Synchronous, Data transmission, Star configuration – Lucent Technologies MERLIN LEGEND 6 User Manual

Page 448

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MERLIN LEGEND Communications System Release 6.0
System Manager’s Guide

555-660-118

Issue 1

February 1998

Glossary

Page GL-24

single-line
telephone

Industry-standard touch-tone or rotary-dial telephone that
handles one call at a time and is connected to the system
via an

extension jack on a 012, 016, or 008 OPT module.

slot

Position in a

carrier for a module; numbered from 0.

SMDR

(Station Message Detail Recording) Feature that captures
usage information on incoming and outgoing calls.

SMDR printer

Printer used to produce SMDR reports. Connected to the
system via an RS-232 jack on the

processor module.

Software Defined
Network

See

SDN.

special character

Pause, Stop, or End-of-Dialing signal in a programmed
dialing sequence such as a speed dial number.

SPM

(System Programming and Maintenance)

DOS- or UNIX

System-based application for programming the system.

square key

Configuration in

Key mode operation in which all outside

lines appear on all telephones.

star configuration

A

private network arrangement where either three or more

communications systems are connected with one system
acting as the

hub system. See also series configuration.

station

See

extension.

station jack

See

extension jack.

Station Message
Detail Recording

See

SMDR.

Supplemental
Alert Adapter

See

SAA.

switch

See

communications system.

Switched 56
service

DS1 Switched 56 Service is an end-to-end digital, 56-kbps,
full duplex, synchronous, circuit-switched service offering.
The service is offered by network service providers and by
some Local Exchange Carriers (LECs) as circuit-switched,
56-kbps service.T1-emulated tandem tie trunks in a private
network can be programmed for data.

switchhook flash

Momentary (320 ms to 1 second) on-hook signal used as a
control; may be directed to the control unit

or to a host

switch outside the system. Also called “Recall” or “timed
flash.”

switch identifier

A number assigned to a

tandem trunk in a private network.

It identifies the system connected to the far end of the
trunk. Switch identifiers are based on the type of system
and its distance from the system where the identifier is
assigned. See also

satellite system and non-satellite

system.

synchronous data
transmission

Method of transmitting a continuous digital data stream in
which the transmission of each binary

bit is synchronized

with a master clock. See also

asynchronous data

transmission.

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