Serial communication and wedge options – PSC Scanners User Manual

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Data Synchronization

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Serial Communication and Wedge Options

The following communication options are used to define how your
PSC scanner communicates with the host system through its serial
interface or its keyboard wedge interface.

A message transmitted from the scanner upon a successful decode
has the following format:

Some of these attributes, e.g., prefix, preamble, etc., may not be
required or may vary from one host system to another. The parameter
selection process allows you to tailor these elements for the particular
requirements of your host system. You may also program an inter-
character delay to prevent data overrun problems with your host ter-
minal.

Options specific to serial communications are:

Baud Rate

Protocol

Parity

Inverted Serial

Stop Bits

External Trigger

Word Length

Buffering Level

Each of these options is discussed in greater detail in the section on
Serial Communication Parameters.

Prefix

Terminal

ID

Preamble

Code ID

Data

Postamble

Suffix

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