Microscan MS-3 Manual Book page 39

Chapter 3
Point-to-Point with RTS/CTS
Definition: Point-to-Point with RTS/CTS (request-to-send/clear-to-send) is a
simple hardware handshaking protocol that allows a scanner to initiate
data transfers to the host.
Usage: A scanner initiates a data transfer with an RTS (request-to-send) trans-
mission. The host, when ready, responds with a CTS (clear-to-send)
and the data is transmitted. CTS and RTS signals are transmitted over
two dedicated wires as defined in the RS-232 standard.
Used only with RS232.
Serial Cmd: <K140,,1>
Point-to-Point with XON/XOFF (Transmitter On/Off)
Definition: This option enables the host to send the XON and XOFF command as a
single byte transmission command of start (^Q) or stop (^S).
Usage: If an XOFF has been received from the host, data will not be sent to the
host until the host sends an XON. During the XOFF phase, the host is
free to carry on other chores and accept data from other devices.
Used only with RS232.
Serial Cmd: <K140, 2>
Point-to-Point with RTS/CTS & XON/XOFF
Definition: This option is a combination of Point-to-Point with RTS/CTS and
Point-to-Point with XON/XOFF.
Usage: Used only with RS232.
Serial Cmd: <K140,3>
MS-3 Laser Scanner User's Manual
Protocol
3-5