SARA-G3 and SARA-U2 series - System Integration Manual
UBX-13000995 - R26 Appendix
Page 197 of 217
Check serial interface requirements: SARA-G3 modules provide UART interface for AT command, data
communication, mux functionality, FOAT and provide auxiliary UART interface for AT command
50
, GNSS
tunneling
50
, FW upgrade using the u-blox EasyFlash tool and for diagnostic purposes.
Check analog audio requirements: SARA-G340 and SARA-G350 modules do not provide DC blocking
capacitors at the MIC_P / MIC_N input pins and provide supply output and local ground for an external
microphone at the MIC_BIAS / MIC_GND pins.
Check digital audio requirements: SARA-G340 and SARA-G350 modules provide a 4-wire 1.8 V
interface supporting PCM and Normal I2S modes, master role and fixed sample rate.
Check internal active pull-up / down values at digital interface input pins and the current capability of
digital interface output pins, since they are slightly different between SARA-G3 and LISA modules.
Check SARA-G3 modules software requirements
Not all of the functionalities available with LISA modules are supported by all the SARA-G3 modules
versions. SARA-G300 and SARA-G310 modules do not support:
o Audio interfaces, DDC (I
2
C) interface, Antenna detection interface, GPIOs
o Low power idle mode, if a 32 kHz signal at EXT32K input pin is not provided
o TCP/IP, UDP/IP, FTP, HTTP
o GNSS via Modem, AssistNow clients, Hybrid positioning and CellLocate
®
functionalities
o Jamming detection
50
SARA-G3 modules product versions “00” and “01” do not support AT command mode and GNSS tunneling over the Auxiliary UART.
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