Silicon Laboratories Finland EM35XA ETRX35x Series Zigbee Modules User Manual TG ETRX35x PM 010 102 trac

Telegesis (UK) Ltd ETRX35x Series Zigbee Modules TG ETRX35x PM 010 102 trac

manual

Telegesis  TG-ETRX35X-PM-010-102 ETRX351 and ETRX357  Product Manual    ©2010 Telegesis (UK) Ltd    ETRX35x Product Manual       ETRX35x ZIGBEE® MODULES  PRODUCT MANUAL
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 2 -  ETRX35x Product Manual  Table of Contents  1 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 IC (Industry Canada) Approvals ....................................................................................... 7 2.3 European Certification (ETSI)........................................................................................... 7 2.4 ICASA Approvals ............................................................................................................. 8 2.5 Australia and New Zealand (C-Tick) ................................................................................. 8 2.6 Declarations of Conformity ............................................................................................... 8 2.7 IEEE 802.15.4 .................................................................................................................. 8 2.8 The ZigBee® Protocol ...................................................................................................... 8 3 MODULE PINOUT .............................................................................................................. 9 4 HARDWARE DESCRIPTION ............................................................................................ 11 4.1 Hardware Interface ......................................................................................................... 11 5 FIRMWARE DESCRIPTION ............................................................................................. 12 5.1 Custom Firmware ........................................................................................................... 12 5.2 Software Interface .......................................................................................................... 13 6 ABSOLUTE MAXIMUM RATINGS ................................................................................... 14 6.1 Environmental Characteristics ........................................................................................ 14 6.2 Recommended Operating Conditions............................................................................. 14 7 DC ELECTRICAL CHARACTERISTICS ........................................................................... 15 8 DIGITAL I/O SPECIFICATIONS ....................................................................................... 17 9 A/D CONVERTER CHARACTERISTICS .......................................................................... 18 10 AC ELECTRICAL CHARACTERISTICS ........................................................................... 18 10.1 TX Power Characteristics ............................................................................................... 20 11 PHYSICAL DIMENSIONS ................................................................................................. 22 12 SOLDERING TEMPERATURE PROFILE (FOR REFLOW SOLDERING) ........................ 23 12.1 For Leaded Solder ......................................................................................................... 23 12.2 For Lead-free Solder ...................................................................................................... 23 13 PRODUCT LABEL DRAWING ......................................................................................... 24 14 RECOMMENDED FOOTPRINT ........................................................................................ 25 14.1 Example carrier board .................................................................................................... 26 15 RELIABILITY TESTS ........................................................................................................ 27 16 APPLICATION NOTES ..................................................................................................... 27
