NANO-S100 - RPMA module

The u-blox NANO-S100 module is the first generation of u-blox RPMA® modules and is ideal for multiple applications across urban, suburban, below ground, and indoor environments, all on a single network.

The u-blox NANO-S100 module is the first generation of u-blox RPMA® modules. The LGA form factor and the industry standard 7-wire Serial Peripheral Interface (SPI) allow for easy integration with various host processors. With -133 dBm sensitivity and with its secured design (meeting NERC CIP and industry mandated critical infrastructure requirements), the NANO-S100 module is ideal for applications across urban, suburban, below ground, and indoor environments, all on a single network.

Furthermore NANO-S100 offers unique advantages, such as a separate FOTA broadcast channel that can rapidly provide critical updates to millions of devices at the same time. The NANO-S100 module, with only 50 µW (typ.) power consumption in sleep mode, is designed for ultra-low power performance with more than 10 years of battery life. The end-to-end secure design ensures secure and confidential data transport, as well as secure authenticated device firmware upgrades.

RPMA (Random Phase Multiple Access) technology makes possible a wireless network that 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 band, the RPMA network features demonstrated 177 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:

  • Ultra low power consumption yielding 10+ years battery life
  • Robust and reliable operation with QoS
  • Autonomous adaptation optimizes real world interference
  • Secure design that is NERC CIP compliant
  • Separate broadcast channel for rapid FOTA updates
  • Excellent extended range in buildings and underground
  • Global coverage with a single SKU

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 +23dBm
Receive sensitivity -133dBm
Data throughput 100kB per day
Maximum allowable path loss 177dB (FCC/IC)
Electrical data
Power supply 2.2 to 5.5V (3.3V typ.)
Power consumption

Power off: 0.1µA (typ.)

Deep sleep mode: 15µA (typ.)

Idle mode: 15mA (typ.)

Active mode Rx: 85mA (typ.)

Active mode Tx: 245mA (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



33 x 23 x 3mm


30-pin LGA

Environmental data, quality & reliability

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

FCC, IC, RED and additional countries as deployed (pending)


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

Part No. Description Pack Size
u-blox NANO-S100 RPMA module, 2.4GHz
Trays of 24 modules
EVK-S10NANO u-blox development kit for NANO-S100 Each

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Last updated: 5 September 2017