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INSTALLATION
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2.5.2 Pass Through
When Pass Through is activated on the Auxiliary interface, the DX6400 reader (all models)
can be integrated in a network consisting of different scanners not provided with a Lonworks
interface.
This connection mode allows two or more devices to be connected to a single external serial
interface. The DX6400 transmits the messages received by its auxiliary interface (RS232
only) onto its main interface.
In this configuration a series of scanners can be connected together using RS232 on the
main interface and all messages will be passed through this chain to the host. The reading
phase of each scanner is independent from the others. In Pass Through connections each
scanner is provided with its relative External Trigger (multi P.S.).
Applications can be implemented to connect a device such as a hand-held reader to the
Auxiliary port for manual code reading capability.
For the RS232 connections the maximum cable length is 15 m (50 ft).
The DS4600A scanners represented in the following figures are configured in Pass Through
mode.
P.S.*
P.S.*
Gryphon
DX6400
DS4600A
DS4600A
CAB-600X
C-BOX 100
C-BOX 100
C-BOX 100
AUX
MAIN
P.S.*
1
2
1
2
Local Host
1
PWR-120
1
2
Main Serial Interface
A
uxiliary Serial Interface
* P.S. (Presence Sensor) connected to External Trigger/PS input.
Figure 38 – Pass Through Connection for DX6400 Master/Slave Models
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