Alvarion BreezeMAX Si 4000 CPE, Руководство пользователя

Страница: 128 / 135

Chapter - Glossary
BreezeMAX Si 4000 CPE 112 User Manual
CINR Carrier to Interference-plus-Noise Ratio (CINR), expressed in
decibels (dBs), is a measurement of signal effectiveness. The
carrier is the desired signal, and the interference can either be
noise or co-channel interference or both. In order for the signal
receiver to be able to decode the signal, the signal must fall
into an acceptable CINR range, which differs with the
technology used (i.e., CDMA, GSM, etc.).
Clear to Send (CTS) Signal that gives a modem permission to send data.
Customer Premise
Equipment (CPE)
Customer Premise Equipment: Communications equipment
that resides on the customer's premises.
Dynamic Host
Configuration Protocol
(
DHCP)
A protocol used to assign IP addresses to computers on a
Microsoft NT local area network
Domain Name System
(DNS) A mechanism used for translating host names for network
nodes into IP addresses.
Dynamic Domain Name
System (DDNS) A method, protocol, or network service that provides the
capability for a networked device to notify a domain name
server to change the active DNS configuration of its configured
hostnames, addresses or other information stored in DNS, in
real-time.
Dynamic Host Control
Protocol (DHCP) Dynamic Host Configuration Protocol: Provides a framework for
passing configuration information to hosts on a TCP/IP
network. DHCP is based on the Bootstrap Protocol (BOOTP),
adding the capability of automatic allocation of reusable
network addresses and additional configuration options.
(“Demilitarized Zone”)
DMZ A server that acts as "neutral zone" and separates an internal
network from a public one (in order to prevent outside access
to a company's private data.
Data/Digital Signal
Processor (DSP) A system that controls voice quality
Differentiated Services
Code Point (DSCP) A field in the header of IP packets for packet classification
purposes.
Dual Tone Multi
Frequency (DTMF) Allocation of a unique tone to each button on an appliance
(made up of two frequencies - high and low) that allows a
computer to recognize the tone.
Extended Real-time
POLLING SERVICE (ertPS) One of the five QoS service types defined in the IEEE 802.16
WiMAX.