INSTALLATION

2

 

2.6.2Pass-Through

Pass-through mode allows two or more devices to be connected to a single external serial interface.

Each DS1500 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 figure below:

1

 

 

DS1500

2

DS1500

1

 

Host

3

3

1Main serial interface

2Auxiliary serial interface

3External Trigger (for On-Line mode)

Figure 20 – Pass-Through Layout

The Auxiliary RS232 interface is only available when the main interface is RS232.

NOTE

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