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 3 -  ETRX35x Product Manual 16.1 Safety Precautions ......................................................................................................... 27 16.2 Design Engineering Notes .............................................................................................. 27 16.3 Storage Conditions ......................................................................................................... 28 17 PACKAGING .................................................................................................................... 28 17.1 Embossed Tape ............................................................................................................. 28 17.2 Component Orientation .................................................................................................. 29 17.3 Reel Dimensions ............................................................................................................ 29 17.4 Packaging ...................................................................................................................... 29 18 ORDERING INFORMATION ............................................................................................. 30 19 DISCLAIMER .................................................................................................................... 31 20 ROHS DECLARATION ..................................................................................................... 31 21 DATA SHEET STATUS .................................................................................................... 31 22 LIFE SUPPORT POLICY .................................................................................................. 31 23 RELATED DOCUMENTS ................................................................................................. 32 24 CONTACT INFORMATION ............................................................................................... 32
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 4 -  ETRX35x Product Manual     The Telegesis ETRX351 and ETRX357 modules are low power 2.4GHz  ZigBee  modules,  based  on  the  latest  Ember  EM351 and EM357 single chip ZigBeeTM solutions.  These  3rd  generation  modules  have  been  designed  to  be integrated into any device without the need for RF experience and  expertise.  Utilizing  the  EmberZNet  ZigBee  stack,  the ETRX35x  enables  you  to  add  powerful  wireless  networking capability to your products and quickly bring them to market.  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 InSight development environment. 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 optical  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 3.6V) •  Optional  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, FCC and IC compliance, FCC modular approval  •  Operating temperature range: -40°C to +85°C •  Long  range  version  with a link budget of up to  124dB available in the same form factor Radio Features •  Based  on  the  Ember  EM351  or  EM357  single  chip ZigBee  solutions •  2.4GHz ISM Band •  250kbit/s over the air data rate •  16 channels (IEEE802.15.4 Channel 11 to 26) •  +3dBm output power ( +8dBm in boost mode) •  High  sensitivity  of  -100dBm  (-102dBm  in  boost  mode) typically @ 1% packet error rate •  RX Current: 26mA, TX Current: 31mA at 3dBm •  Robust Wi-Fi and Bluetooth coexistence 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. 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 and ETRX357  ©2010 Telegesis (UK) Ltd  - 5 -  ETRX35x Preliminary Product Manual 1  Introduction This  document  describes  the  Telegesis  ETRX351  and  ETRX357  ZigBee®  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  and ETRX357 modules can be used with custom-built firmware whilst representing an ideal platform for custom firmware development in conjunction with the Ember development kits. No RF experience or expertise is required to add this powerful wireless networking capability to your products.  The ETRX351 and ETRX357 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 and ETRX357 are the single chip EM351 and EM357 SoCs  from  Ember, 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 coaxial connector for attaching external antennae.  Modules with the U.FL connector are identified by the “HR” suffix. The integrated antenna is an Antenova Rufa, and details of the radiation pattern etc are available from the Antenova website [5].  Module Chip Flash RAM ETRX351 EM351 128kB 12kB ETRX351HR EM351 128kB 12kB ETRX357  EM357  192kB  12kB ETRX357HR EM357 192kB 12kB Table 1: Memories The ETRX351 and ETRX357 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  Ember  InSight  toolchain,  consisting  of  InSight  Desktop™  together  with  a comprehensive integrated development environment (IDE).  The Ember development environment is  currently  not  suitable  for  developing  an  IEEE802.15.4-only application  that  does  not  use  the ZigBee® layer.
