SARA-G3 and SARA-U2 series - System Integration Manual 
UBX-13000995 - R26    System description 
    Page 11 of 217 
Table 1 describes a summary of interfaces and features provided by SARA-G3 and SARA-U2 series modules. 
 
● = supported by all product versions  
○ = supported by product version “01” onwards 
■ = 32 kHz signal at EXT32K input is required for low power idle mode 
□ = supported by product versions “02” onwards 
Table 1: SARA-G3 and SARA-U2 series
3
 features summary 
  
1
 Secondary UART and FOTA not supported by "03" and "63" product versions 
2
 SARA-U270-73S  module  product  version  (approved  by  SKT  Korean  network  operator)  and  SARA-U270-53S  module  product  version 
2
 SARA-U270-73S  module  product  version  (approved  by  SKT  Korean  network  operator)  and  SARA-U270-53S  module  product  version 
(approved by KT Korean network operator) do not support 2G radio access technology. 
3
 SARA-G350 ATEX modules provide the same feature set of the SARA-G350 modules plus the certification for use in potentially explosive 
atmospheres; the same applies to SARA-U201 ATEX and SARA-U201 modules, and to SARA-U270 ATEX and SARA-U270 modules. Unless 
otherwise specified, SARA-G350 refers to all SARA-G350 ATEX and  SARA-G350 modules; SARA-U201 refers  to all  SARA-U201  ATEX  and 
SARA-U201 modules; whereas SARA-U270 refers to all SARA-U270 ATEX modules and SARA-U270 modules.