SARA-S200 - Size and power optimised RPMA module for the Machine Network™

The u-blox SARA-S200 module is the second generation of u-blox RPMA® modules for the Machine Network™

The u-blox SARA-S200 module is the second generation of u-blox RPMA® modules for the Machine Network™. The LGA form factor and the industry standard 7-wire Serial Peripheral Interface (SPI) allow for easy integration with various host processors.

SARA-S200 provides an easy migration between other u-blox form factors and cellular technologies thanks to nested design. Its low power design (50 µW average power consumption in sleep mode) means it can operate for 10 years or longer with a single battery. With -133 dBm sensitivity and with its secured design (meeting NERC CIP and industry mandated critical infrastructure requirements), the SARA-S200 module can service multiple applications across urban, suburban, below ground, and indoor environments, all on a single network. Another unique advantage is its separate FOTA broadcast channel that can rapidly provide critical updates to millions of devices at the same time.

The end-to-end secure design ensures confidential data transport, as well as secure authenticated device firmware upgrades.

RPMA (Random Phase Multiple Access) technology represents a breakthrough in wide-area communications for IoT and M2M applications. An RPMA network can cover thousands of miles (each Access Point can support 64 k devices), encompassing entire cities or countries while supporting millions of sensors. Operating in the unlicensed 2.4 GHz ISM (Industrial, Scientific and Medical) band, the Machine Network™ features demonstrated 176 dB of link budget (FCC/IC) for superior connectivity delivering unprecedented range, capacity, robustness and low power consumption, even in the most demanding of environments.

The RPMA network includes:

  • Access Points communicating in a simple star topology with RPMA-enabled devices.
  • Back office software enabling network management and field area data visualization.
  • Device and back office integration enabled via industry standard interfaces.

Key features:

  • Easy migration between u‑blox 2G, 3G and 4G modules
  • Ultra low power consumption yielding 10+ years battery life
  • Supports QoS and NERC CIP compliant secure design
  • Autonomous adaptation optimizes real world interference
  • Separate broadcast channel for rapid FOTA updates

For sales and technical development support from our in-house engineering team, please contact the Alpha Micro team.

Parameters Specifications
Wireless frequency 2.4GHz ISM
Radio spectrum


Occupied bandwidth



Dynamic-Direct Sequence Spread Spectrum (D-DSSS)

Multiple Access Scheme

Random Phase Multiple Access (RPMA®)

Transmit power +22dBm
Receive sensitivity -133dBm
Data throughput 100kB per day
Link budget 176dB (FCC/IC)
Electrical data
Power supply

VCC_VBAT: 2.2 - 5.5V

VCC_3V3: 3.2V - 3.4V (3.3V typ.)

Power consumption

Power off: 0.1µA (typ.)

Deep sleep mode: 19µA (typ.)

Idle mode: 22mA (typ.)

Active mode Rx: 107mA (typ.)

Active mode Tx: 370mA (typ.)

Software features

Separate broadcast channel for module FW update over the air. Possibility to also update the application FW.

Host interface

7-wire SPI that includes handshaking for deep sleep modes



26 x 16 x 2.4mm


96-pin LGA

Weight <3g

Environmental data, quality & reliability

Operating temperature -40°C to +85°C
Certifications and approvals
Type approvals

FCC, ISED (formerly known as IC), RED (formerly known as R&TTE), and additional countries as deployed (pending)


Click here for the u-blox cellular modules line card.

Part No. Description Pack Size
u-blox SARA-S200 RPMA module, 2.4GHz
Reels of 250 modules
EVK-S200 u-blox development kit for SARA-S200 Each

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Last updated: 5 September 2017