AT&T MERLIN LEGEND Release 3.1 System Planning Manual page 371

Glossary
ring generator
riser cable
RS-232
robbed-bit
signaling
ROM
S
SAA
SA buttons
SDN
SID
simplex signaling
signaling
single-line
telephone
slot
SMDR
Circuit pack added to the power supply that generates a
high-voltage, 20–30 Hz signal to ring a telephone.
Cable that runs between floors in a multistory building and
connects wiring closets.
Physical interface, specified by the Electronics Industries
Association ( EIA ), that transmits and receives
asynchronous data at distances of up to 50 feet (15 m).
Signaling in which the least significant bit of every sixth
frame per channel is used for signaling in that channel.
(read-only memory) Computer memory that can be read
but cannot be changed.
(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.
Telephone buttons that provide a single interface to users
for both inside and outside calling.
(Software Defined Network) AT&T private networking
service created by specialized software within the public
network.
(station identification)
Transmission of signals in one direction only across a
telecommunications channel.
Sending of control and status information between devices
to set up, maintain, or cease a connection such as a
telephone call.
Industry-standard touch-tone or rotary-dial telephone that
handles only one call at a time and is connected to the
system by an extension jack on a basic 012, 016, or 008
OPT module.
Position in a carrier for a module; numbered from 0
( processor module ).
(Station Message Detail Recording) Feature that captures
detailed usage information on incoming and outgoing
voice and data calls.
GL–23
System Planning