Paradyne 3800PLUS manual DB-25 connector

Models: 3800PLUS

1 192
Download 192 pages 59.34 Kb
Page 181
Image 181
DB-25 connector

COMSPHERE 3800Plus Modems

DB-25 connector

A 25-pin connector that is used to connect a cable which enables communications

 

between two devices.

dBm

A decibel referenced to one milliwatt. This unit measures relative signal power.

DCE

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. A modem is a DCE.

DCP

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.

demodulation

The process of recovering data from a modulated carrier wave.

dial command modifiers

A modifier used in the dial string that instructs the modem how to process a dialed

 

telephone number.

dial line

A communications circuit that is established by a switched circuit connection in the dial

 

network.

dial network

See PSTN.

Dial Standby

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.

dial string

A series of characters that consists of numbers and modifiers used to dial a telephone

 

number.

digital signal

A signal composed of only two discrete values, representing the binary digits 0 and 1.

directory location

Nonvolatile memory that stores up to ten telephone numbers. Each directory location can

 

have up to 40 characters entered.

DOC

Canadian Department of Communication.

download

A process that transfers modem firmware from a locally attached PC to a modem or

 

allows the cloning of firmware from a local modem to a remote modem. Also, the

 

process of moving data from a host computer to an attached computer.

DTE

The equipment (Data Terminal Equipment), such as a computer or terminal, that

 

provides data in the form of digital signals.

edit area

A temporary work area used to view and change configuration options from the DCP

 

without impacting modem operation. The edit area can be loaded from one of five

 

configuration option areas, Active (Operating), Active (Saved), Customer 1, Customer 2,

 

or Factory.

EIA

Electronic Industries Association. This organization provides standards for the data

 

communications industry.

EPROM

Erasable programmable read-only memory.

Glossary-4

November 1996

3980-A2-GB30-20

Page 181
Image 181
Paradyne 3800PLUS manual DB-25 connector