Psion Teklogix PX750 Manual Do Utilizador

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Chapter 5: Configuration
Power Properties
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Psion Teklogix NEO Hand-Held Computer User Manual
5.5.4.3 Suspend Threshold
The Suspend Threshold lets you to determine when NEO will shut down. If the slider is left 
at the default value, Maximum Operating Time, the hand-held will run until the battery is 
completely empty; the RAM is only backed up for a short period of time. If you choose 
Maximum Backup Time, the hand-held will shut off with more energy left in the battery so 
RAM can be backed up for a longer period of time.
Important: Selecting ‘Maximum backup time’ reserves approximately 20% of the 
battery capacity for memory backup. Once the battery is drained, the system 
RAM memory is lost and the unit must reboot.
In most real-time transaction environments, this is not a problem (it only 
takes a few seconds to boot). However, batch transaction environments, 
where data is not saved to a non-volatile memory (a microSD FLASH 
card), may need to pay particular attention to this parameter. Psion Tek-
logix does not recommend the storage of any valuable data in system RAM.
The NEO Windows CE 5.0 environment does not store any critical data in 
RAM (such as the registry or file system). 
If the user's application does not save data to RAM, Psion Teklogix recom-
mends keeping the Suspend Threshold setting as low as possible to 
maximize battery run time.