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 6 -  ETRX35x Preliminary Product Manual 2  Product Approvals The ETRX351 and ETRX357 as well as the ETRX351HR and ETRX357HR have been designed to meet all national regulations for world-wide use.  In particular the following certifications have been obtained: 2.1  FCC Approvals  The Telegesis ETRX351 and ETRX357 with integrated Antenna as well as the ETRX351HR and the ETRX357HR including the antennae listed in Table 2:  Approved Antennae have 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.  FCC statement:  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.   Item Part No. Manufacturer Type Gain 1  BT-Stubby  EAD Ltd. [6]  ¼ Wave  0dBi 2 WH-2400-U2.5 Wellhope Wireless [7] ½ Wave 2.5dBi Table 2:  Approved Antennae While  the  applicant  for  a  device  into  which  the  ETRX351  (ETRX357)  or  ETRX351HR (ETRX357HR)  with  an  antenna  listed  in  Table  2  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. When using the ETRX351HR and ETRX357HR with approved antennae, it is required to prevent end-users from replacing them with non-approved ones.  2.1.1  FCC Labelling Requirements When integrating the ETRX351, ETRX357, ETRX351HR or ETRX357HR into a product it 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: S4GEM35XA) as well as the FCC notice shown on the previous page.  This exterior label can use wording such as “Contains  Transmitter  Module  FCC  ID:  S4GEM35XA”  or  “Contains  FCC  ID:S4GEM35XA” although any similar wording that expresses the same meaning may be used.  FCC ID: S4GEM35XA
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 7 -  ETRX35x Preliminary Product Manual 2.2  IC (Industry Canada) Approvals  The Telegesis ETRX351 and ETRX357 with integrated Antenna as well as the ETRX351HR and the ETRX357HR including the antennae listed in Table 2:  Approved Antennae  have been tested to comply with IC.    IC-ID: 8735A-EM35XA  The labelling requirements for Industry Cannada are similar to those of the FCC. Again a clearly visibly lable must be placed on the outside of the finished product stating something like “Contains Transmitter Module, IC: 8735A-EM35XA”, although any similar wording that expresses the same meaning may be used.  The integrator is responsible for the final product to comply to IC ICES-003 and FCC Part 15, Sub. B – Unintentional Radiators.    2.3  European Certification (ETSI) The  ETRX351,  ETRX357,  ETRX351HR  and  ETRX357HR  have  been  certified  to  the  following standards: •  Radio:    EN 300 328:V1.7.1  •  EMC:    EN 301 489-17:V2.1.1  •  Safety:    EN 60950-1:2005 (Ed. 2.0)  •   For this purpose the ETRX351HR and ETRX357HR have been tested with the antennae listed in Table 2:  Approved Antennae . If  the  ETRX351,  ETRX357,  ETRX351HR  or  ETRX357HR  module  is  incorporated  into  an  OEM product,  the  OEM  product  manufacturer  must  ensure  compliance  of  the  final  product  to  the European Harmonised EMC, and low voltage/safety standards. A Declaration of Conformity must be issued  for  each  of  these standards and kept  on  file as described in Annex II of the  R&TTE Directive. The final product must not exceed the specified power ratings, antenna specifications  and installation requirements as specified in this user manual.  If any of these specifications are exceeded in the final product then a submission must be made to a notified body for compliance testing to all of the required standards. The ‘CE’ marking must be applied to a visible location on any OEM product.  For more information please  refer  to  http://ec.europa.eu/enterprise/faq/ce-mark.htm.    Customers  assume  full responsibility for learning and meeting the required guidelines for each country in their distribution market.
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 8 -  ETRX35x Preliminary Product Manual 2.4  ICASA Approvals  The ETRX351, ETRX357, ETRX351HR and ETRX357HR have been certified to be used in South Africa.  2.5  Australia and New Zealand (C-Tick) The  ETRX351,  ETRX357,  ETRX351HR  and  ETRX357HR  have  been  certified  to  be  used  in Australia and new Zealand. 2.6  Declarations of Conformity Telegesis  (UK)  Ltd  has  issued  Declarations  of  Conformity  for  all  ETRX3  series  ZigBee®  RF Modules, which cover Radio Emissions, EMC and Safety. These documents are available from our website or on request.   2.7  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. 