User Manual

Glossary
Extreme CPE Product Manual 131
Orthogonal Frequency
Division Multiplexing
(OFDM)
Orthogonal Frequency Division Multiplexing: OFDM allows
multiple users to transmit in an allocated band by dividing the
bandwidth into many narrow bandwidth carriers.
Power Over Ethernet (PoE) 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.
RTS Threshold Transmitters contending for the medium may not be aware of
each other. RTS/CTS mechanism can solve this “Hidden Node
Problem.” If the packet size is smaller than the preset RTS
Threshold size, the RTS/CTS mechanism will NOT be enabled.
Service Set Identifier
(SSID)
An identifier that is attached to packets sent over the wireless
LAN and functions as a password for joining a particular radio
cell; i.e., Basic Service Set (BSS).
Session Key Session keys are unique to each client, and are used to
authenticate a client connection, and correlate traffic passing
between a specific client and the AU-EZ.
Shared Key A shared key can be used to authenticate each client attached
to a wireless network. Shared Key authentication must be used
along with the 802.11 Wireless Equivalent Privacy algorithm.
Simple Network
Management Protocol
(SNMP)
Simple Network Management Protocol: The application
protocol in the Internet suite of protocols which offers network
management services.
Simple Network Time
Protocol (SNTP)
SNTP allows a device to set its internal clock based on periodic
updates from a Network Time Protocol (NTP) server. Updates
can be requested from a specific NTP server, or can be received
via broadcasts sent by NTP servers.
Subscriber Station A general term for a customer’s WIMAX terminal equipment
that provides connectivity with a base station.
Subscriber Unit Alignment
Unit
(SAU)
An optional device that provides additional assistance in
aligning the ODU antenna.
Trivial File Transfer
Protocol (TFTP)
Trivial File Transfer Protocol: A TCP/IP protocol commonly
used for software downloads.
UTP Unshielded twisted-pair cable.