Well DA-150N, Руководство пользователя

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User’s Guide Glossary
D
Glossary
10BASE-T
A designation for the type of wiring used by Ethernet
networks with a data rate of 10 Mbps. Also known as
Category 3 (CAT 3) wiring.
See
data rate, Ethernet
.
100BASE-T
A designation for the type of wiring used by Ethernet
networks with a data rate of 100 Mbps. Also known as
Category 5 (CAT 5) wiring. See
data rate, Ethernet
.
ADSL
Asymmetric Digital Subscriber Line
The most commonly deployed "flavor" of
DSL for home users
is asymmetrical DSL. The term asymmetrical refers to its
unequal data rates for downloading and uploading (the
download rate is higher than the upload rate). The
asymmetrical rates benefit home users because they
typically download much more data from the Internet than
they upload.
analog
An analog signal is a signal that has had its frequency
modified in some way, such as by amplifying its strength or
varying its frequency, in order to add information to the
signal. The voice component in DSL is an analog signal. See
digital
.
ATM
Asynchronous Transfer Mode
A standard for high-speed transmission of data, text, voice,
and video, widely used within the Internet. ATM data rates
range from 45 Mbps to 2.5 Gbps. See
data rate
.
authenticate
To verify a user’s identity, such as by prompting for a
password.
binary
The "base two" system of numbers, that uses only two digits,
0 and 1, to represent all numbers. In binary, the number 1 is
written as 1, 2 as 10, 3 as 11, 4 as 100, etc. Although
expressed as decimal numbers for convenience, IP
addresses in actual use are binary numbers; e.g., the IP
address 209.191.4.240 is
11010001.10111111.00000100.11110000 in binary. See
bit,
IP address, network mask
.
bit
Short for "binary digit," a bit is a number that can have two
values, 0 or 1. See
binary
.
bps
bits per second
bridging
Passing data from your network to your ISP and vice versa
using the hardware addresses of the devices at each
location. Bridging contrasts with routing, which can add more
intelligence to data transfers by using network addresses
instead. The Wireless ADSL2+ Router can perform both
routing and bridging. Typically, when both functions are
enabled, the device routes IP data and bridges all other
types of data. See
routing
.
broadband
A telecommunications technology that can send different
types of data over the same medium. DSL is a broadband
technology.
broadcast
To send data to all computers on a network.
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