ETRX2HR-PA Telegesis Ltd, ETRX2HR-PA Datasheet - Page 8

• Manufacturer Part Number: ETRX2HR-PA
• Description: MODULE
• Manufacturer: Telegesis Ltd

Specifications of ETRX2HR-PA

• Module Applications: AMR, Building Automation, Wireless Sensor Network, M2M Industrial Controls
• Mcu Supported Families: EM250
• Processor Type: EM250
• Wireless Protocol: IEEE 802.15.4
• Data Rate: 250Kbps
• Module Interface: I2C, SPI, UART
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.3 Declarations of Conformity
Telegesis (UK) Ltd has issued Declarations of Conformity for the ETRX2-PA ZigBee® RF
Modules, which cover Radio Emissions, EMC and Safety. These documents are available from
our website or on request
2.4 IEEE 802.15.4
IEEE 802.15.4 is a standard for low data rate, wireless networks (raw bit-rate within a radio packet
of 250kbps @2.4GHz) which focuses on low cost, low duty cycle, long primary battery life
applications as well as mains-powered applications. It is the basis for the open ZigBee® Protocol.
2.5 The ZigBee® Protocol
The ZigBee® Protocol is a set of standards for wireless connectivity for use between any devices
over short to medium distances. The specification was originally ratified in December 2004, paving
the way for companies to start making low-power networks a reality.
ZigBee® uses an IEEE 802.15.4 radio specification running on the 2.4GHz band, plus three
additional layers for networking, security and applications. What makes the specification unique is
its use of a mesh network architecture which, in bucket chain style, passes data from one node to
the next until it lands at its destination. The network is self-healing and adapts its routing as link
quality changes or nodes move. Furthermore, nodes can be defined as End Devices which do not
act as routers, but can therefore be put into a low-power sleep state.
The enhanced version of the ZigBee® standard (or ZigBee® 2006) was released in December
2006, adding new features and improvements to the only global wireless communication standard
enabling the development of easily deployable low-cost, low-power, monitoring and control
products for homes, commercial buildings and industrial plant monitoring. In 2007 the ZigBee
Alliance produced the very latest edition of the standard including the PRO featureset which offers
advantages over earlier versions, including
Based on this latest standard, the Telegesis R3xx firmware for ZigBee PRO allows for
Please note that the R2xx and to some extent the Telegesis AT-Command line interpreter are
based on a private application profile and use the Ember meshing and self-healing stack, so
interoperability with wireless mesh networking solutions from other manufacturers is unlikely when
using this default firmware. For more information on ZigBee® compliance and the AT command
interface please refer to the latest AT command dictionary and the ETRX2 user guide.
©2009 Telegesis (UK) Ltd
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Truly self healing mesh networking
Messages can now travel up to 30 hops
Source-Routing for improved point to multipoint message transmission
Improved security including Trust-Centre link keys
New message types and options
Support for up to 4 external interrupts and 4 analogue inputs
Nodes can be addressed by their EUI as well as their 16 bit NodeID
Some level of interoperability with 3rd party ZigBee PRO compliant nodes
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ETRX2PA Product Manual (Rev 1.07)
ETRX2PA