Backup battery
!
Do not store a PTC-960RL for over
two months without charging or
replacing the battery. Both the main
battery and the backup battery will
be drained, and any data or pro-
grams loaded into the PTC’s memory
will be lost.
The PTC-960RL’s built-in backup battery provides
enough power to protect data stored in the PTC’s
memory when the nickel-cadmium battery pack or
alkaline battery is being replaced or if it runs out of
power. The backup battery system provides
approximately 20 minutes of protection when the
main battery is removed.
Beeper
The PTC’s beeper is used by the PTC and your
application program to warn you of problems or to
prompt you to take an action. For example, if your
application program has temporarily turned off a key,
the PTC will beep if you press that key.
Depending on your organization’s application
software, you may be able to control the beeper’s
volume. See the manual or information provided by
your organization.
Clock
The PTC-960RL has a built-in clock that keeps track
of the date (month, day, year, and day of the week) and
the time (hours, minutes, seconds, and tenths of
seconds). The clock operates continuously. How the
clock is used depends on your application program.
For example, the PTC can use the clock to show the
date and time on its display or to direct a printer to
place a time stamp on a report.
Communication
The PTC-960RL is capable of communicating with a
host computer through its optional internal radio,
through an optional communication cradle, or by
being connected directly via a cable. See the manual
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