Glossary
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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.
NSD Network Service Device. An Inmarsat device for routing network traffic between GX and
BGAN services.
O
OS Operating System.
OSHA Occupational Safety and Health Act. The primary federal law which governs occupational
health and safety in the private sector and federal government in the United States. Its
main goal is to ensure that employers provide employees with an environment free from
recognized hazards, such as exposure to toxic chemicals, excessive noise levels,
mechanical dangers, heat or cold stress, or unsanitary conditions.
P
PDP Packet Data Protocol. A network protocol used by external packet data networks that
communicate with a GPRS network.
PIN Personal Identification Number. A code number used to provide access to a system that
has restricted access.
PoE Power over Ethernet. A standard for combining power supply with transmission of data
over the Ethernet. The source unit "injects" power into the Ethernet cable and the power
is "picked up" at the connected device.
PPPoE Point-to-Point Protocol over Ethernet. A network protocol for encapsulating Point-to-
Point Protocol (PPP) frames inside Ethernet frames. By using PPPoE, users can virtually
"dial" from one machine to another over an Ethernet network, establish a point to point
connection between them and then securely transport data packets over the connection.
PRISM Private Routing & Intelligent System Management. A technology used for dual operation
with cellular and BGAN network to obtain seamless and transparent data transfer
independent of the network used (Cellular or BGAN backup connection).
R
RCM Regulatory Compliance Mark. The RCM is a symbol signifying that a supplier has taken the
necessary steps to have the product comply with the electrical safety and/or
electromagnetic compatibility (EMC) legislative requirements of Australia and New
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