2.8  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  the  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 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 and ETRX357  ©2010 Telegesis (UK) Ltd  - 9 -  ETRX35x Preliminary Product Manual 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  and  the  Telegesis development kit documentation to understand how the pre-programmed 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 ideally to a ground plane.   ETRX35x Pad  Name  EM35x Pin Default use Alternate Functions 1  GND  GND  GND   2  PC5 {1}  11    TX_ACTIVE  3  PC6  13  O/P  OSC32B, nTX_ACTIVE 4  PC7  14  O/P  OSC32A, OSC32_EXT 5  PA7 {5}  18  O/P  TIM1C4 6  PB3 {2,3}  19  O/P, CTS  SC1nCTS, SC1SCLK, TIM2C3 7  nReset  12  nReset   8  PB4 {2,3}  20  O/P, RTS  TIM2C4, SC1nRTS, SC1nSSEL 9  PA0  21  O/P  TIM2C1, SC2MOSI 10  PA1  22  O/P  TIM2C3, SC2SDA, SC2MISO 11  PA2  24  O/P  TIM2C4, SC2SCL, SC2SCLK 12  PA3  25  O/P  SC2nSSEL, TRACECLK, TIM2C2 13  GND  GND  GND   14  PA4  26  O/P  ADC4, PTI_EN, TRACEDATA 15  PA5 {4}  27  O/P  ADC5, PTI_DATA, nBOOTMODE, TRACEDATA3 16  PA6 {5}  29  O/P  TIM1C3 17  PB1 {3}  30  TXD  SC1MISO, SC1MOSI, SC1SDA, SC1TXD, TIM2C1 18  PB2 {3}  31  RXD  SC1MISO, SC1MOSI, SC1SCL, SC1RXD, TIM2C2 19  GND  GND  GND
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 10 -  ETRX35x Preliminary Product Manual ETRX35x Pad  Name  EM35x Pin Default use Alternate Functions 20  GND  GND  GND   21  JTCK  32    SWCLK 22  PC2  33  O/P  JTDO, SWO 23  PC3  34  O/P  JTDI 24  PC4  35  O/P  JTMS, SWDIO 25  PB0  36  I/P, IRQ  VREF, IRQA, TRACECLK, TIM1CLK, TIM2MSK 26  PC1  38  ADC  ADC3, SWO, TRACEDATA0 27  PC0 {5}  40  O/P  JRST, IRQD, TRACEDATA1 28  PB7 {5}  41  ADC  ADC2, IRQC, TIM1C2 29  PB6 {5}  42  ADC  ADC1, IRQB, TIM1C1 30  PB5  43  ADC  ADC0, TIM2CLK, TIM1MSK 31  GND  GND  GND   32  Vcc  Vcc  Vcc   33  GND  GND  GND   Table 3:  Pin Information Notes: {1}    When  the  alternate  function  is  selected,  TX_ACTIVE  becomes  an  output  that  indicates  that  the EM35x  radio  circuit  is  in  transmit  mode.    PC5  is  not  usable  on  the  long  range  version  of  the ETRX35x as this GPIO is used internally as TX_ACTIVE to control the external RF frontend. {2}  The serial UART connections TXD, RXD, CTS and RTS are PB1, PB2, PB3 and PB4 respectively {3}  When using the Telegesis AT Commandset, RTS/CTS handshaking is selectable in firmware.  See the AT Command Manual. {4}  If PA5 is driven low at power-up or reset the module will boot up in the bootloader {5}  PA6, PA7, PB6, PB7 and PC0 can drive high current (see section 8) See also the table “Module pads and functions” in the ETRX357 Development Kit Product Manual.
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 11 -  ETRX35x Preliminary Product Manual 4  Hardware Description    24MHz EM35x I/O UART I / O programming 5 JTAG Vcc Vreg RESET RESET BALUN integrated antenna U.FL socket rf terminal selection, filtering and matching circuitry    LDO 1V8 1,8Vdc A/D    LDO 1V25  Figure 2: Hardware Diagram  The ETRX351, ETRX351HR, ETRX357 and ETRX357HR are based on the Ember EM351 and EM357 respectively. The EM351 and EM357 are fully integrated 2.4GHz ZigBee transceivers with a 32-bit ARM® Cortex M3TM microprocessor, flash and RAM memory, and peripherals.  The industry standard serial wire and JTAG programming and debugging interfaces together with the  standard  ARM  system  debug  components  help  to  streamline  any  custom  software development.  In  addition  to  this  a  number  of  MAC  functions  are  also  implemented  in  hardware  to  help maintaining the strict timing requirements imposed by the ZigBee and IEEE802.15.4 standards.  The new advanced power management features allow faster wakeup from sleep and new power down  modes  allowing  this  3rd  generation  module  to  offer  a  longer  battery  life  than  any  2nd generation modules on the market.  The  EM35x  has  fully  integrated  voltage  regulators  for  both  required  1.8V  and  1.25V  supply voltages. The voltages are monitored (brown-out detection) and the built in power-on-reset circuit eliminates the need for any external monitoring circuitry. An optional 32.768 kHz watch crystal can be connected externally to pads 3 and 4 in case more accurate timing is required. To utilize the external watch crystal custom firmware is required. 4.1  Hardware Interface All GPIO pins of the EM351 or EM357 are accessible on the module’s pads.  Whether signals are used as general purpose I/Os, or assigned to a peripheral function like ADC is set by the firmware. When using the Telegesis AT Commandset please refer to the AT Commandset manual and the development kit manual for this information and when developing custom firmware please refer to the EM35x datasheet [2].
