Acronym |
Description |
|
E |
Irradiance (or spectral irradiance) |
|
E&M signaling |
A signaling arrangement characterized by the use of
separate paths for the signaling and the voice signals (derived from
"Ear" and "Mouth") |
|
E/MARCS |
Enhanced/Mechanized Assignment Record Conversion
System |
|
E/N/W |
Evening/Night/Weekend |
|
E/W |
Engineered and Wired |
|
E911 |
Enhanced 911 Service |
|
EA |
Equal Access (switching) |
|
EADAS |
Engineering and Administration Data Acquisition
System |
|
EADAS/DC |
Engineering and Administration Data Acquisition
System - Data Collection |
|
EADAS/NM |
Engineering and Administration Data Acquisition
System - Network Management |
|
EADP |
Enhanced Adjunct Data Processor |
|
EAEO |
Equal Access End Office |
|
EAI |
Electronic Associates, Inc. |
|
EAI |
Emergency Action Interface |
|
EAN |
Equipment Access Network |
|
EAP |
Employee
Assistance Program (HR) |
|
EAROM |
Electrically Alterable Read Only Memory |
|
EAS |
Equal Access Signaling |
|
EAS |
Extended Service Area |
|
EASOP |
Economic Alternative Selection for Outside Plant |
|
EBCD |
Extended Binary Coded Decimal |
|
EBCDIC |
Extended Binary Coded Decimal Interchange Code |
|
EBCU |
Equivalent Basic Call Unit |
|
EBF |
Emergency
Bug Fix |
|
EBMG |
Eastern
Business Marketing Group |
|
EBO |
Executive Busy Override |
|
EBS |
Electronic Business Set |
|
EBT |
Electronic Benefits Transfer |
|
EBU |
Emitter Coupled Logic Bus Unit |
|
E-BUS |
Emitter Coupled Logic Bus Unit Associated Bus
Cables |
|
EC |
Echo Canceller |
|
ECA |
Exchange Carrier Association |
|
ECC |
Error Correcting (or Correction) Code |
|
ECD |
Equipment Configuration Database |
|
ECIS |
Embedded Common Channel Interoffice Signaling |
|
ECL |
Emitter-Coupled Logic |
|
ECLIPS |
Enhanced
Clearline Proposal System |
|
ECMA |
European Computer Manufacturers Association |
|
ECN |
Engineering Change Notice |
|
ECORE |
Enhanced
Core |
|
ECP |
Enhanced Call Processing |
|
ECR |
Electronic Cash Register |
|
ECR |
Engineering
Change Request (MFG) |
|
ECS |
Error Correction Switch |
|
ECS |
Extended Core Storage |
|
ECSA |
Exchange Carriers Standards Association |
|
ECT |
Echo Cancellation Technique |
|
EDAL |
Engineering
Documentation Authorization List |
|
EDALS |
Extended
Dedicated Access Line Service |
|
EDC |
Error Detection and Correction |
|
EDI |
Electronic Data Interchange |
|
EDI |
Electronic
Data Interchange (NOCC) |
|
EDLCP |
External Data Link Communications Package |
|
EDP |
Electronic Data Processing |
|
EDSAC |
Electronic Delay Storage Automatic Calculator |
|
EDSL |
Extended Digital Subscriber Line |
|
EDSX |
Electronic Digital Cross Connect |
|
EDUCOM |
Educational Communications (name of Interuniversity
Communications Council) |
|
EDVAC |
Electronic Discrete Variable Automatic Computer |
|
EEHO |
Either End Hop Off |
|
EEOC |
Equal Employment Opportunity Commission |
|
EEPROM |
Electrically Erasable Programmable Read-Only Memory |
|
EFRAP |
Exchange Feeder Route Analysis Program |
|
EFS |
Error Free Seconds |
|
EFTS |
Electronic Funds Transfer Systems |
|
EGP |
Exterior Gateway Protocol |
|
EHF |
Extremely High Frequency |
|
EI |
External
Input |
|
EIA |
Electronic Industries Association |
|
EICC |
Emergency Information and Coordinating Center |
|
EIF |
External
Interface File |
|
EIOC |
Enhanced Input/Output Controller |
|
EIOC |
Enhanced
Input/Output Controller |
|
EIR |
Employee
Information Record (HR) |
|
EIRP |
Effective Isotropic Radiated Power |
|
EIS |
Expanded Inband Signaling |
|
EJC |
Early Job Conference |
|
EKTS |
Electronic Key Telephone Set |
|
ELA |
Extended Line Adapter |
|
ELI |
Extensible Language I |
|
ELN |
Essential Line Service |
|
ELP |
Encode Level Point |
|
ELS |
Electronic Loop Segregation |
|
ELST |
Electronic Loop Segregation Test |
|
E-Mail |
Electronic Mail |
|
EMAS |
Electronic Multiline Appearances Set |
|
EMC |
Electromagnetic Compatibility |
|
EMD |
Equilibrium Mode Distribution |
|
EMF |
