Pass Through - Datalogic DX8200A Reference Manual

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2.5.2 Pass Through

When Pass Through is activated on the Auxiliary interface, the DX8200A reader 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 DX8200A transmits the messages received by its auxiliary interface 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.
DX8200A
CAB601X
P.S.*
PWR-120
1
Main Serial Interface
2 Auxiliary Serial Interface
* P.S. (Presence Sensor) connected to External Trigger/PS input.
Figure 33 – Pass Through Connection for DX8200A Standard Models
28
P.S.*
C-BOX 100
AUX.
MAIN
2
Local Host
1
P.S.*
DS4600A
C-BOX 100
1 2
DX8200A
Gryphon
DS4600A
C-BOX 100
1