COBHAM Satcom EXPLORER 540 User & Integrator's Manual page 197

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" followed by two numbers classifying the
equipment with regards to foreign bodies and moisture respectively.
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.
LTE-M LTE-Machine type communication. A type of low power wide area network (LPWAN)
radio technology standard developed by 3GPP to enable a wide range of cellular
devices and services (specifically, for machine-to-machine and Internet of Things
applications). The advantage of LTE-M over NB-IoT is its comparatively higher data
rate, mobility, and voice over the network, but it requires more bandwidth and is
more costly.
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.
MCC Mobile Country Code. An MCC consists of 3 decimal digits and is used in combination
with an MNC (a combination known as an "MCC/MNC tuple") to uniquely identify a
mobile network operator (carrier) using the GSM (including GSM-R), UMTS, LTE, and
5G public land mobile networks.
MNC Mobile Network Code
N
NAT Network Address Translation. An Internet standard that enables a local-area
network to use one set of IP addresses for internal traffic and a second set of
addresses for external traffic. A NAT module makes all necessary address
translations.
NB-IoT NarrowBand Internet of Things. A Low Power Wide Area Network (LPWAN) radio
technology standard developed by 3GPP. NB-IoT focuses specifically on indoor
coverage, low cost, long battery life, and high connection density.
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Glossary
Glossary-3