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
D
a
te
of
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0
7/
18
/2
0
0
2
17
connected devices.
Figure 8.2 RS232 control signals
If the RTS/CTS handshaking protocol is enabled, the VB14 activates the RTS232
output to indicate a message is to be transmitted. The receiving unit activates the
CTS232 input to enable the transmission.
RS485 full-duplex interface
The RS485 full-duplex interface is used for non-polled communication protocols in
point to point connections over longer distances than those acceptable for RS232
communications or in electrically noisy environments.
The connector pinout follows:
Connector
25-pin
Name
Function
2
TX485+
RX485 transmitted data +
4
TX485-
RX485 transmitted data -
3
RX485+
RX485 received data +
5
RX485-
RX485 received data -
7
SGND
Signal ground
DATA
TRANSMISSION
DATA
TRANSMISSION
TRANSMISSION
STOPPED
ENABLED
ENABLED
DISABLED
IDLE
IDLE
+V
RTS
-V
+V
TX DATA
-V
+V
RTS
-V
C1 C2
C3 C4 C5