Skip to main content

Please note that u‑blox no longer supports Internet Explorer.

We recommend using the latest version of Google Chrome or Firefox.

Ok
C

LARA-R3121 module

LTE Cat 1 module based on u-blox LTE chipset with built-in GPS receiver

LARA-R3121 module is an older generation product. For new designs see:
LARA-R2 series
Single or multi-mode LTE Cat 1 modules with positioning capability
TOBY-R2 series
Multi-mode LTE Cat 1 modules with positioning capability

Connectivity, positioning, and timing solution: all in one module

  • Supports 3GPP Rel. 12 Power Saving Mode for long battery life
  • Provides position data and timing, indoors and outdoors
  • Features end-to-end trusted domain security
  • Provides signal optimization and congestion control
  • Enables easy migration from other u‑blox module form factors and technologies

Product variants

LARA-R3121

LTE Cat 1, Bands 3, 7, 20 (Europe)

Product variantsLARA-R3121
GNSS features 
GNSSGPS / QZSS
GPS-only
Area 
EMEA
Cellular features 
LTE bands3, 7, 20
Data ratesCat 1 (10 Mbit/s DL, 5 Mbit/s UL)
Positioning (for CEL products)AssistNow, CellLocate, eCall / ERA-GLONASS, GNSS via Modem
Interfaces 
UART1
USB1
DDC (I2C compliant)1
HSIC1
SDIO1
GPIO10
Electrical data 
Minimum supply [V]3.00
Maximum supply [V]4.5
Environmental data, quality & reliability 
Maximum temperature [°C]85
Minimum temperature [°C]-40
Size [mm]24 x 26 x 2.6
Features 
Power save mode, rel.12
FW update via serial interface
Jamming detection
Rx diversity
Secure boot
Antenna supervisor
Embedded TLS 1.2
FOTA according to CTCC/CMCC
Embedded TCP/UDP
Dual stack IPv4/IPv6
Embedded FTP/HTTP/SMTP
Other 
MarketsAutomotive & Transport, Industry, Wearables, Smart Cities, Healthcare, Retail, Infrastructure, Smart Home & Buildings