98-144390-A Glossary-1
Glossary
Glossary 1
A
ABS ADU Bus Slave
ADM ACU Digital Module. A main processor board in the ACU.
AMB Antenna Module Bus
B
BUC Block Up Converter. The BUC can be thought of the “transmitter”, and its actions are
effectively the direct opposite to the LNB. The BUC consists of the Up Converter and HPA.
C
CM Continuous Monitoring
D
DVB Digital Video Broadcasting, a set of standards relating to digital television.
F
FPGA Field Programmable Gate Array
G
GNSS Global Navigation Satellite System, e.g. GPS.
GPS Global Positioning System. A system of satellites, computers, and receivers that is able to
determine the latitude and longitude of a receiver on Earth by calculating the time
difference for signals from different satellites to reach the receiver.
GX Global Xpress, high-speed broadband network, a worldwide Ka-band mobile satellite
system.
I
IFL Inter-Facility Link
IMSO International Mobile Satellite Organisation. An intergovernmental organisation that
oversees certain public satellite safety and security communication services provided via
the Inmarsat satellites.
IP Ingress Protection. . An international classification system for the sealing effectiveness of
enclosures of electrical equipment against the intrusion into the equipment of foreign
bodies (i.e. tools, dust, fingers) and moisture. This classification system uses the letters "IP"
followed by two or three digits. An "x" is used for one of the digits if there is only one class
of protection; e.g. IPX4 which addresses moisture resistance only.
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