COBHAM Sailor 900 VSAT, Technical Manual

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Glossary
98-133966-G1 Glossary-3
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Glossar
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N
NID Network IDentification
NMEA National Marine Electronics Association (standard). A combined electrical and data
specification for communication between marine electronic devices such as echo
sounder, sonars, anemometer (wind speed and direction), gyrocompass, autopilot, GPS
receivers and many other types of instruments. It has been defined by, and is controlled
by, the U.S.-based National Marine Electronics Association.
O
OMT Ortho Mode Transducer
openAMIP Open Antenna-Modem Interface Protocol, facilitates the exchange of information
between an ACU and a satellite router. It allows the router to command the antenna and
enables automatic beam switching (ABS).
ORE Optical Reference Encoder
P
PAST Person Activated Self Test
PCM Pedestal Control Module
PMM Polarisation Motor Module
POST Power On Self Test. A system test that is activated each time the system is powered on.
PSM Power Supply Module
R
RF Radio Frequency. Electromagnetic wave frequencies between about 3 kilohertz and about
300 gigahertz including the frequencies used for communications signals (radio,
television, cell-phone and satellite transmissions) or radar signals.
RFI Radio Frequency Interference. A non-desired radio signal which creates noise or dropouts
in the wireless system or noise in a sound system.
ROSS Roaming Oceanic Satellite Server
RSSI Received Signal Strength Indicator
S
SMA SubMiniature version A connector, coaxial RF connector.
SNMP Simple Network Management Protocol. An Internet-standard protocol for managing
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