User guide

WA_DEV_FEX20_UGD_002 Rev 004 March 08, 2011 56
Fastrack Xtend User Guide
Signals and Indicators
6.5. Real Time Clock (RTC)
The Fastrack Xtend has implemented Real Time Clock for saving date and time when the Fastrack
Xtend is unplugged from the DC power supply through the DC power cable.
Table 41. Real Time Clock Specifications
Item
Minimum
Typical
Maximum
Charging Time start from fully discharged to fully charged
15 Hours
RTC Time Period*
Guaranteed
30 Hours
Not guaranteed
60 Hours
* This RTC time period is measured when the RTC battery is fully charged before the Fastrack Xtend is
unplugged from the DC power source.
* This RTC time period is for temperature from -20C to +60C. Once the operating/storage temperature is
beyond this range, this time period is not guaranteed..
Caution: When the Fastrack Xtend is shipped out, the charging voltage of the RTC battery is not guaranteed.
Once the Fastrack Xtend is on power, the RTC battery will start charging and the RTC feature can
then be resumed.