Symbol PDT 8000, Product Reference Manual

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1-35
Getting Started
The control of the function to display a message box on low battery capacity shutdown and
the text for the message are kept in a registry keys.
;
; Display message when radio shut off due to low battery capacity
;
;
0 = disable low capacity shut off message
; 1 = enable low capacity shut off message
;
"DisplayLowCapacityShutOffMsg"=dword:1
"LowCapacityShutOffText"="The modem has been shut down due to low battery capacity"
After the serial driver has turned off the modem, due to low battery capacity, all subsequent
serial port calls, except for the port close, will return an error and set last error to
LH1_WAN_BATTERY_LOW 0xA0000100.
Critical Low Battery During Suspend
When a critical low battery condition occurs while the terminal is suspended with the
modem powered the Power Micro/Battery Driver will remove power from the modem.
Upon resume the serial driver checks if power has been removed from the modem. If power
has been removed from the modem, all subsequent serial port calls, except for a port close,
will return an error and set last error to LH1_WAN_BATTERY_LOW 0xA0000100.
Battery Pull
After the modem has been powered up, a battery removal or battery door open will cause
power to be removed from the modem. The serial driver monitors the battery removal/
battery door message event from the Battery Driver and remove the power from the
modem.
After the battery and/or battery door has been replaced and the terminal resumes, all
subsequent serial port calls, except for a port close, will return an error and set last error to
LH1_WAN_BATTERY_PULL 0xA0000101.