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BF-480M User’s Guide
- 43 -
Appendix D: Glossary
10BaseT
- An Ethernet standard that uses twisted wire pairs.
100BaseTX
- IEEE physical layer specification for 100 Mbps over two pairs of Category 5 UTP or STP wire.
Adapter -
Printed circuit board that plugs into a PC to add to capabilities or connectivity to a PC. In a networked
environment, a network interface card (NIC) is the typical adapter that allows the PC or server to connect to the
intranet and/or Internet.
Auto-MDI/MDIX
- On a network hub or switch, an auto-MDI/MDIX port automatically senses if it needs to act as
a MDI or MDIX port. The auto-MDI/MDIX capability eliminates the need for crossover cables.
Auto-negotiate
- To automatically determine the correct settings. The term is often used with communications
and networking. For example, Ethernet 10/100 cards, hubs, and switches can determine the highest speed of
the node they are connected to and adjust their transmission rate accordingly.
Browser
- A browser is an application program that provides a way to look at and interact with all the information
on the World Wide Web or PC. The word “browser” seems to have originated prior to the Web as a generic term
for user interfaces that let you browse text files online.
Cable Modem
- A device that connects a computer to the cable television network, which in turn connects to the
Internet. Once connected, cable modem users have a continuous connection to the Internet. Cable modems
feature asymmetric transfer rates: around 36 Mbps downstream (from the Internet to the computer), and from
200 Kbps to 2 Mbps upstream (from the computer to
the Internet).
CAT 5
- ANSI/EIA (American National Standards Institute/Electronic Industries Association) Standard 568 is one
of several standards that specify “categories” (the singular is commonly referred to as “CAT”) of twisted pair
cabling systems (wires, junctions, and connectors) in terms of the data rates that they can sustain. CAT 5 cable
has a maximum throughput of 100 Mbps and is usually utilized for 100BaseTX networks.
CTS
(
C
lear
T
o
S
end) - An RS-232 signal sent from the receiving station to the transmitting station that indicates
it is ready to accept data.
Data Packet
- One frame in a packet-switched message. Most data communications is based on dividing the
transmitted message into packets. For example, an Ethernet packet can be from 64 to 1518 bytes in length.
Default Gateway
- The routing device used to forward all traffic that is not addressed to a station within the local
subnet.
Download
- To receive a file transmitted over a network. In a communications session, download means receive,
and upload means transmit.
Dynamic IP Address
- An IP address that is automatically assigned to a client station in a TCP/IP network,
typically by a DHCP server. Network devices that serve multiple users, such as servers and printers, are usually
assigned static IP addresses.
Ethernet
- IEEE standard network protocol that specifies how data is placed on and retrieved from a common
transmission medium. Has a transfer rate of 10 Mbps. Forms the underlying transport vehicle used by several
upper-level protocols, including TCP/IP and XNS.
