Datalogic Scanning QD2100 User Manual

RS-232 ONLY Interface

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). Hand-
shaking Control includes the following options:

•

RTS — RTS is asserted during transmissions. CTS is ignored.

•

RTS/CTS — RTS is asserted during transmissions. CTS gates transmissions.

•

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 transmis-
sions and controls enable and disable state of scanner.

ENTER/EXIT PROGRAMMING MODE

Handshaking Control = RTS

Handshaking Control = RTS/CTS

Handshaking Control = RTS/XON/XOFF

Handshaking Control = RTS On/CTS

Handshaking Control = RTS/CTS Scan Control

DEFAULT