Telegesis EM35X2 User Manual

Telegesis TG-ETRX35X-LR-PM-011-101

ETRX351-LR AND ETRX357-LR

ETRX35x-LR ZIGBEE

Preliminary Product Manual

MODULES

PRODUCT MANUAL

ETRX351-LR AND ETRX357-LR

Table of Contents

INTRODUCTION................................................................................................................... 5

1.1 Hardware Description ........................................................................................................ 5

2 PRODUCT APPROVALS.....................................................................................................6

2.1 FCC Approvals...................................................................................................................6

2.1.1 FCC Labelling Requirements............................................................................................. 6

2.2 European Certification ....................................................... Error! Bookmark not defined.

2.3 Declarations of Conformity................................................. Error! Bookmark not defined.

2.4 IEEE 802.15.4.................................................................................................................... 6

2.5 The ZigBee® Protocol ....................................................................................................... 6

3 MODULE PINOUT................................................................................................................ 8

4 HARDWARE DESCRIPTION ............................................................................................. 10

4.1 Hardware Interface .......................................................................................................... 10

5 FIRMWARE DESCRIPTION............................................................................................... 11

5.1 Custom Firmware............................................................................................................. 11

5.2 Software Interface............................................................................................................ 12

6 ABSOLUTE MAXIMUM RATINGS..................................................................................... 13

7 RECOMMENDED OPERATING CONDITIONS ................................................................. 13

8 DC ELECTRICAL CHARACTERISTICS............................................................................ 14

9 DIGITAL I/O SPECIFICATIONS......................................................................................... 15

10 A/D CONVERTER CHARACTERISTICS........................................................................... 16

11 AC ELECTRICAL CHARACTERISTICS............................................................................ 16

11.1 TX Power Characteristics ................................................................................................ 18

12 PHYSICAL DIMENSIONS .................................................................................................. 19

13 SOLDERING TEMPERATURE TIME PROFILE (FOR REFLOW SOLDERING) .............. 20

13.1 For Leaded Solder ........................................................................................................... 20

13.2 For Lead-free Solder........................................................................................................ 20

14 PRODUCT LABEL DRAWING........................................................................................... 21

15 RECOMMENDED FOOTPRINT ......................................................................................... 22

15.1 Example carrier board...................................................................................................... 23

16 RELIABILITY TESTS ......................................................................................................... 24

17 APPLICATION NOTES ...................................................................................................... 24

17.1 Safety Precautions........................................................................................................... 24

17.2 Design Engineering Notes ............................................................................................... 24

17.3 Storage Conditions .......................................................................................................... 25

ETRX351-LR AND ETRX357-LR

18 PACKAGING ...................................................................................................................... 25

18.1 Embossed Tape............................................................................................................... 25

18.2 Component Orientation.................................................................................................... 26

18.3 Reel Dimensions.............................................................................................................. 26

18.4 Packaging ........................................................................................................................ 26

19 ORDERING INFORMATION .............................................................................................. 27

20 TRADEMARKS................................................................................................................... 28

21 DISCLAIMER......................................................................................................................28

22 ROHS DECLARATION....................................................................................................... 28

23 DATA SHEET STATUS...................................................................................................... 28

24 LIFE SUPPORT POLICY.................................................................................................... 28

25 RELATED DOCUMENTS................................................................................................... 29

26 CONTACT INFORMATION ................................................................................................ 29

ETRX351-LR AND ETRX357-LR

Image not shown actual size; enlarged to show detail.

Module Features

• Small form factor, SMT module 25mm x 19mm

• Side Castellations for easy soldering and inspection

• 2 antenna options: Integrated chip antenna or U.FL

coaxial connector

• Industry’s first ARM® Cortex-M3 based family of ZigBee modules

• Industry standard JTAG Programming and real time network level debugging via the Ember InSight Port

• 192kB (ETRX357) and 128kB (ETRX351) flash and 12kbytes of RAM

• Lowest Deep Sleep Current of sub 1µA and multiple sleep modes

• Wide supply voltage range (2.1 to 3.5V)

• 32.768kHz watch crystal can be added externally

• Module ships with standard Telegesis AT-style

command interface based on the ZigBee PRO feature set

• Can act as an End Device, Router or Coordinator

• 24 general-purpose I/O lines including analogue inputs

(all GPIOs of the EM35x are accessible)

• Firmware upgrades via serial port or over the air (password protected)

• Hardware supported encryption (AES-128)

• CE and FCC compliance, FCC modular approval

pending

• Operating temperature range: -40

• Standard version without LNA and PA available in the

same form factor

Radio Features

• Based on the Ember EM351 and EM357 single chip

• 2.4GHz ISM Band

• 250kbit/s over the air data rate

• 16 channels (IEEE802.15.4 Channel 11 to 26)

• +18dBm output power (adjustable down to -21dBm)

• High sensitivity of -105dBm typ. @ 1% packet error rate

• RX Current: 28mA, TX Current: approx 100mA at

• Robust Wi-Fi and Bluetooth coexistence

ZigBee

18dBm

/ IEEE802.15.4 solutions

C to +85°C

The Telegesis ETRX351-LR and ETRX357-LR modules are low power 2.4GHz ZigBee modules with an added PA and LNA for highest possible link budget.

