Datalogic DS6500 Series, Справочное руководство

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DS6500
36
2
2.7.2 Pass Through
When Pass Through is activated on the Auxiliary interface, the DS6500 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 DS6500 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 (49.21 ft).
The DS4600A scanners represented in the following figures are configured in Pass Through
mode.
E
NT
<
<
EN
T
<
<
1
2
Main Serial Interface
Auxiliary Serial Interface
Figure 60 – Pass Through Connection for DS6500 Master/Slave Models
P.S. P.S.
P.S.
DS6500
MAIN
AUX
C-BOX 100
DS4600A
Gryphon
Local Host
PWR-120
C-BOX 100 C-BOX 100
DS4600A
1 2 1
1
2
CAB600X