Glossary
GL-4 Issue 2 November 2001
Diagnostics
Programs that run on the computer part of the PBX to check for actual as well as potential faults
and problems in the system. Diagnostics normally run automatically at pre-defined intervals.
Disk Drive
A mechanical device that stores data on and retrieves data from one or more disks.
DRAM
Dynamic Random Access Memory. Memory used on the Passive Bus CPU Card.
E
Electronics Industries Association (EIA)
A trade association of the electronics industry that establishes electrical and functional standards.
ESAI
Ethernet-Switch Application Interface. Also see Ethernet.
ESD
ElectroStatic Discharge. Discharge of electrons from foreign bodies (for example, service person-
nel) into a board for which board design must include protection measures to avoid damage on
ESD discharges.
Ethernet
A local area network that connects computers, printers, workstations, terminals etc. within the
same building. Ethernet operates over twisted wire and over coaxial cable at speeds up to 10
mbps. For LAN interconnections, Ethernet is a physical link and data link protocol.
F
FCC
Federal Communication Commission. U.S. regulatory body which dictates Part 15 (radiated emis-
sions) and Part 68 (conducted emission) requirements on telephony equipment.
Firmware
Software stored in a ROM/PROM/EPROM/EEPROM FLASHROM to operate a control application.
FLASH Memory
Non-volatile memory used in the platform on the TN Parent Board and on the Passive Bus CPU
card to preserve memory contents on loss of power. Contents alterable under software control.
Flashware
Software stored in a Flash PROM.
G
G3MT
G3 Management Terminal. It is also known as System Access Terminal (SAT). The primary
craftsperson interface into a DEFINITY system for administrative and maintenance functions.
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