Based on the latest Ember EM351 and EM357 single chip

ZigBeeTM solution the new long range modules are footprint

compatible with the ETRX351 and ETRX357, thus representing a drop-in replacement for all applications where a high link budget is required.

The module’s unique AT-style command line interface allows designers to quickly integrate ZigBee technology without complex software engineering. For custom application development the ETRX35x series integrates with ease into Ember’s InSi

Suggested Applications

• AMR – ZigBee Smart Energy applications

• Wireless Alarms and Security

• Home/Building Automation

• Wireless Sensor Networks

• M2M Industrial Controls

• Lighting and ventilation control

• Remote monitoring

• Environmental monitoring and control

Development Kit

• New Development kit containing everything required to set up a mesh network quickly and evaluate range and performance of the ETRX35x and its long range version.

• AT-style software interface command dictionary can be modified for high volume customers.

• Custom software development available upon request.

ht development environment.

Example AT-Style Commands

AT+BCAST Send a Broadcast AT+UCAST:<address> Send a Unicast AT+EN Establish PAN network AT+JN Join PAN

At power-up the last configuration is loaded from non volatile S-Registers, which can eliminate the need for an additional host controller.

ETRX351-LR AND ETRX357-LR

1 Introduction

This document describes the Telegesis ETRX351-LR and ETRX357-LR ZigBee® long range modules which have been designed to be easily integrated into another device and to provide a fast, simple and low cost wireless mesh networking interface.

The Telegesis ETRX3 series modules are based on the Ember ZigBee® platform consisting of the single chip EM351 or EM357 combined with the ZigBee PRO compliant EmberZNet meshing stack. Integration into a wide range of applications is made easy using a simple AT style command interface and advanced hardware design.

The configurable functionality of the Telegesis AT Commandset often allows the ETRX3 series ZigBee modules to be used without an additional host microcontroller saving even more integration time and costs. In addition to the Telegesis AT Commandset, the ETRX351-LR and ETRX357-LR modules can be used with custom-built firmware and they represent an ideal platform for custom firmware development in conjunction with the Ember development kits. The ETRX3 series shares the same R3xx Telegesis firmware as the ETRX2 and the two devices can be used in the same network.

No RF experience or expertise is required to add this powerful wireless networking capability to your products. The ETRX351-LR and ETRX357-LR offer fast integration opportunities and the shortest possible time to market for your product.

1.1 Hardware Description

The main building blocks of the ETRX351-LR and ETRX357-LR are the single chip EM351 and EM357 from Ember, a Power Amplifier as well as a Low Noise Amplifier, a 24MHz reference crystal and RF front-end circuitry optimized for best RF performance. The modules are available with on-board antenna or alternatively a U.FL connector for attaching external antennae. Modules with the U.FL connector are identified by the “HR” suffix.

The LNA and RF power amplifier of the LR devices improve the output power by 10dB and the sensitivity by 5dB which will increase the range by approximately 600% relative to the standard devices (where local regulations permit the use of the maximum output power).

The integrated antenna is an Antenova Rufa, and details of the radiation pattern etc are available from the Antenova website

Module Chip Flash RAM

ETRX351-LR EM351 128kB 12kB ETRX351HR-LR EM351 128kB 12kB ETRX357-LR EM357 192kB 12kB ETRX357HR-LR EM357 192kB 12kB

The ETRX351-LR and ETRX357-LR are used for ZigBee® (www.zigbee.org) applications. If you wish to create your own custom firmware, and not use the pre-loaded Telegesis AT-Command interface, you will need the InSight toolchain, consisting of InSight Desktop™ together with a comprehensive integrated development environment (IDE) and C-language compiler toolchain from Ember. The Ember development environment is not suitable for an 802.15.4-only application that does not use the ZigBee layer.

[5].

Table 1: Memories

ETRX351-LR AND ETRX357-LR

2 Product Approvals

The ETRX351-LR and ETRX357-LR have been designed to meet all national regulations for worldwide use. In particular the following certifications have been obtained:

2.1 FCC Approvals

The Telegesis ETRX351-LR and ETRX357-LR with integrated Antenna has been tested to comply with FCC CFR Part 15 (USA). The devices meet the requirements for modular transmitter approval as detailed in the FCC public notice DA00.1407.transmitter.

