Tone Dialing - Diamond SupraExpress 56e Manual

Throughput

Tone Dialing

Trunk Line
TSR
UART
98
Effective transfer rate. Generally, on a 14,400 bps connection, data will transfer at a maximum
of 14,400 bps, so max. throughput is 14,400 bps. But on a 14,400 bps V.42bis connection
(V.42bis compresses the data to one-fourth its size) throughput can be four times that of the
non-V.42bis 14,400 bps connection, or 57,600 bps.
Commonly known as touch tone, tone dialing is a means of telling phone company equipment
the number to be reached by means of differing tones for each number. Tone telephones have a
dialing keypad, though some keypad phones use pulse dialing. All Supra modems can use
either tone or pulse dialing.
The path connecting your phone system to the phone company's Central Office.
See Terminate and Stay Resident.
Universal Asynchronous Receiver/Transmitter. UART chips control the serial port/s on personal
computers. The UART is a device, usually a integrated circuit chip that performs the parallel-
to-serial conversion of digital data that has been transmitted. The UART converts the incoming
serial data from a modem into the parallel form which your computer handles. UART also
does the opposite, converting the computer's parallel data into serial data suitable for
asynchronous transmission on phone lines.