Paradyne 3163, Руководство пользователя

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ACCULINK 3163 DSU/CSU
Glossary-2 March 1999 3163-A2-GB20-10
Bursty Error Seconds. A second in which more than one, but less than 320 CRC6 error events have
occurred.
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.
Binary digit. The smallest unit of information, representing a choice between a one or a zero (sometimes
called mark or space).
A method of allocating digital signal level 0 (DS0) channels as a group rather than individually.
Bits per second. Indicates the speed at which bits are transmitted across a data connection.
Bipolar Violation. In a bipolar signal, a one (mark, pulse) which has the same polarity as its predecessor.
A sequence of successive bits (usually eight) handled as a unit in data transmission.
Bipolar 8 Zero Substitution. Encoding scheme for transmitting clear channel signals over a T1 line.
Carrier Detect. The received line signal detector. V.24 circuit 109.
A bidirectional DS0, voice, or data path, for electrical transmission between two or more points. Also
called a circuit, line, link, path, or facility.
Assigning specific DS0 channels in the device to specific interfaces (Network, DTE Drop/Insert, etc.).
Challenge Handshake Authentication Protocol. A security technique that allows a user password to be
encrypted for transmission.
A letter, figure, number, punctuation, or other symbol.
A device that receives a specific service, such as database management, from a server.
Communications port. A computer’s serial communications port used to transmit to and receive data from
a modem. The modem connects directly to this port.
A proprietary product family name and a registered trademark of Paradyne.
The arrangement of a system or network as defined by the characteristics of its functional units.
Device software that sets specific operating parameters for the device. Sometimes referred to as straps.
Central Processing Unit failure. A Self-Test Health message indicating a failure in the device’s central
processing unit.
Cyclic Redundancy Check. A mathematical method of confirming the integrity of received digital data.
CRC using six check bits.
Canadian Standards Association.
Channel Service Unit. A device that connects service user equipment or a DSU to the local digital
telephone loop.
Clear To Send. A signal indicating that the device is ready for the DTE to transmit data. Usually occurs in
response to Request To Send (RTS).
The transmission standard that specifies 12 frames as a superframe that is used for frame synchronization
and to locate signaling bits.
The electrical interface between the device and the synchronous data terminal equipment.
An organized compilation of computerized data.
A 15-position connector used on cables or devices.
A 25-position connector used on cables or devices.
BES
bipolar signal
bit
block allocation
method
bps
BPV
byte
B8ZS
CD
channel
channel allocation
CHAP
character
client
COM port
COMSPHERE
configuration
configuration option
CPU fail
CRC
CRC6
CSA
CSU
CTS
D4
data port
database
DB15 connector
DB25 connector