User's Manual
RG191-M2 Concentrator Card
Datasheet
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/wireless
3
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1 INTRODUCTION
The Sentrius™ RG191-M2 LoRaWAN Concentrator Card combines Laird’s long-standing expertise in optimized RF
design with the emerging LoRaWAN ecosystem. The Sentrius™ RG191-M2 card enables OEMs to integrate a
high-performance, certified LoRaWAN gateway interface to any Linux-based platform. Laird’s optimum
hardware solution expands upon Sentrius™ drivers and reference design for improved RF performance.
Comprehensive integration and design services for a custom gateway are also available via Laird’s dedicated
Engineering Services team and qualified LoRa antenna solutions are available from Laird.
2 OVERVIEW
The module is designed around the Sentrius™ SX1301 digital baseband chip with an integrated LoRa concentrator
IP, which is designed to perform high performance gateway function in the ISM band. The RF frontend consists
of two of SX1257, high performance digital I and Q modulator/demodulator transceiver chips. The RF front-end
is terminated with standard U.FL connector. The board form factor and connector pinout are designed to conform
to M2.COM specifications. The card requires a single 5-volt supply and it generates its power supply requirements
on-board. Standard SPI communication, reset, and power supply to the board are provided through a 75-position
host interface connector.
3 SPECIFICATION SUMMARY
Category
Feature
Specification
General Radio
Semtech Radios
SX1301 and SX1257 (x2)
Reference Design Based on Semtech Rev 1.0 - SX1301 AP1
Connectors
Connector Type
M2.COM E Key - http://www.m2com-standard.org/en-us
External Antenna
U.FL connector
Power
Consumption
TX (max) – 440 mA
RX (all channels) – 340 mA
Idle – 40 mA
Voltage Input
Input
5V (+/- 10%)
RF Characteristics
Frequency Range
RG191-M2: 902 to 928 MHz
RX Sensitivity
Up to -140 dBm
Max RF Output Power
Up to +27 dBm
Software
Host Interface
SPI
Driver Support
https://github.com/Lora-net/lora_gateway
(Laird testing done with Linux)
Temperature
Operating Range
-30°C to +85°C
Physical
Dimensions
75 x 53 x 3.8 mm
Weight
<11 g
Regulatory
Certifications
FCC/IC/CE
Warranty
12 months