Paradyne 3150 Operator's Manual page 220

Glossary
bandwidth The range of frequencies that can be passed by a transmission medium, or the range of
electrical frequencies a device is capable of handling.
BES Bursty Error Seconds. A second in which more than one but less than 320 CRC6 error
events have occurred.
bipolar signal A signal in which successive ones (marks, pulses) are of alternating positive and negative
polarity, and in which a zero (space, no pulse) is of zero amplitude.
bit Binary digit. The smallest unit of information, representing a choice between a one or a zero
(sometimes called mark or space).
Bits per second. Indicates the speed at which bits are transmitted across a data connection.
bps
BPV Bipolar Violation. In a bipolar signal, a one (mark, pulse) which has the same polarity as its
predecessor.
byte A sequence of successive bits (usually eight) handled as a unit in data transmission.
CCITT Consultative Committee on International Telegraphy and Telephony. An advisory committee
established by the United Nations to recommend communications standards and policies. It
was renamed ITU in March 1993.
Carrier Detect. The received line signal detector. V.24 circuit 109.
CD
A bidirectional DS0, voice, or data path, for electrical transmission between two or more
channel
points. Also called a circuit, line, link, path, or facility.
Challenge Handshake Authentication Protocol. A security technique that allows a user
CHAP
password to be encrypted for transmission.
character A letter, figure, number, punctuation, or other symbol.
Customer Identification branch or the CSU menu tree.
CID branch
A device that receives a specific service, such as database management, from a server.
client
ClrReg branch Clear Performance Registers branch of the CSU menu tree.
Cnfig branch Configuration branch of the CSU menu tree.
A technique used to accommodate the ones density requirements of E1 lines.
coding
An identification used by an SNMP manager to grant an SNMP server access rights to a
community name
MIB.
A proprietary product family name and a registered trademark of Paradyne.
COMSPHERE
The arrangement of a system or network as defined by the characteristics of its functional
configuration
units.
Device software that sets specific operating parameters for the device. Sometimes referred
configuration option
to as straps.
Central Processing Unit failure. A Self-Test Health message indicating a failure in the
CPU fail
device's central processing unit.
Cyclic Redundancy Check. A mathematical method of confirming the integrity of received
CRC
digital data.
CRC6 CRC using six check bits.
Canadian Standards Association.
CSA
Channel Service Unit. A device that connects service user equipment such as a DSU to the
CSU
local digital telephone loop, protects the line from damage, and regenerates the signal.
GL-2
March 2001 3150-A2-GB24-10