Motorola SSETM 5000 - Manual (Page 211)

6881094C12-A November 11, 2004
Glossary-3
DTMF See dual tone multi-frequency.
dual tone multi-
frequency The system used by touch-tone telephones. DTMF assigns a specific
frequency, or tone, to each key so that it can easily be identified by a
microprocessor.
EEPROM See Electrically Erasable Programmable Read-Only Memory.
effective radiated
power The power supplied to an antenna multiplied by the antenna gain in a
given direction. ERP is usually calculated by multiplying the measured
transmitter output power by the specified antenna system gain, relative
to a half-wave dipole, in the direction of interest.
EIA Electronic Industries Association
Electrically Erasable
Programmable
Read-Only Memory A special type of PROM that can be erased by exposing it to an
electrical charge. An EEPROM retains its contents even when the
power is turned off.
electronic
potentiometer A digital potentiometer that is electrically programmable.
EPOT See electronic potentiometer.
ERP See effective radiated power.
FCC Federal Communications Commission.
firmware Code executed by an embedded processor such as the Host or DSP in
a subscriber radio. This type of code is typically resident in non-volatile
memory and as such is more difficult to change than code executed
from RAM.
FGU See frequency generation unit.
flash A non-volatile memory device similar to an EEPROM. Flash memory
can be erased and reprogrammed in blocks instead of one byte at a
time.
FLASHcode A 13-digit code which uniquely identifies the System Software Package
and Software Revenue Options that are enabled in a particular
subscriber radio. FLASHcodes are only applicable for radios which are
upgradeable through the FLASHport process.
FLASHport A Motorola term that describes the ability of a radio to change memory.
Every FLASHport radio contains a FLASHport memory chip that can be
software written and rewritten to, again and again.
FMR See Florida Manual Revision.
Florida Manual
Revision A publication that provides supplemental information for its parent
publication before it is revised and reissued.
Term Definition