USB Accelerometer Model X16-1C
3.2.4.12 timeoutonusb
The “timeoutonusb” tag returns the microprocessor to normal operating speed if no USB
communications are detected within 7 seconds after connection to a USB port. This reduces the power
requirements when operated from an external 5v USB supply. By default, the microprocessor
continues at high-speed mode waiting for USB communications. Utilize the timeoutonusb feature
when operating the device from an external 5v USB battery pack.
3.2.4.13 Example Configuration Files
Example A) The following configuration records data constantly at 25 hertz. The device will boot and
begin logging data once removed from a computer USB port. Each data file is 30,000 lines long or
about 25 minutes.
Figure 6: Configuration File Example A
Example B) Setting the deadband to 50 counts causes the device to record only changes greater than
0.05g. The deadbandtimeout setting forces a sample write every 60 seconds. Status indicators will
turn off about 10 seconds after the device turns on.
Figure 7: Configuration File Example B
January 2012 Rev New
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