3Com OFFICECONNECT 3C886 - Manual (Page 107)

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LOSSARY
analog signals A variety of signals and wavelengths that can be transmitted over communications
lines. An example is a voice call over the phone line.
baud rate A term used to measure the speed of an analog transmission from one point to
another. Although not technically accurate, baud rate is commonly used
synonymously with bit rate.
bit rate Also referred to as transmission rate. The number of binary digits (or bits)
transmitted per second (bps). Communications channels using telephone channel
modems are established at set bit rates, commonly 28,800, 56,000, or higher.
CHAP Challenge Handshake Authentication Protocol. CHAP is one of two PPP
authentication protocols; PAP is the other. An authentication protocol requests
information to verify a valid user. CHAP is a stronger authentication method
because it uses encryption and may repeatedly request user verification at any
time after link establishment.
central office (CO) The facility at which individual telephone lines in a limited geographic area are
connected to the public telephone network.
compression Compression is a method of reducing the size of data packets without losing any
information. If you desire, the 56K modem can automatically compress data for
PPP calls to improve data transfer times using a compression method called hi/fn
LZS.
DHCP Dynamic Host Configuration Protocol. DHCP allows a server to automatically
assign an IP address to a newly-attached computer on an IP network.
default Value set at the factory.
Domain A domain is a unique name which refers to a single device on the Internet and is
used for organizational purposes.
DNS Domain Name Server. DNS translates the common alphabetic name into the
numeric IP address. For example, Oscar’s_PC is translated to 192.168.1.2.
error control Various techniques that check the reliability of characters or blocks of data.
firmware Firmware is the code which resides in your 56K LAN Modem and controls its
behavior. It differs from software in the form of programs that run on your
computer.
FTP File Transfer Protocol. The protocol invoked when uploading or downloading files
from a remote site via TCP/IP.