Electromagnetic Force |
|
EMF |
Electromotive Force |
|
EMI |
Electromagnetic Interference |
|
EML |
Estimated Measured Loss |
|
EMMS |
External
Message Management System |
|
EMP |
Electromagnetic Pulse |
|
EMP |
Equipment Management Plan |
|
EMR |
Electromagnetic Radition |
|
EMS |
Electronic Mail System |
|
EMS |
Equilibrium Mode Simulator |
|
EMSCC |
Electro-Mechanical Switching Control Center |
|
EMV |
Electromagnetic Vulnerability |
|
ENFIA |
Exchange Network Facilities Interconnect
Arrangement |
|
ENG |
Engineering |
|
ENQ |
Enquiry (Bisynch control character) |
|
ENS |
Extended
Network Services |
|
EO |
End Office |
|
EO |
Engineering
Order (MFG) |
|
EO |
Executive Order |
|
EOB |
End of Block |
|
EOB |
Executive Office Building |
|
EOD |
End of Data |
|
EOF |
End of File |
|
EOM |
End of Message |
|
EON |
End of Number |
|
EOP |
Executive Office of the President |
|
EOT |
End of Transmission (Bisync control character) |
|
EOTS |
Equipment
Order Tracking System |
|
EPA |
Environmental Protection Agency (U.S.) |
|
EPABX |
(Digital) Electronic Private Automatic Branch
Exchange |
|
EPLANS |
Engineering, Planning, and Analysis Systems |
|
EPROM |
Erasable Programmable Read Only Memory |
|
EPS |
Encapsulated PostScript |
|
EPSCS |
Enhanced Private Switched Communications Service |
|
EPSN |
Enhanced Private Switched Network |
|
EPSS |
Experimental Packet Switching System |
|
EPU |
Extended Processing Unit |
|
EQL |
Equipment Location |
|
EQUIPDAT |
Equipment
Database |
|
ER |
Error Rate |
|
ERA |
Engineering Research Associates |
|
ERCC |
Eastern
Regional Control Center (NOCC) |
|
ERD |
Entity
Relationship Diagram (IS) |
|
ERDT |
Expensive Route Delay Time |
|
ERL |
Echo Return Loss |
|
Erlang |
Dimensionless unit of traffic intensity used to
express the average number of calls underway or the average number of
devices in use |
|
ERMA |
Equipment
Repair and Maintenance Applications |
|
ERS |
Emergency
Restoration Services |
|
ERS |
Employee
Records System (no longer used, replaced by HRIS) |
|
ERWT |
Expensive Route Warning Tone |
|
ES |
End System |
|
ES |
Enterprise
System |
|
ES |
Errored Seconds |
|
ES/IS |
End System/Intermediate System |
|
ESA |
Emergency Stand Alone |
|
ESAC |
Electronic Switching Assistance Center |
|
ESF |
Extended SuperFrame |
|
ESFMS |
Extended SuperFrame Format Monitoring System |
|
ESL |
Essential Service Lines (Emergency Service (911)
with ringdown trunk) |
|
ESN |
Electronic Switched Network (Northern Telecom Inc.
DMS-100) |
|
ESP |
Employee
Stock Program (HR) |
|
ESP |
Enhanced Service Provider |
|
ESP |
Enhanced
Services Platform |
|
ESP |
Essential Service Protection |
|
ESPP |
Employee
Stock Purchase Plan |
|
ESPRIT |
European Strategic Program for R&D in
Information Technologies |
|
ESS |
Electronic Switching Service |
|
ESS |
Electronic Switching System |
|
ESS/CO |
Electronic Switching Service/Central Office |
|
ET |
Exchange Termination |
|
ETACS |
Extended Total Access Communications System |
|
ETAS |
Emergency Technical Assistance Service |
|
ETB |
End of Block (Bisync control character) |
|
ETHIS |
Enhanced Trouble Handling Information System |
|
ETI |
Electronic Telephone Interface |
|
ETL |
Equipment Test List |
|
ETN |
Electronic Tandem Network (AT&T Technologies) |
|
ETS |
Electronic Tandem Switching |
|
ETS |
Electronic Telephone Set |
|
ETS |
Electronic Translator System |
|
ETSI |
European Telecommunications Standards Institute |
|
ETV |
Educational Television |
|
ETX |
End of Text (Bisync control character) |
|
E-type pulsing signal |
An end of pulsing signal used when panel call
indicator (PCI) traffic is completed through a crossbar tandem |
|
EUCI |
Endorsed for Unclassified Cryptographic Items |
|
EUS |
End
User Services |
|
EUT |
Equipment Under Text |
|
EVA |
Extreme Value Administration |
|
EVE |
Extreme Value Engineering |
|
EVFU |
Electronic Vertical Format Unit |
|
EVHD |
Extreme Value Estimate of High Day |
|
EVR |
Electronic Video Recording |