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Glossary
processor module
Module in the second slot of the control unit (Slot 0, to the
right of the power supply module). Includes the software
and memory that runs the system.
programming port
Reassignment of the system programming jack position to
reassignment
any of the first five extension jacks on the first MLX module
in the control unit.
protocol
Set of conventions governing the format and timing of
message exchanges between devices, such as an MLX
telephone and the control unit.
public network
Network that is commonly accessible for local or long-
distance calling. Also called “public switched telephone
network. ”
Q
QCC
(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.
R
RAM
(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.
read-only memory
See ROM.
Maintenance and Troubleshooting GL-27