Powering A Terminal On And Off; Normal Power; Automatic Power; Forcing Power Off - Symbol Series 3100 Product Reference Manual

Series 3100/3500 Product Reference Guide

Powering a Terminal On and Off

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 processing 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.
Powering the terminal on does not boot the system or initialize either the program or
data. For more information on initialization, refer to Chapter 2.

Normal Power

Note: If the terminal uses a NiCd or NiMH battery for power,
charge the battery before use!
To power the terminal on or off, press <PWR>.

Automatic Power

Depending on the application, a number of other events may turn a terminal on or off.
Some of these are:
Power On
• The system powers on when a key other than <PWR> is pressed.
• The system powers on when a scanner trigger is pressed.
• The program powers on the system at a preset time to perform unattended
operations, such as an overnight communications session.
• The program powers on the system in response to a modem ring or an RS-232
device connected to the RJ connector.
Power Off
If not used for a specific period of time, as determined by the application, the system
powers off automatically to conserve power.

Forcing Power Off

If a terminal freezes in the middle of operation, pressing <PWR> does not power it off.
You can force the system to power off, which reduces the drain on the batteries until
you can download any collected data to the host system.
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