Instruction manual
MERLIN LEGEND Communications System Release 5.0
Maintenance and Troubleshooting
555-650-140
Issue 1
June 1997
Glossary
Page GL-36
square key Configuration in Key mode operation in which all
outside lines appear on all telephones.
station
See
extension.
station jack
See
extension jack.
Station Message
Detail Recording
See
SMDR.
Supplemental Alert
Adapter
See
SAA.
switchhook flash Momentary (320 ms to 1 second) on-hook signal
used as a control signal. May be directed either to
the control unit
or to a
host
switch outside the
system. Also called “Recall” or “timed flash.”
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.










