user manual

ND-20292
CHAPTER 5
APRIL, 1990
c3
No Outside Dial Tone Access
Multiline Terrr
1. Reset Multiline
Terminal &Test.
Check Multiline Check Multiline
Terminals for Terminals for
intercom dial tone. intercom dial tone.
I
2. Replace Multiline
Terminal.
No
Che
alar tone
I
OR
3. Reset ESI-E() &
Test.
4. Replace ESI-E( )
&Test.
Ye Ye
Go to Flowchart
1. Reset &Test MFR-EA.
2. Does Trouble Persist?
THEN
3. Replace MFR-EA and Test.
4. Does Trouble Persist?
THEN
5. Reset and Test SLI-E( )
6. Replace and Test SLI-E( )
Go to Flowchart Al
Leave 1 SLI( ), 1 ESI()
and 1 MFR installed
1. Check Memory Block
1 D-5 for station.
restriction.
2. Check Memory
Blocks ZC-1.25.3 for
CO assignment
I
1. Reset and test, Replace COI-E( ) and test. If trouble persists,
THEN
2. Reset and test, Replace MMC-E and test. If trouble persists,
THEN
3. Reset and test, Replace TSW-E( ) and test. If trouble persists,
THEN
4. Perform second initialization. If trouble persists,
THEN
5. Perform 1st initialization. If trouble persist,
6. Replace CPU-E( ), and test during default program.
Yes No
If lines are ground start check conduit
and frame ground tosystem
Have Telco
V
check lines
500 -12