Installation & Operation Manual TCC70XS
Page 42
3.2.4
Version: Information about Status of Hardware and Firmware
This page lists information about hardware, about firmware, and about installed options.
3.2.5
Buffered Real
–Time Clock
The Ethernet module is equipped with a buffered real
–
time clock (RTC), which keeps the time
& date even at power loss. Buffering is done by means of a capacitor; buffering time will be
one up to three days.
Upon power-up, the internal real
–
time clock of the 3G-Video module starts with the time of
this buffered clock if no data of a real
–
time reference can be received. The status monitor of
the 3G-Video module indicates at its
Time and Date
page, that the real
–
time has started this
way:
last used source
=
rtc
.
The buffered clock can be set in the following ways:
•
the first time TCC70XS receives data from a real
–
time reference;
•
the first time TCC70XS receives data from a real
–time reference which indicates “lock”
state;
•
if the internal real
–
time clock of the 3G-Video module is set manually;
•
periodically once a day.
