CipherLab CP30 Reference Manual page 72

CP30 Mobile Computer
Auto Mode: Switches between the two modes described above, depending on network traffic. This
mode switches to Always On mode when retrieving a large number of packets and switches back
to Max. Saving mode after the packets have been retrieved.
It is recommended when power consumption is a concern but you need greater throughput than
that allowed by Max. Saving mode.
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Reference Manual