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JANUS? 2020 Hand-Held Computer (4MB) - Intermec

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POWER.EXE<br />

NF BC Software Utility Reference<br />

D<br />

POWER.EXE lets you adjust the reader’s power management at the DOS<br />

prompt. It provides power-saving features and an application program<br />

interface (API) that applications can use. POWER.EXE works through the<br />

Advanced Power Management (APM) interface. IRL programs and programs<br />

that use Reader Services do not require POWER.EXE.<br />

To change the level of power management, type this command at the reader’s<br />

DOS prompt:<br />

Syntax: [drive:][path]power.exe [adv[:max | reg | min] |<br />

std | off][/low]<br />

where:<br />

drive:path specifies the location of the POWER.EXE file.<br />

adv:max<br />

adv:reg<br />

adv:min<br />

std<br />

off<br />

conserves the reader’s power when applications and hardware<br />

devices are idle. Performance may be affected if an application is<br />

active instead of idle. Use max for maximum power<br />

conservation. Use reg to balance power conservation with<br />

performance. Use min (default) if performance is not<br />

satisfactory with max or reg.<br />

conserves the reader’s power. Use std to conserve power by<br />

using only the power management features of your hardware.<br />

Use off to turn off POWER.EXE. If POWER.EXE is off, the date<br />

is not updated when you turn off the reader. If you use your<br />

own APM interface, it should be able to update the date each<br />

time the reader is turned on and the date has changed.<br />

low loads POWER.EXE into conventional memory, even if the upper<br />

memory area is available. By default, POWER.EXE is loaded<br />

into upper memory if it is available.<br />

Notes: To display the current power setting, type the command:<br />

power<br />

You can view the power settings screen with the viewport or use Interlnk to<br />

view the settings on the host. POWER.EXE is embedded in the software and is<br />

set by default to adv:min. The <strong>JANUS</strong> <strong>2020</strong> has its own power management for<br />

maximum efficiency<br />

POWER.EXE gives you an estimate of the amount of NiCad power that is left<br />

in the reader’s battery pack. This estimate is accurate to ± 10 %. The accuracy<br />

of the estimate depends upon variables such as the temperature and age of the<br />

battery pack. You may find that POWER.EXE performs differently for each<br />

battery pack. For example, when POWER.EXE indicates that the battery life is<br />

at 20%, the battery pack is getting low and you need to replace it soon.<br />

D-9

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