ATL Telecom AM30 - Manual (Page 167)

ATL Telecom User Guide
AM30
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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 also 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 also data rate, Ethernet.
ADSL Asymmetric Digital Subscriber Line
The most commonly deployed "flavor" of DSL for home users. 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 Of data, having a form is analogous to the data's original waveform. The voice
component in DSL is an analog signal. See also 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 also 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
also bit, IP address, network mask.
bit
Short for "binary digit," a bit is a number that can have two values, 0 or 1. See also
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 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 also 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.
DHCP Dynamic Host Configuration Protocol
DHCP automates address assignment and management. When a computer connects to the LAN,
DHCP assigns it an IP address from a shared pool of IP addresses; after a specified time limit,
DHCP returns the address to the pool.
DHCP relay
Dynamic Host Configuration Protocol relay
A DHCP relay is a computer that forwards DHCP data between computers that request IP
addresses and the DHCP server that assigns the addresses. Each of the ROUTER's interfaces
can be configured as a DHCP relay. See DHCP.
DHCP server
Dynamic Host Configuration Protocol server
A DHCP server is a computer that is responsible for assigning IP addresses to the computers on
a LAN. See DHCP.
digital Of data, having a form based on discrete values expressed as binary numbers (0's and
1's). The data component in DSL is a digital signal. See also analog.
DNS
Domain Name System
The DNS maps domain names into IP addresses. DNS information is distributed hierarchically
throughout the Internet among computers called DNS servers. When you start to access a web
site, a DNS server looks up the requested domain name to find its corresponding IP address. If
the DNS server cannot find the IP address, it communicates with higher-level DNS servers to
determine the IP address. See also domain name.