Instruction manual

MERLIN LEGEND Communications System Release 5.0
Maintenance and Troubleshooting
555-650-140
Issue 1
June 1997
Glossary
Page GL-34
S
riser cable Cable that runs between floors in a multistory
building and connects wiring closets.
RS-232 Physical interface, specified by the Electronics
Industries Association (
EIA ), that transmits and
receives
asynchronous data at distances of up to 50
feet (15 m).
robbed-bit
signaling
Signaling in which the least significant
bit of every
sixth frame per channel is used for signaling in that
channel.
ROM (read-only memory) Computer memory that can be
read but cannot be changed.
SAA (Supplemental Alert Adapter) Device that permits
-48-VDC alerting equipment to be connected to an
analog multiline telephone jack so that people
working in noisy or remote areas of a building can be
alerted to incoming calls.
SA buttons Telephone buttons that provide a single interface to
users for both inside and outside calling.
screen pop Refers to a computer-telephony software application
that takes caller information (for example, provided
by Caller ID service), queries a database, and
displays a screen with information about the caller at
the user’s PC screen. Screen pop requires that an
identifying number or code be available to identify
the calling party.
See also CTI link.