Paradyne 3821PLUS manual Pbx

COMSPHERE 3821Plus Modem

Originate mode

parity

PBX

permissive interface

power-up self-test product code programmable interface

protocol

PSTN

pulse dialing

register

remote loopback

result code

RJ11

RJ45 rotary

SDCP

serial transmission

The state of a modem ready to transmit a call. In a dial network, it is the modem that makes the call. In a leased-line network, it is one of two sides of the network that is selected to be the originating modem.

A way of checking data accuracy by counting the number of bits that have a value of one.

Telephone switching equipment (Private Branch Exchange) dedicated to one customer. A PBX connects private telephones to each other and to the public dial network.

A dial modem operating mode characterized by a fixed output power level of ±9 dBm. It is one of two possible modes of operation for modems connected to dial lines (see programmable interface).

A test that checks most hardware components when the modem is powered-on.

A three-digit code indicating the modem's highest VF data rate.

A dial modem operating mode characterized by an output power level (±12 to 0 dBm) set by a programming resistor in the jack. It is one of two possible modes of operation for modems connected to dial lines (see permissive interface).

The rules for timing, format, error control, and flow control during data transmission.

Public Switched Telephone Network. A network shared among many users who can use telephones to establish connections between two points. Also known as dial network.

One of two dialing methods, in which telephone numbers are sent as pulses (brief changes in voltage or current intensity) across the telephone line. Rotary telephones use pulse dialing.

A part of the modem's memory that contains values that determine the modem's operating characteristics.

A test that sends a signal to the remote modem to test the local modem, the remote modem, and the circuit between them.

An asynchronous message (in either numbers or words) that the modem sends to the DTE after executing or trying to execute a command.

A type of 6-position jack normally used with permissive dial networks and telephone sets.

A type of 8-position jack normally used with programmable dial networks.

A TELCO service whereby multiple lines to a customer site share a common telephone number.

Shared Diagnostic Control Panel. The feature that allows a number of carrier-mounted devices to be controlled by a single control panel. Installed on one COMSPHERE 3000 Series Carrier, the SDCP permits control and configuration of devices in up to 8 carriers.

A way of transmitting data in which bits are sent sequentially one at a time.

Glossary-6 January 1999 3821-A2-GB20-40