ThingMagic M5e-Compact - Manual (Page 40)

Power Management
40 Functionality of the Embedded Modules
Power Management
The modules use different methods and levels of power management.
Power Modes
The M5e and M5e-Compact were designed for power efficiency and offer several
different power management modes. The following lists the current modes being offered:
Full Power Mode – In this mode, the unit operates at full power to attain the best
performance possible. This mode is only intended for use in cases where power
consumption is not an issue. This is the default Power Mode at startup.
Minimal Saving Mode – This automatically executes basic power savings that do not
severely degrade system performance May result in a nominal 1 ms additional delay
on the M5e and 10 ms of delay on the M5e-Compact.
Medium Saving Mode – This mode may add up to 50 ms of delay on both the M5e
and the M5e-Compact between commands. It performs more aggressive power
savings, such as automatically shutting down the analog section between serial
commands, and then restarting it whenever a tag command is issued.
Maximum Saving Mode – This mode essentially shuts down the digital and analog
boards, except to power the bare minimum logic required to wake the processor. It
can take up to 150 ms on the M5e and up to 100 ms on the M5e-Compact to wake
the processor and execute the desired command.
Note
Maximum Saving Mode only supports communications at 9600 baud
Transmit Modes
The Transmit Modes (set through the Set Reader Configuration(9Ah) command) options
apply only to the M5e.
High Performance Mode
This mode maximizes performance without regard to thermal characteristics or power
consumption. High performance mode consumes up to 7.5W (6.5 typical) of DC power at
any RF setting. The is the default setting on the M5e.