Lucent Technologies MERLIN LEGEND Release 6.1 System Planning Manual page 567

MERLIN LEGENDCommunications System Release 6.1
System Planning 555-661-112
Glossary
Q
QCC
R
RAM
read-only memory
Remote Access
restore
restricted data
channel
ring generator
riser cable
RS-232
robbed-bit
signaling
ROM
(Queued Call Console) MLX-20L telephone used by a
system operator in Hybrid/PBX mode only. Used to answer
outside calls (directed to a system operator position) and
inside calls, direct inside and outside calls to an extension
or an outside telephone number, serve as a message
center, make outside calls for users with outward calling
restrictions, set up conference calls, and monitor system
operation.
(random-access memory) Computer memory in which an
individual byte or range of bytes can be addressed and
read or changed without affecting other parts of memory.
See ROM .
System feature that allows an outside caller to gain access
to the system, almost as if at a system extension. In a
private network , remote access settings are used to control
calls routed via ARS or UDP routing across the network.
Procedure whereby saved and archived system
programming is reinstated on the system, from a floppy
disk or memory card . See also backup .
Restricted data channels do not allow the transmission of
occurrences of more than seven contiguous zero bits. See
also unrestricted data channel.
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.
Issue 1
August 1998
Page GL-23