5. ELECTRICAL DESCRIPTION
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5.6 Real Time Clock
The module contains a real time clock (RTC) to maintain accurate
timekeeping and to enable “timestamping” of messages.
The RTC is powered all the time that the Control Terminal is turned on.
When the Control Terminal is powered off, a storage energy device within
the module provides back-up power to maintain the RTC for several hours
- please contact Sony Ericsson Customer Support for more information.
The RTC back-up is fully charged after approximately 10 hours with the
control terminal turned on. Once fully charged the RTC back-up will
maintain the Real Time Clock for at least 8 hours.
5.7 Software Updates
It is possible, and sometimes necessary, to update the module software.
Updates must be carried out by a Sony Ericsson approved technician. Please
contact your supplier for details (see “Service and Support”, page 9).