Glossary

multiplexing

A method for interleaving several access channels onto a single circuit for transmission

 

over the network.

node

A connection or switching point on the network.

non-latching

A non-latching loopback can only be initiated or terminated by the 56 kbps network service

loopback

provider.

NS

No Signal. A network-reported condition.

OOF

Out Of Frame. An error condition in which frame synchronization bits are in error. A

 

network-reported condition.

OOS

Out of Service. A digital network trouble signal.

PAD

Packet Assembler/Disassembler.

point-to-point circuit

A data network circuit with one control and one tributary device.

protocol

The rules that govern how devices exchange information on a network. It covers timing,

 

format, error control, and flow control during data transmission.

PSTN

Public Switched Telephone Network. A network shared among many users who can use

 

telephones to establish connections between two points.

reset

A reinitialization of the device that occurs at power-up or in response to a reset command.

RIP

Routing Information Protocol. Specifies the routing protocol used between DSUs.

RLSD

Receive Line Signal Detect. See CD.

router

A device that makes decisions about the paths network traffic should take and forwards

 

that traffic to its destination. A router helps achieve interoperability and connectivity

 

between different vendor's equipment, regardless of protocols used.

RS-232

An EIA standard for the 25-pin DCE/DTE interface. Same as EIA-232.

RTS

Request to Send. An EIA-lead standard for V.24 circuit CT 105; an input signal

 

(DTE-to-DCE).

RXC

Received Clock. An EIA-lead standard for V.24 circuit CT 115; an output signal

 

(DCE-to-DTE).

RXD

Received Data. An EIA-lead standard for V.24 circuit CT 104; an output signal

 

(DCE-to-DTE).

SDLC

Synchronous Data Link Control. A standard data link protocol.

synchronous

Data transmission that is synchronized by timing signals. Characters are sent at a fixed

 

rate.

TDM

Time Division Multiplexer. A device that enables the simultaneous transmission of multiple

 

independent data streams into a single high-speed data stream.

TM

Test Mode. An EIA-lead standard for V.24 circuit CT 142; an output signal (DCE-to-DTE).

TXC

Transmit Clock. An EIA-lead standard for V.24 circuit CT 114; an output signal

 

(DCE-to-DTE).

TXD

Transmit Data. An EIA-lead standard for V.24 circuit CT 103; an input signal

 

(DTE-to-DCE).

V.35

ITU-T standard for a high-speed, 34-pin, DCE/DTE interface.

WAN

Wide Area Network. A network that operates over long distances and spans a relatively

 

large geographic area (e.g., a country).

7510-A2-GB20-00

March 1997

GL-3

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Paradyne 727 manual Multiplexing, Node, Non-latching, Point-to-point circuit, Protocol, Reset, Router, RS-232, Synchronous

727 specifications

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