Symbol PTC-2124, Руководство пользователя

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Other features
PTC-2124 User’s Guide 17
Other features
Advanced power management
Reduced power state
The PTC goes into a reduced power state if it is not
used for a period of time or if it is suspended using the
On/Off button. In the reduced power state, the PTC
turns off portions of its internal electronics to
conserve power.
The PTC has two stages of reduced power. The first
stage (standby) begins after approximately 1 minute
of inactivity. During this stage, the PTC’s screen goes
blank, the backlight turns off, and other subsystems
inside the PTC may slow down or turn off to conserve
power. The PTC’s CPU LED blinks red every 2
seconds to indicate that the PTC is in standby mode.
The application program running at the time is
suspended, and any data in RAM are protected.
The second stage (suspend) begins approximately 16
minutes after the PTC enters the standby mode or if
the On/Off button is pressed while the unit is
operational. This stage turns off additional hardware
elements and provides only minimal memory refresh
operations. The CPU LED blinks every 4 seconds.
The exact amount of time before the PTC goes into
either reduced power state is programmable. Consult
the PTC-2124 Software Guide for programming
instructions.
Resume
Refer to the PTC-2124 Software Guide
for a list of other possible wake
sources.
When the PTC is in standby mode, touching the
PTC’s screen with the stylus or pressing the On/Off
button turns the PTC back on and returns you to the
point at which you left the application.