SARA-R4 series - System integration manual
UBX-16029218 - R20 System description Page 11 of 128
C1-Public
Figure 2 summarizes the internal architecture of SARA-R422 and SARA-R422S modules.
Figure 2: SARA-R422 and SARA-R422S modules simplified block diagram
Figure 3 summarizes the internal architecture of SARA-R422M8S modules.
Figure 3: SARA-R422M8S modules simplified block diagram
☞ SARA-R422-00B, SARA-R422S-00B and SARA-R422M8S-00B modules, i.e. the “00B” product
versions of SARA-R422, SARA-R422S and SARA-R422M8S modules, do not support the following
interfaces, which should be left unconnected and should not be driven by external devices:
o Digital audio interface
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