Telebit T3000 Reference Manual page 219

redundancy check - Technique of error detection
involving the transmission of additional data related
to the message so that the receiving device can
determine if the data transmitted is valid (error-free).
Request to Send (RTS) - RS-232D control signal
used by the DTE to inform the DCE that it is ready to
transmit data. When used for flow control between
the DTE and modem, this signal indicates to the
modem that the DTE is ready to accept data.
Ring Indicator (Rl)-RS-232D control signal used
by the DCE to inform the DTE that it is receiving a
ringing signal.
ROM - Read Only Memory.
RS-232D - Recommended standard of the
Electronics Industries Association for the interface
between data terminal equipment and data
communications equipment.
s
serial transmission - Method of transmission in
which each data bit is transmitted sequentially.
software - Computer program or set of computer
programs held in storage, and loaded into RAM for
execution.
SOH - Start of Header. Control character used in
synchronous transmissions indicating the start of a
header block.
space - One of the two possible states of a binary
data element. The open circuit condition in a
teleprinter circuit. Also see mark.
Glossary-12