Introduction
Glossary
GL-4
Issue 1 April 1994
CTS
Clear-To-Send. A signal, sent to the computer via Pin 5 of an
EIA RS-232 interface, indicating that the modem is ready for the
computer to transmit data.
D
data compression
The elimination of empty fields, redundancies, and gaps in order
to reduce storage capacity needs and the amount of data to be
transmitted. Anything that is eliminated is restored after the data
is received.
Data mode
One of two general operating modes; the other is Command
mode. When in Data mode, the modem considers any input
from the computer to be data and transmits it across the
telephone line to the remote modem.
data-only mode
A selectable state of VoiceSpan
t
in which no sound is
transmitted in one direction in order to maximize the rate of data
transmission.
DataBurst
t
An automatic feature of VoiceSpan that maximizes the rate of
data transmission during audio silences in the same direction.
DCE
Data Communications Equipment. A modem.