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Paradyne ACCULINK 336x E1 User Manual

Page 155

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ACCULINK 336x E1 NTU

Glossary-2

December 1996

3360-A2-GB20-20

BNC

Bayonet-Neill-Concelman. A bayonet-type connector for coaxial cables.

bps

Bits per second. Indicates the speed at which bits are transmitted across a data
connection.

BPV

Bipolar Violation. In a bipolar signal, a “one” (mark, pulse) which has the same
polarity as its predecessor.

byte

A small group of bits (usually 8) that is handled as a unit of data.

CAS

Channel-Associated Signaling. Time-slot 16 is reserved for signaling in a 16-frame
multiframe system. With the exception of time-slot 16, the other time slots do not
need to be directly connected as they are in Common-Channel Signaling (CCS).

CCITT

The International Consultative Committee for Telegraphy and Telephony. (It is now
renamed as the ITU.)

CCS

Common-Channel Signaling. Time-slot 16 is reserved for signaling in a 2-frame
multiframe system. The time slots must be directly connected so that the G.703
DS0 channels are connected to the corresponding network DS0 channels (e.g., D1
to N1, D2 to N2, etc.).

CD

Carrier Detect. The received line signal detector. V.24 circuit 109.

CEPT

The European Conference of Postal and Telegraph Authorities. A European
standards organization.

channel

An independent data path.

channel allocation

Assigning specific DS0 channels in the E1 NTU to specific interfaces (HDSL
Network, G.703 DTE, etc.).

CHAP

Challenge Authentication Protocol.

character

A letter, figure, number, punctuation, or other symbol.

CID branch

Customer Identification branch or the E1 NTU menu tree.

client

A device that receives a specific service, such as database management, from a
server.

CLOCK IN interface

The external clock interface on the E1 NTU.

ClrReg branch

Clear Performance Registers branch of the E1 NTU menu tree.

Cnfig branch

Configuration branch of the E1 NTU menu tree.

coaxial cable

A transmission cable consisting of a conducting outer tube which encloses and is
insulated from an inner conducting core.

coding

A technique used to accommodate the ones density requirements of E1 lines.

COMCODE

A code used when ordering parts.

COM port

The communications port on the E1 NTU.

community name

An identification used by SNMP to grant an SNMP server access rights to a MIB.

configuration

The arrangement of a system or network as defined by the characteristics of its
functional units.

configuration option

Device firmware that establishes specific operating parameters for the device.
Sometimes referred to as straps.

control unit

A unit that exerts control over another unit.

CPU fail

Central Processing Unit failure. A Self-Test Health message indicating a failure in
the device’s central processing unit.