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Glossary
Issue 1 October 1998
8-3
F
Facility
Transmission facilities. Usually a two metallic pair set of cords, but can be
telephone company carriers, T-1, microwave or dial-up
telecommunications lines.
L
LED
Light-emitting diode. A semiconductor diode which emits light when a
current is passed through it, indicating that the power is on.
O
On-premise Lines
Communication lines (usually twisted-pair) that are used to connect the
ECS to the DEFINITY ECS telephone.
R
Remote Module
The DEFINITY Extender 1101
System that connects to the remote
DEFINITY ECS telephone.
RS-232
9 Position Non-Synchronous Interface Between Data Terminal
Equipment and Data Circuit-Terminating Equipment Employing Serial
Binary Data Interchange (ANS/EIA/TIA-574-90)