Harris Constellation - Page 272

Constellation™ November 2003
Glossary-2
D
DMM Digital MultiMeter.
DRAM Dynamic Random-Access Memory.
D connectors, subminiature The size of the subminiature D connector
is specified by the standard shell size and the number of connectors. For
example, a 15-pin connector is referred to as a DA-15. See the following table.
DTMF Dual-Tone MultiFrequency.
DUART Dual Universal Asynchronous Receiver-Transmitter.
E
EEPROM Electronically Erasable Programmable Read-Only Memory.
EFS Error-Free Seconds.
EFSR Error-Free Seconds Ratio.
EMI Electro-Magnetic Interference.
EPLD Erasable Programmable Logic Device.
EQM Eye Quality Monitor.
ES Errored Seconds.
ESR Errored Seconds Ratio.
ET Elapsed Time.
ETSI European Telecommunications Standards Institute.
F
FarScan
Harris’ network management system software.
FCC Federal Communications Commission (U.S.).
Standard Shell Size No. of Connectors
E9
A15
B25
C37
D50