Psion Teklogix 7535 G2 Manual de usuario descargar pdf (Pagina 151)

Chapter 5: Configuration

Power Management Properties

Psion Teklogix 7535 G2 Hand-Held Computer User Manual 121

The Estimated Battery Backup is the amount of battery power that has been reserved or set

aside to protect data until a charged battery can be installed in the 7535 G2. When the

battery capacity is depleted up to the Estimated Battery Backup reserve specified in the

Suspend Threshold menu, the 7535 G2 shuts off automatically and uses the reserve power to

preserve the data stored on the computer. Once the 7535 G2 shuts down, it cannot be

switched on until a fresh battery is installed, or the unit is inserted in a docking station

or cradle.

•Slide the Suspend Threshold button to the right to increase the battery capacity

reserved for backup purposes. Data will be preserved to a maximum of 124 hours.

•Slide the Suspend Threshold button to the left to decrease the power reserved for

backup purposes; this increases the 7535 G2 operating time—the amount of time the

unit will operate before shutting down—but reduces the power reserved for backup pur-

poses to a minimum of 24 hours.

Internal super-capacitors will protect the data stored in the 7535 G2 while the battery is

swapped for a fully charged one.

Important: Selecting Maximum backup time will reserve approximately 20% of the

battery capacity for memory backup. Once the battery is drained, the system

RAM memory is lost and the unit must cold boot.

In most real-time transaction environments this is not a problem (it only

takes a few seconds to cold boot). Batch transaction environments, where

data is not saved to a non-volatile memory (such as an SD FLASH card),

may need to pay particular attention to this parameter. Psion Teklogix does

not recommend the storage of any valuable data in system RAM.

The 7535 G2 Windows CE 5.0 environment does not store any critical data

in RAM (such as the registry or file system).

If your application does not save data to RAM, Psion Teklogix recommends

keeping the Suspend Threshold setting as low as possible to maximize

battery run time.

Important: Once the battery is removed, the super-capacitors will preserve the data

stored on the 7535 G2 for approximately 5 minutes. It is critical that you

install a charged battery before this time elapses.

1 2 ... 146 147 148 149 150 151 152 153 154 155 156 ... 371 372

Sin comentarios

Psion Teklogix 7535 G2 Manual de usuario Pagina 151