Introduction; Powering On The Pdt 7500 - Symbol PDT 7500 Series Product Reference Manual

PDT 7500 Series Product Reference Guide for DOS

Introduction

This chapter describes how to operate a PDT 7500 terminal, including:
powering the PDT 7500
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booting the terminal
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adjusting the display's contrast
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using the keyboard
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entering data through the integrated scanner
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communicating.
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Once the terminal is initialized and power is applied via a fully charged battery pack or a
power source, it is ready for operation.

Powering on the PDT 7500

Because the terminal is battery powered, it is important to save power whenever possible. You
can minimize power loss and increase battery life by turning the terminal off when data is not
being entered.
While the terminal's processor and display are off, programs or data in the system's memory
are retained. Before the terminal powers up, it checks the batteries for enough power to
ensure reliable operation and data storage. Power-up restores the display, and processing
continues from where it was before power-down.
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