Table 4. Battery Id / Thermistor Configuration Dip Switch Settings - Lantronix Intrinsyc Open-Q 865XR SOM User Manual

3.7.3.1 Input Power Selection Switch S300 (2)
The S300 switch shown in the figure above is used to select the power source. To select the external DC
power supply as the power source, slide the switch towards the '12V' position. To power up the kit using
the battery, slide the switch towards the 'BATT' position. The default position is '12V'.
3.7.3.2 Battery ID and Thermistor Configuration DIP Switch S301 (4)
The 2-position DIP switch S301 shown in the figure above configures the battery ID and thermistor
settings. The table below describes the settings for the battery ID / thermistor DIP switch.

Table 4. Battery ID / Thermistor Configuration DIP Switch Settings

Function
BATTERY THERMISTOR
BATTERY ID
3.7.3.3 DC Power Input Jack J400 (1)
For a DC powered Open-Q 865XR SOM Development Kit, the DC power input jack J400 (see location in
figure above) is used to connect to the include +12V DC power supply. The 865XR carrier board includes
circuitry to convert the +12V input into different voltage rails that are needed by 865XR SOM and carrier
board peripherals.
3.7.3.4 Battery Connector J300 (3)
For a battery powered Open-Q 865XR SOM Development Kit, the battery connector J300 (see location in
figure above) is used for connection to the battery. The table below describes the pinout of the battery
connector. For more information on powering the development kit from a battery, including selecting a
battery pack, see reference document R-6.
Open-Q 865XR SOM Development Kit User Guide
DIP Description
Switch
Selects whether or not a 100K ohm
S301-1 thermistor is attached to the battery
connector J300.
Informs the 865XR SOM whether a
valid battery is connected. The setting is
S301-2
used as input to enable or disable
battery charging.
3: Open-Q 865XR SOM Development Kit
Notes
For DC powered dev kit, set switch to
closed / ON (default). This enables
the use of the 'fake' 100K thermistor
on the carrier board.
For battery powered dev kit, set
switch to open / OFF if thermistor is
included on the battery pack.
Otherwise keep switch closed / ON.
For DC power dev kit, set switch to
closed / ON (default) to disable
battery charging.
For battery power dev kit, set switch
to open / OFF to enable battery
charging.
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