
Barcode Scanner VB12
Installation
Subject to reasonable modifications due to technical advances.
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5.4.2
Main serial interface - RS 485 half-duplex
The RS 485 half-duplex interface (3 wires + screen) is used for polled communication
protocols.
It can be used for multidrop connections in a master/slave layout.
The connector pinout follows:
Figure 5.10
RS485 half-duplex connections
5.4.3
Auxiliary interface - RS 232
The auxiliary serial interface is used exclusively for RS 232 point-to-point
connections. It is also used for configuring the VB12 scanner.
Pin
Name
Function
5
RS 485 transmitted/received data +
4
RTX485-
RS 485 transmitted/received data -
7
SGND
Signal ground
For this interface type, the multidrop address must also be set via serial
channel by the VisoSetup utility or by ESC sequences.
The parameters relative to the auxiliary interface (baud rate, data bits,
etc.) can be defined using the VisoSetup utility program.
5
4
7
RS485 Ref
USER INTERFACE
VB12
RTX485 -
SGND
RTX485 -