Paradyne Comsphere 3920Plus Installation And Operation Manual page 270

COMSPHERE 392xPlus Modems
data carrier
data compression
data mode
DB-25 connector
dBm
DCE
DCP
demodulation
DevHS
Diagnostic Channel (DC)
dial command modifiers
dial line
dial network
Dial Standby
dial string
digital signal
digital bridging
directory location
Glossary-4
A continuous frequency signal that can be modulated by another signal that contains
information to be transmitted.
The elimination of empty fields, redundancies, and gaps in order to reduce storage
capacity needs and the amount of data to be transmitted. Anything that is eliminated is
restored after the data is received.
One of two modem operating modes. When in Data mode, the modem transmits and
receives data instead of accepting commands.
A 25-pin connector that is used to connect a cable which enables communication
between two devices.
A decibel referenced to one milliwatt. This unit measures relative signal power.
The equipment (Data Communications Equipment or Data Circuit Terminating
Equipment) that provides the functions required to establish, maintain, and end a
connection. This equipment also provides the signal conversion required for
communication between the DTE and the telephone line.
Diagnostic Control Panel. The face of the modem that continuously provides status
information about the modem's operation and allows an operator to manage its operation.
This is a generic term used for both the standalone and carrier-mounted models. See
SDCP.
The process of recovering data from a modulated carrier wave.
Device Health and Status. A detailed account of device alarms.
The diagnostic interface between two network devices, used to extend the NMS
diagnostics to downstream devices.
A modifier used in the dial string that instructs the modem how to process a dialed
telephone number.
A communications circuit that is established by a switched circuit connection in the dial
network.
See PSTN.
A function available when the modem is operating in Dial Backup mode, allowing the
modem to switch back to lease-line operation while still maintaining the dial-line
connection.
A series of characters that consists of numbers and modifiers used to dial a telephone
number.
A discrete signal. Compare with analog signal.
Provides the capability of dial backup in a multipoint configuration by bridging the
signal on the digital side of the front end panel.
Nonvolatile memory that stores up to ten telephone numbers. Each directory location can
have up to 40 characters entered.
April 1995 3920-A2-GN31-10