XDM2140 2.4 GHz Mesh RF Module Ultra Low Power, Ultra Reliable Wireless Sensor Networking

Ultra Low Power Consumption

Innovative radio design consumes 80% less power in receive mode
than competing solutions

Ultra-efficient power usage delivers over a decade of network
operation on two AA batteries

Automatic network-wide coordination for efficient power usage

Ultra Reliable Networking

SmartMesh-XD protocol delivers greater than 99.9% typical network
reliability

Frequency hopping provides interference rejection and minimizes multipath fading

Mesh networking provides built-in redundancy

Every XDM2140 acts as both an endpoint and a router, increasing network reliability with mesh-to-the edge�

Automatic self-organizing mesh networking capability built in

Ultra Easy Integration

Provides all the module functionality with no embedded programming or complex configuration required

Interfaces is well designed and multi-functional

High-level Data Link Control (HDLC) serial interface includes bi-directional flow control

Industrial temperature range -40 to +85 �C

XDM2140P version for plug in installation, XDM2140C version for solder reflow

Electrical Characteristics

Absolute Maxium Ratings

Parameter	Min	Typ	Max	Units	Comments
Supply Voltage (VDD to VSS)	-0.3		5.5	V
Voltage on any digital I/O pin	-0.3		3.6	V	Input power at antenna connector
Storage temperature range	-40		+85	�C
VSWR of antenna			3:1
ESD protection
Antenna pad			�250	V	HBM
All other pads			�2	kV	HBM
			�200	V	CDM
* All voltages are referenced to VSS

Normal Operating Conditions

Parameter	Min	Typ	Max	Units	Comments
Operational supply voltage range (between VDD and VSS)	3.3	3.6	5.5	V	Including noise and load regulation
Voltage supply noise			100	mVp-p	50 Hz to 2 MHz
Operating temperature range	-40		+85	�C
Maximum allowed ambient temperature ramp during operation			8	�C/min	-40 �C to +85 �C
Operating relative humidity	10		90	% RH	Non-condensing

Current Consumption

Parameter	Min	Typ	Max	Units	Comments
Transmit		18		mA
Receive		6		mA
Sleep		8.5		�A

Radio Specifications

Parameter	Min	Typ	Max	Units	Comments
Operating frequency	2.4000		2.4835	GHz
Number of channels		15
Channel separation		5		MHz
Occupied bandwidth		2.7		MHz	at -20 dBc
Frequency accuracy	-50		+50	kHz
Modulation					IEEE 802.15.4 DSSS
Raw data rate		250		kb/s
Receiver operating maximum input level		0		dBm
Receiver sensitivity		-92.5		dBm	At 50% PER, VDD=3V, 25�C
		-90		dBm	At 1% PER, VDD=3V, 25�C, (inferred from 50% PER measurement)
Output power, conducted		+8		dBm	VDD=3V, 25�C

Fast track your design -- order a Developer Kit today!

Everything you need to get a 4 node network up and running
in minutes

4 developer kit boards providing a simple means to interface
to your device

XG2400E gateway to control the network activity and
provide either Ethernet or serial connectivity

Utility programs that demonstrate network operation
and performance

Full documentation to speed integration into your product

Each Kit Contains:

4 XDM2140 modules

4 XDM2140 development boards

1 XG2400E gateway

1 Ethernet and 5 Serial cables

9V batteries and wall-mount power supplies

Antennas and RF cables

Program CD with software and manuals

Quick Start Guide

download datasheet
download brochure

RFM�s XDM2140 module is designed to provide excellent communications reliability and long battery life in a wide range of sensor network applications. The XDM2140�s combination of an IEEE802.15.4 transceiver and Time Synchronized Mesh Protocol (TSMP) blends the reliability of self-organizing and self-healing mesh networking with synchronized power duty cycling to achieve very long battery life operation.

See TSMP in Action! Flash demo explains How Time Synchronized Mesh Protocol works.
Reliable Wireless Sensor Network in the Face of Adversity
Why ultra-low power ultra-reliability is key in mission critical applications
Online Presentation

RFM�s XDM2140 the best in class among 2.4 GHz RF modules for industrial wireless sensor networking.
Compare XDM2140 to other RFM mesh and 802.15.4 products Compare XDM2140 to other RFM industrial-grade products Compare XDM2140 to RFM competitor products	Select & Compare Ready-Made RF Modules download printable pdf

RFM products are sold through a world-wide network of manufacturer's sales reps and distributors.