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read-only memory (ROM)
Storage system or computer memory that is "burned into" the microprocessor chip and can be read, but not written to or modified. ROM is nonvolatile memory.
redundancy
The duplication of software, or hardware, or both (such as redundant CPUs) used as a standby in case one fails.
SDI
Serial Data Interface. A family of cards equipped with SDI ports provide the I/O interface for the CS 1000M Large Systemand Meridian 1 Large System.
software
A set of programmed instruction sequences stored either as resident programs in system memory or as nonresident programs stored on disk and loaded into memory when needed.
software generic
A term used to identify the system software. Each software generic has a series of releases, such as Release 25.
system monitor
A
system utility card
Provides an interface between the security device and the computer.
TDS
Tone and Digit Switch
Time Compression Multiplexing (TCM)
The combination of two or more information channels into a single transmission channel by assigning each information channel an exclusive periodic transmission time interval.
TN
Terminal Number
Nortel Communication Server 1000
Communication Server 1000M and Meridian 1 Large System Overview
30 September 2008