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 12 -  ETRX35x Preliminary Product Manual 5  Firmware Description The  modules  will  be  pre-loaded  with  a  standalone  bootloader  which  supports  over-the-air bootloading as well as serial bootloading of new firmware. In  order  to  enter  the  standalone  bootloader  using  a  hardware  trigger  pull  PA5  to  ground  and power-cycle  or  reset  the  module.    To  avoid  entering  the  standalone  bootloader  unintentionally make sure not to pull this pin down during boot-up unless the resistance to ground is >10kΩ.  (A pull-up is not required). In  addition  to  the  standalone  bootloader  the  modules  also  contain  the  current  release  of  the Telegesis AT-style command interface as described in the Telegesis AT command dictionary and the  Telegesis  user  guide.    Check  www.telegesis.com  for  updates.  Each  module  comes  with  a unique  64-bit  802.15.4  identifier  which  is  stored  in  non-volatile  memory.  The  commands  and responses  pass  through  the  serial  port  of  the  ETRX35x  as  ASCII  text,  so  a  simple  terminal application will usually suffice.  We provide Telegesis Terminal for interaction with the module but it is not an essential feature. The pre-loaded AT-style command interface firmware is based on the latest EmberZNet meshing stack which implements routers/coordinators as well as (sleepy) end devices.  [End devices have no routing responsibility and therefore are allowed to go to sleep, whilst still being able to send and receive messages via a parent router.  In addition to classical sleepy and non-sleepy end devices the module firmware also supports mobile (sleepy) end devices capable of changing their parent quickly whenever they change their position within the network.]  A  router  is  typically  a  mains  powered  device  whilst  a  sleepy end  device  (SED)  can  be  battery powered. The module is also able to act as a coordinator and Trust Centre through external host control.  The AT style command line supplies all the tools required to set up and manage a ZigBee network by allowing easy access to the low-level functionality of the stack. The Telegesis firmware uses the meshing and self healing EmberZNet PRO stack to overcome many of the limitations of the tree network topology of the ZigBee® 2006 stack by using the ZigBee PRO featureset. The  Telegesis  firmware  allows  low-level  access  to  physical  parameters  such  as  channel  and power  level.    Parameters  that  define  the  functionality  of  the  ETRX35x  module  and  also  allow standalone functionality are saved in non-volatile memory organised in so-called S-Registers.  The SPI and I2C buses are not supported by the current firmware release, but can be used with custom firmware. 5.1  Custom Firmware For  high  volume customers  the  firmware can be  customised  on request. In  addition  to  this  the ETRX3 series of modules is an ideal platform for developing custom firmware. In order to develop custom firmware the Ember Insight toolchain is required.
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 13 -  ETRX35x Preliminary Product Manual 5.2  Software Interface Using the default firmware the ETRX35x is controlled using a simple AT-style command interface and  (mostly)  non-volatile  S-Registers.    In  order  to  get  a  full  listing  of  all  the  available  AT-Commands,  please  refer  to  the  AT  command  dictionary  document  which  corresponds  to  the firmware revision you intend to use. In addition to the command dictionary there are user guides explaining the features of the firmware in more detail.  If you need to find out which firmware resides on your module simply type “ATI” followed  by  a  carriage  return  and  you  will  be  prompted  with  the  module’s  manufacturing information. The Development Kit manual describes how to upgrade the firmware either via a serial link or over the air.
