Barcode Scanner VB14
Main Serial Interface
Subject to reasonable modifications due to technical advances.
Copyright Fuchs, Printed in Germany
Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
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Main Serial Interface
The signals relative to the following serial interface types are available on the input/
output connector of VB14 depending on the VB14 model (see Section 3.3).
If the interface type is not compatible with the current communication handshaking,
then the system forces the handshake to
none
.
The parameters relative to the interface selected (baud rate, data bits, etc.) can be
defined using the VisoSetup utility program or "Host Mode" programming procedure
through ESC sequences installed from the CD-Rom.
Details regarding the connections and use of the interfaces are given in the next
paragraphs.
RS232 Interface
The serial interface is used in this case for point to point connections; it handles
communication with the host computer and allows both transmission of code data and
the programming of the scanner. This is the default setting.
The following pins are used for RS232 interface connection:
Figure 8.1 RS232 main interface connections using hardware handshaking
The RTS232 and CTS232 signals control data transmission and synchronize the
Connector
25-Pin
Name
Function
2
TX232
transmitted data
3
RX232
received data
4
RTS232
request to send
5
CTS232
clear to send
7
GND/SGND
Signal ground
USER
INTERFACE
TX232
RX232
RTS232
CTS232
SGND
RXD
TXD
DCD
DTR
SGND
2
3
4
5
7
VB14 25-pin
