4
3. HARDWARE OVERVIEW
On the front side of the IMU the
ON/OFF button
and an
indicator LED
are located
.
In order to
switch-on
the
device
,
press
shortly
the button. The LED lights
green.
To switch-off the IMU press and hold the button for two seconds, until the LED turns-off.
In addition, the IMU turns-off automatically after 10 minute of inactivity.
When the battery reaches a low voltage the LED starts
blinking
red
.
On the back side 4 golden contacts are present in order to allow communication with the
docking station
for battery recharging and data download.
The
Docking-station
allows the sensor to be interfaced to a PC via USB cable, for
battery recharging
and data-log file transfer.
The IMU must be properly placed in the docking station as shown in the above picture.
For battery recharging is alternatively possible to connect the docking station to a standard 5V power
supply equipped with micro-USB connector.
The current required to recharge the battery is 250 mA.
When the battery is being charged the EXLs3’s indicator LED turns
red.
When the battery is fully charged the LED turns
green.
By connecting the docking-
station to a PC it is possible to access the IMU’s internal storage flash disk, in
order to retrieve data-log files.