Electra Elite
Issue 6
System Hardware Manual
10 - 9
Radio Frequency Interference (RFI)
Is interference only on outside calls
or anytime station is off-hook?
RFI Event?
Multiline Terminal off-Hook
On CO calls only
Remove one CO line
at MDF and test using
standard SLT.
No
RFI on CO
Lines?
Check cable for the
affected terminal(s).
More than 1-pair Twisted
No
Twisted
pair?
Cable using 1-pair twisted
pair cable.
Inform
Telco.
No
No
RFI Cleared?
RFI Cleared?
Yes
Yes
End.
End.
Follow the steps below, one at a time, and test after each step.
1. Place a 0.01 microfarad ceramic capacitor (0.001 microfarad for FM Interference)
across receiver and transmitter elements in the Multiline Terminal handset.
2. Add a 0.01 microfarad ceramic capacitor from one transmit lead to one receive
lead.
Yes
B1
Ground all unused pairs
at MDF.
1-pair
Summary of Contents for ElectraElite 48
Page 2: ...SYSTEM HARDWARE MANUAL Stock Number 750376 Issue 6 Series 8000 48 ...
Page 3: ......
Page 5: ......
Page 9: ...THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 10: ...Regulatory Information ...
Page 11: ......
Page 51: ...Issue 6 Electra Elite xxxii List of Figures THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 56: ...1st Tab Chapter 1 Introduction ...
Page 57: ......
Page 78: ...2nd Tab Chapter 2 System Specifications ...
Page 79: ......
Page 102: ...3rd Tab Chapter 3 Hardware Requirements ...
Page 103: ......
Page 110: ...4th Tab Chapter 4 Installing the KSU ...
Page 111: ......
Page 135: ...Issue 6 Electra Elite 4 24 Installing the KSU THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 136: ...5th Tab Chapter 5 Installing Electronic Telephone Units ...
Page 137: ......
Page 256: ...6th Tab Chapter 6 Installing Electra Elite Multiline Terminals ...
Page 257: ......
Page 290: ...7th Tab Chapter 7 Installing Optional Equipment ...
Page 291: ......
Page 344: ...8th Tab Chapter 8 Installing Dterm Series i Equipment ...
Page 345: ......
Page 358: ...Electra Elite Issue 6 System Hardware Manual 8 13 Figure 8 15 Removing the Line Panel ...
Page 396: ...9th Tab Chapter 9 Installing Electra Professional Equipment ...
Page 397: ......
Page 404: ...10th Tab Chapter 10 System Maintenance ...
Page 405: ......
Page 428: ...11th Tab Appendices ...
Page 429: ......
Page 433: ...Issue 6 Electra Elite A 4 Glossary of Abbreviations THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 434: ...SYSTEM HARDWARE MANUAL NEC America Inc Issue 6 Series 8000 48 ...
Page 435: ......