Electra Elite
Issue 6
System Hardware Manual
9 - 11
Call Dropping
See if problem exists
on all Lines.
Check DC voltages
with a meter and AC
power with a line
disturbance analyzer.
Calls
dropped on
all lines?
Yes
Yes
No
No
All
lines at same
time?
Check outside line key
after call drops.
CO
Line Key
LED Status?
C
heck COI(8)-U10 LED.
Have Telco check line circuits.
Increase Automatic Release
Signal Detection Time. Refer
to Memory Block 3-40.
COI(8)-U10
LED Status?
Off
On
Have Telco check
Line circuit(s).
Problem
Solved?
Return Defective ETU
for repair.
Perform First Initialization.
Replace CPUB( )-U10,
and test system using
default program.
1. Perform Second Initialization.
If trouble persists go to step 2.
2. Replace COI(8)-U10 ETU. Test.
On
Off
Yes
No
C2
Summary of Contents for Electra Elite 192
Page 2: ...SYSTEM HARDWARE MANUAL Stock Number 750363 Issue 6 Series 6000 192 ...
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Page 9: ...THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 10: ...Regulatory Information ...
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Page 52: ...Issue 6 Electra Elite xxxii List of Tables THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 73: ...Electra Elite Issue 6 System Hardware Manual 1 21 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 74: ...Issue 6 Electra Elite 1 22 Introduction ...
Page 96: ...Issue 6 Electra Elite 2 22 System Specifications ...
Page 104: ...Issue 6 Electra Elite 3 8 Hardware Requirements THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 213: ...Electra Elite Issue 6 System Hardware Manual 5 67 Figure 5 39 FMS 8 U10 ETU ...
Page 336: ...Issue 6 Electra Elite 7 54 Installing Optional Equipment THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 368: ...Issue 6 Electra Elite A 4 Glossary of Abbreviations THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 369: ...SYSTEM HARDWARE MANUAL NEC America Inc Issue 6 Series 6000 192 ...