Note: FN990 Family modems contain an internal pull-up resistor on SIMIO. It is not
necessary to install an external pull-up resistor.
eSIM Interface
FN990 modems include pads for an optional embedded SIM (WLCSP package).
Customers interested in using an embedded SIM mounted on the FN990 can contact Telit
Technical Support at:
•
TS-EMEA@telit.com
•
TS-AMERICAS@telit.com
•
TS-APAC@telit.com
I2C – Inter-integrated Circuit
The FN990 Family supports an I2C interface: the table below lists the I2C signals of the
modem.
Table 36: I2C Signal
WLAN/GNSS Disable
The W_DISABLE_N signal is provided to disable the WLAN/GNSS function:
•
W_DISABLE_N
Low: Airplane mode
High or Floating: Normal operation
•
W_DISABLE2_N
Low: GNSS Disable
High or Floating: Normal operation