LARA-R2 Series - Size-optimised LTE Cat 1 modules in single and multi-mode configurations

u-blox LARA-R2 series of single mode LTE modem modules, low data rates, Voice over LTE (VoLTE)modules.

LARA-R2 series modules support multi-band LTE-FDD in a very small LGA package. There are two variants, one with fallback to 2G and one LTE-only variant.

LARA-R211, with fallback to GPRS/EDGE (2G), is ideal for applications that are transitioning to LTE from 2G, due to the long term availability and scalability of LTE networks.

With a range of interface options and an integrated IP stack, the modules are designed to support a wide range of datacentric applications. The unique combination of performance, security and flexibility make these modules ideally suited for medium speed M2M applications, such as smart energy gateways, remote access video cameras, digital signage, telehealth and telematics.

LARA-R2 modules support Voice over LTE (VoLTE) or CSFB voice service for applications that require voice, such as security and surveillance systems.

The temperature range of -40 to +85 ° C guarantees operation in harsh environments and in very compact designs.

The ultra-compact LGA package enables straightforward automated manufacturing. The LARA form factor follows the u-blox nested design principle and is compatible with u-blox SARA, LISA and TOBY module families. This facilitates easy migration from u-blox GSM/GPRS, CDMA, UMTS/HSPA, and multi-mode LTE modules, maximizes the investments of customers, simplifies logistics, and enables very short time-to-market.

LARA-R2 modules are manufactured in ISO/TS 16949 certified sites, with the highest production standards and the highest quality and reliability. Each module is fully tested and inspected during production. Modules are qualified according to ISO16750 - for systems installed in vehicles.

LARA-R2 modules come in variants for America and Europe. USB drivers and RIL software for Android are free of charge.


  • LTE modem in very small, compact LGA package
  • LTE Cat 1, one variant with fallback to 2G
  • Voice over LTE (VoLTE) or CSFB voice service
  • Variants for America and Europe
  • Full IP Stack embedded

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

Parameters Specifications

Cat 1 (10 Mb/s DL, 5 Mb/s UL)

3GPP Release 9

FDD bands:

LARA-R204: 4, 13 (N. America)

LARA-R211: 3, 7, 20 (Europe)

All channel bandwidths: 1.4 - 20 MHz

Rx Diversity


GPRS/EDGE multi-slot class 12

Bands (in MHz):

LARA-R211: E-GSM 900 / DCS 1800


MT/MO PDU/Text mode

SMS over IMS and via SMS-C




Echo cancellation & noise reduction

Software features

Dual stack IPv4 / IPv6

Embedded TCP/IP, UDP/IP

HTTP/FTP/SSL (Secure Socket Layer)

Bearer Independent Protocol (BIP)

GNSS interfaces¹

Direct access to u-blox GNSS via LARA

AssistNow software for fastest GNSS Time-To-First-Fix

CellLocate® & Hybrid Positioning

Firmware update

Via UART and USB

FOTA client (Firmware upgrade over the air)



1 USB 2.0 (high-speed, 480 Mb/s)


1 I²C



Up to 10 GPIO's, configurable

(U)SIM Supports 1.8 V and 3 V, SIM toolkit

1 digital

Electrical data
Power supply 3.8 V nominal, range 3.3 V to 4.4 V
Transport Layer Security (TLS 1.2)
Jamming Detection¹
Certifications & approvals
LARA-R204 PTCRB, GCF, FCC, IC, Verizon
Environmental data, quality & reliability
Operating temperature -40°C to +85ºC (extended range)
RoHS compliant (lead-free)
Qualification according to ISO 16750
Manufactured in ISO/TS 16949 certified production sites



100 pin LGA (Land Grid Array): 24.0 x 26.0 x 2.6 mm, < 5 g

¹ Available in future FW release


Click here for the u-blox cellular modules linecard.

Part Number Description Pack Size
LARA-R202 LTE Cat 1 modules for AT&T with 3G fallback; LTE Bands 2, 4, 5, 12 Reel of 150
LARA-R203 LTE Cat 1 modules for AT&T. LTE Bands 2, 4, 12 Reel of 150

LTE Cat 1 modules for Verizon Wireless; LTE Bands 4, 13

Reel of 150

LTE Cat 1 modules for Europe with 2G fallback; LTE Bands 3, 7, 20

Reel of 150
EVK-R2x Evaluation Kits for TOBY-R2 and LARA-R2 series
RIL software Available for Android 4.2 and Embedded Windows 7.x Each
USB driver Available for Windows 7, 8, 10 and for Embedded Windows 7.x, 8.x, 10.x Each

Related Products

Recently Viewed Products

Last updated: 17 November 2017