTOR WILL BE EVALUATING YOUR 
STEPS BASED ON YOUR LOGIC, USE OF THE FLOWCHARTS, AS WELL AS SPEED IN 
IDENTIFYING THE FAULT): 
3.66  
						

							Laboratory Activity/Review Exercise 
- Troubleshooting (3.3) (Continued) 
GE’ 
OhMNj SBCS 
3.67 
I 
LAB MILESTONE 
WHEN THE FAULT HAS BEEN RESOLVED, NOTIFY THE INSTRUCTOR TO VERIFY YOUR ANSWERS. 
I 
1. 
2. 
FAULT 3 
DETERMINE SYSTEM STATUS BY CHECKING CPM LED LAMPS AS INDICATORS. RECORD 
LAMP STATUS: 
RUN LAMP: 
ALARM LAMP: 
TIMER OVERFLOW LAMP: 
CHECK THE DEVICE STATUS DISPLAY WITH CMC-800 FOR AGREEMENT WITH THE CPM LED 
LAMPS. RECORD THE DISPLAY BELOW: