Glossary
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ICMP Internet Control Message Protocol. An Internet protocol mostly used for diagnostics.
IEEE Institute of Electrical and Electronics Engineers. IEEE is a nonprofit organization and the
world’s leading professional association for the advancement of technology.
IMEI International Mobile Equipment Identity. A unique number identifying your terminal.
IMSI International Mobile Subscriber Identity. A unique number used to identify a mobile
subscriber on a wireless network.
IMSO International Maritime Satellite Organisation. An intergovernmental body established to
ensure that Inmarsat continues to meet its public service obligations, including
obligations relating to the GMDSS.
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".
IP Internet Protocol.
K
kbps kilobits per second.
L
LAN Local Area Network. A computer network covering a small physical area, like a home,
office, school or airport. The defining characteristics of LANs, in contrast to wide-area
networks (WANs), include their usually higher data-transfer rates, smaller geographic area,
and lack of a need for leased telecommunication lines.
LED Light Emitting Diode.
M
M2M Machine-to-Machine. Direct communication between unmanned devices using any
communications channel, including wired and wireless.
MAC Media Access Control address. A hardware address that uniquely identifies each node of
a network.
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