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MERLIN LEGENDCommunications System Release 6.1
System Planning
555-661-112
Issue 1
August 1998
Glossary
Page GL-25
SPM (System Programming and Maintenance)
DOS
-, UNIX-, or
Windows-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
.
system
acceptance test
Test of all trunks, telephones, data terminals, and features
after installation to ensure that they are working correctly.
System Access
buttons
See
SA buttons
.
system date and
time
Date and time that appear on MLX display telephones and
SMDR
reports.
system
programming
Programming of system functions and features that affect
most users, performed from an MLX-20L telephone or a
computer using
SPM
. See also
extension programming
and
centralized telephone programming.