Psion Teklogix PX750 manual Suspend Threshold

Chapter 5: Configuration

Power Properties

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.

94Psion Teklogix NEO Hand-Held Computer User Manual