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

FCC ID: S4GEM35X2

While the applicant for a device into which the ETRX351-LR or ETRX357-LR or ETRX351HR-LR is installed is not required to obtain a new authorization for the module, this does not preclude the possibility that some other form of authorization or testing may be required for the end product.

The FCC requires the user to be notified that any changes or modifications made to this device that are not expressly approved by Telegesis (UK) Ltd. may void the user's authority to operate the equipment.

2.2 FCC Labelling Requirements

When integrating the ETRX351-LR or ETRX357-LR into a product if must be ensured that the FCC labelling requirements are met. This includes a clearly visible label on the outside of the finished

product specifying the Telegesis FCC identifier (FCC ID: S4GEM35X2) as well as the notice above. This exterior label can use wording such as “Contains Transmitter Module FCC ID: S4GEM35X2” or “Contains FCC ID: S4GEM35X2” although any similar wording that expresses the same meaning may be used.

2.3 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.

2.4 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.

ETRX351-LR AND ETRX357-LR

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 introduced the PRO featureset which offers advantages over earlier versions, including

• 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

The Telegesis AT Commandset, which by default ships on all ETRX3 series products is based on the ZigBee PRO featureset. For more information on the Telegesis AT Commandset please refer to the separate documentation at www.telegesis.com.

ETRX351-LR AND ETRX357-LR

3 Module Pinout

Figure 1: ETRX3 series Module Pinout (top view)

The table below gives details about the pin assignment for direct SMD soldering of the ETRX3 series modules to the application board. For more information on the alternate functions please refer to [2]. Also refer to the Telegesis AT Commandset documentation to understand how the preprogrammed firmware makes use of the individual I/Os.

All GND pads are connected within the module, but for best RF performance all of them should be grounded externally.

ETRX35x

pad

1 GND GND GND 2 PC5 {1} I/O 11 TX_ACTIVE 3 PC6 I/O 13 OSC32B, nTX_ACTIVE 4 PC7 I/O 14 OSC32A, OSC32_EXT 5 PA7 {4} I/O 18 TIM1C4 6 PB3 {2} I/O CTS 19 SC1nCTS, SC1SCLK, TIM2C3 7 nReset nReset 12 8 PB4 {2} I/O RTS 20 TIM2C4, SC1nRTS, SC1nSSEL 9 PA0 I/O 21 TIM2C1, SC2MOSI 10 PA1 I/O 22 TIM2C3, SC2SDA, SC2MISO 11 PA2 I/O 24 TIM2C4, SC2SCL, SC2SCLK 12 PA3 I/O 25 SC2nSSEL, TRACECLK, TIM2C2 13 GND GND GND 14 PA4 I/O 26 ADC4, PTI_EN, TRACEDATA 15 PA5 {3} I/O 27 ADC5, PTI_DATA, nBOOTMODE, TRACEDATA3 16 PA6 {4} I/O 29 TIM1C3 17 PB1 TXD 30 SC1MISO, SC1MOSI, SC1SDA, SC1TXD, TIM2C1 18 PB2 RXD 31 SC1MISO, SC1MOSI, SC1SCL, SC1RXD, TIM2C2 19 GND GND GND 20 GND GND GND 21 JTCK JTCK 32 SWCLK

Designation Normal

function

Alternate

function

EM35x

Ember designation

ETRX351-LR AND ETRX357-LR

ETRX35x

pad

22 PC2 I/O 33 JTDO, SWO 23 PC3 I/O 34 JTDI 24 PC4 I/O 35 JTMS, SWDIO 25 PB0 I/O 36 VREF, IRQA, TRACECLK, TIM1CLK, TIM2MSK 26 PC1 I/O ADC3 38 ADC3, SWO, TRACEDATA0 27 PC0 {4} I/O 40 JRST, IRQD, TRACEDATA1 28 PB7 {4} I/O ADC2 41 ADC2, IRQC, TIM1C2 29 PB6 {4} I/O ADC1 42 ADC1, IRQB, TIM1C1 30 PB5 I/O ADC0 43 ADC0, TIM2CLK, TIM1MSK 31 GND GND GND 32 Vcc Vcc Vcc 33 GND GND GND

Designation Normal

function

Alternate

function

Table 2. Pin Information

EM35x

Ember designation

Alternate functions depend on the firmware, but the R3xx functions are indicated here for convenience.

Notes:

{1} PC5 is not usable on these long range versions of the ETRX35x as this GPIO is used as

TX_ACTIVE to control the external RF frontend.

{2} When using the Telegesis AT Commandset, RTS/CTS handshaking is selectable in firmware. See

the AT Command Manual.

{3} If PA5 is driven low at power-up or reset the module will boot up in the bootloader {4} PA6, PA7, PB6, PB7 and PC0 can drive high current (see section 9)

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Telegesis EM35X2 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual