Integration Manual

SARA-R5 series - System integration manual
UBX-19041356 - R03 Product testing Page 107 of 123
Confidential
The SARA modules are also form-factor compatible with the u-blox LARA, LISA and TOBY cellular
module families: although each has a different form factor, the footprints for the TOBY, LISA, LARA
and SARA modules have been developed to ensure layout compatibility.
With the u-blox “nested design” solution, any TOBY, LISA, LARA or SARA module can be alternatively
mounted on the same space of a single “nested” application board as described in Figure 73.
Guidelines to implement a nested application board, description of the u-blox reference nested design
and comparison between TOBY, LISA, LARA and SARA modules are provided in the nested design
application note [21].
Figure 73: Cellular modules’ layout compatibility: all modules can be mounted on the same nested footprint
Table 40 summarizes the main interfaces provided by SARA modules:
Modules
RF
Power
System
SIM
Serial
Audio
Other
LTE Cat M1
LTE Cat NB1
LTE Cat NB2
2G
3G
Integrated GNSS receiver
RTC supply I/O
V_INT supply at 1.8V
V_INT supply configurable
Switch
-on input pin
Switch
-off input pin
Reset input pin
SIM interface
SIM detection
UART
UART AUX
USB
SPI
SDIO
DDC (I
2
C)
Analog audio
Digital audio
13/26 MHz output
GPIOs
Network indication
Antenna detection
External GNSS control
SARA-R41x
●
●
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SARA-R42x
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●
●
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●
●
●
●
●
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●
○
○
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SARA-R5xx
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○
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○
○
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○
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SARA-N2xx
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SARA-N3xx
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●
○
○
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●
SARA-G3xx
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SARA-G4xx
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○
○
○
○
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○
SARA-U2xx
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● = supported by available product version ○ = supported by future product versions
Table 40: Summary of the main interfaces in SARA modules
TOBY-L2