RS-232 ONLY Interface
30 QuickScan™ I QM21X1 / QBT21X1
Handshaking Control
The data interface consists of an RS-232 port designed to operate either with
or without the hardware handshaking lines,
Request to Send
(RTS), and
Clear to
Send
(CTS). Handshaking Control includes the following options:
• RTS — RTS is asserted during transmissions. CTS is ignored.
• RTS/CTS — RTS is asserted during transmissions. CTS gates transmis-
sions.
• RTS/XON/XOFF — RTS is asserted during transmissions. CTS is ignored.
XON and XOFF gate transmissions.
• RTS On/CTS — RTS is always asserted. CTS gates transmissions.
• RTS/CTS Scan Control — RTS is asserted during transmissions. CTS gates
transmissions and controls enable and disable state of reader.
$CR2HC00
Handshaking Control = RTS
$CR2HC01
Handshaking Control = RTS/CTS
$CR2HC02
Handshaking Control = RTS/XON/XOFF
$CR2HC03
Handshaking Control = RTS On/CTS
$CR2HC04
Handshaking Control = RTS/CTS Scan Control
DEFAULT
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