Black Box COMPACT T1 MT850A User Manual
Page 565

Compact T1 - Release 6.1
Glossary-7
Glossary
Channel Service Unit
Channel Service
Unit
The interface to the T1 line that terminates the local loop.
Classless Inter-
Domain Routing
CIDR is a new addressing scheme for the Internet which allows for more
efficient allocation of IP addresses than the old Class A, B, and C address
scheme.
collision
In Ethernet, the result of two nodes transmitting simultaneously. The
frames from each device impact and are damaged when they meet on the
physical media.
command line
The command line is where you enter MS-DOS commands.
compander
Companding is the process of compressing the amplitude range of a
signal for economical transmission and then expanding them back to
their original form at the receiving end.
Domain Naming
System
DNS. A mechanism used in the Internet for translating names of host
computers into addresses.
Dynamic Host
Configuration
Protocol
DHCP is a network configuration that allows maintenance to be
performed from a central site rather than by end users.
encapsulation
Carrying frames of one protocol as the data in another.
echo
cancellation
A technique that allows for the isolation and filtering of unwanted signals
caused by echoes from the main transmitted signal.
end point
A network element (component) at the end of the network, a transmitter
or receiver, or an originating or terminating device.
Facilities Data
Link
FDL supports the communication of various network information in the
form of in-service monitoring and diagnostics.
filter
An operating parameter used with routers that can be set to block the
transfer of packets from one LAN to another.