Barcode Scanner VB14
TYPICAL LAYOUTS
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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12.2
Pass-Through
Pass-through mode allows two or more devices to be connected to a single external
serial interface.
Each VB14 transmits the messages received by the Auxiliary interface onto the Main
interface. All messages will be passed through this chain to the host.
When On-Line Operating mode is used, the scanner is activated by an External
Trigger (photoelectric sensor) when the object enters its reading zone.
The Main and Auxiliary ports are connected as shown in the following figure:
Figure 12.2 Pass-through layout
VB14
1
2
1
3
3
VB14
VB14
Host
1
Main serial interface
2
Auxiliary serial interface
3
External Trigger (for On-Line mode)
