Remember that the Fastrack is a DCE (a modem) so its “TX” is an input.
See: https://forum.sierrawireless.com/t/interface-between-fastrack-supreme-and-pic/3519/11
Remember that the Fastrack is a DCE (a modem) so its “TX” is an input.
See: https://forum.sierrawireless.com/t/interface-between-fastrack-supreme-and-pic/3519/11