Alvarion BreezeMAX Si 4000 CPE User Manual page 131

Chapter - Glossary
Network Access Point
(NAP)
Network Address
Translation (NAT)
Network Time Protocol
(NTP)
Open Mobile Alliance
(OMA)
Orthogonal Frequency
Division Multiplexing
(OFDM)
Physical Layer Device
(PHY)
Plain Old Telephone
Service (POTS)
Power Over Ethernet (PoE)
Point to Point Tunneling
Protocol (PPTP)
Quadrature Phase Shift
Keying (QPSK)
BreezeMAX Si 4000 CPE
Network exchange point equipped with large-scale switching
facilities and serving as a connection point between individual
Internet Service Providers
A system for reusing IP addresses - The process of modifying
network address information in datagram packet headers,
while in transit, across a router, in order to remap a given
address space into another.
NTP is a protocol designed to synchronize the clocks of
computers over a network. The time servers operate in a
hierarchical-master-slave configuration in order to synchronize
local clocks within the subnet and to national time standards
via wire or radio.
OMA DM (device Management) is a protocol specified by Open
Mobile Alliance (OMA) for Device Management purposes, by the
Device Management Working Group and the Data
Synchronization (DS) Working Group.
Orthogonal Frequency Division Multiplexing: OFDM allows
multiple users to transmit in an allocated band by dividing the
bandwidth into many narrow bandwidth carriers.
The term used for a transceiver in Fast Ethernet and Gigabit
Ethernet systems.
Standard analog telephone service, regular telephone line
without extra enhancements
Power over Ethernet: A specification for providing both power
and data to low-power network devices using a single Category
5 Ethernet cable. PoE provides greater flexibility in the locating
of Wi²s and network devices, and significantly decreased
installation costs.
This protocol enables the transfer of data packets of TCP / IP
through a foreign network that is not based on these protocols
(by marking the packet with an address suited to the foreign
network)
A digital modulation scheme that conveys data by changing, or
modulating, the phase of a reference signal (the carrier wave).
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