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 14 -  ETRX35x Preliminary Product Manual 6  Absolute Maximum Ratings   No. Item Symbol Absolute Maximum Ratings Unit 1  Supply voltage  VCC  -0.3 to +3.6  Vdc 2  Voltage on any Pad  Vin  -0.3 to VCC +0.3  Vdc 3 Voltage on any Pad pin (PA4, PA5, PB5, PB6, PB7, PC1), when used as an input to the general purpose ADC with the low voltage range selected Vin  -0.3 to +2.0  Vdc 4  Storage temperature range  Tstg  -40 to +105  °C 5  Operating temperature range  Top  -40 to +85  °C 6  Input RF level  Pmax  15  dBm 8  Reflow temperature  TDeath  Please refer to chapter 12  °C Table 4:  Absolute Maximum Ratings The  absolute  maximum  ratings  given  above  should  under  no  circumstances  be  violated.  Exceeding one or more of the limiting values may cause permanent damage to the device. Caution!  ESD sensitive device.  Precautions should be used when handling the device in order to prevent permanent damage.   6.1  Environmental Characteristics  No. Item Symbol Absolute Maximum Ratings Unit 1  ESD on any pad according to  Human Body Model (HBM) circuit description  VTHHBM ±2  kV 2  ESD on non-RF pads according to  Charged Device Model (CDM) circuit description  VTHCDM ±400  V 3  ESD on RF terminal according to  Charged Device Model (CDM) circuit description VTHCDM ±225  V 4  Moisture Sensitivity Level  MSL  MSL3   Table 5:  Absolute Maximum Ratings  6.2  Recommended Operating Conditions  No. Item Condition / Remark  Symbol  Value  Unit     Min Typ Max  1  Supply voltage    VCC  2.1    3.6  Vdc 2  RF Input Frequency     fC  2405    2480  MHz 3  RF Input Power    pIN      0  dBm 4  Operating temperature range    Top  -40    +85  °C Table 6:  Recommended Operating Conditions
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 15 -  ETRX35x Preliminary Product Manual 7  DC Electrical Characteristics  VCC = 3.0V, TAMB = 25°C, NORMAL MODE (non-Boost) unless otherwise s tated  No. Item Condition / Remark  Symbol  Value  Unit     Min Typ Max  1  Module supply voltage     VCC  2.1    3.6  Vdc Deep Sleep Current 2  Quiescent current,  internal RC oscillator disabled    ISLEEP    0.4    µA 3  Quiescent current, internal RC oscillator enabled    ISLEEP    0.7    µA 4  Quiescent current, including 32.768kHz oscillator     ISLEEP    1.0    µA 5 Quiescent current including internal RC oscillator and 32.768kHz oscillator   ISLEEP    1,3    µA Reset Current 6  Quiescent current NReset asserted    IRESET    1.2  2.0  mA Processor and Peripheral Currents 7  ARM® CortexTM M3, RAM and flash memory  25°C, 12MHz Core clock  IMCU    6.0    mA 8  ARM® CortexTM M3, RAM and flash memory  25°C, 24MHz Core clock  IMCU    7.5    mA 9  ARM® CortexTM M3, RAM and flash memory sleep current 25°C, 12MHz Core clock  IMCU    3.0    mA 10  ARM® CortexTM M3, RAM and flash memory sleep current 25°C, 6MHz Core clock  IMCU    2.0    mA 11  Serial controller current  Per serial controller at max. clock rate  ISC    0.2    mA 12  General purpose timer current  Per timer at max. clock rate  ITIM    0.25    mA 13  General purpose ADC current  Max. Sample rate, DMA  IADC    1.1    mA RX Current 14  Radio receiver MAC and Baseband  ARM® CortexTM M3 sleeping.  IRX    22    mA 15  Receive current consumption  Total, 12MHz clock speed   IRX    25    mA 16  Receive current consumption  Total, 24MHz clock speed  IRX    26.5    mA 17  Receive current consumption BOOST MODE Total, 12MHz clock speed   IRX    27    mA 18  Receive current consumption BOOST MODE Total, 24MHz clock speed  IRX    28.5    mA TX Current 19  Transmit current consumption  at +3dBm module output  power  ITXVCC    31    mA 20  Transmit Current consumption BOOST MODE at +8dBm module output  power  ITXVCC    42    mA
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 16 -  ETRX35x Preliminary Product Manual 21  Transmit current consumption  at +0dBm module output  power  ITXVCC    28.5    mA 22  Transmit current consumption  at min. module output  power  ITXVCC    23.5    mA 23  Wake time from deep sleep From wakeup event to 1st instruction       100    µs 24  Shutdown time  From last instruction into deep sleep      5    µs Table 7:  DC Electrical Characteristics  Please Note:  The average current consumption during operation  is dependent on  the  firmware and  the  network  load,  therefore  these  figures  are  provided  in  the  command  dictionary  of  the respective firmware.
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 17 -  ETRX35x Preliminary Product Manual 8  Digital I/O Specifications  The digital I/Os of the ETRX35x module   VCC = 3.0V, TAMB = 25°C, NORMAL MODE unless otherwise stated  No. Item Condition / Remark  Symbol  Value  Unit     Min Typ Max  1  Low Schmitt switching threshold Schmitt input threshold going from high to low  VSWIL  0.42 x VCC    0.5 x VCC  Vdc 2  High Schmitt switching threshold  Schmitt input threshold going from low to high  VSWIH  0.62 x VCC    0.8 x VCC  MHz 3  Input current for logic 0    IIL      -0.5  µA 4  Input current for logic 1    IIH      0.5  µA 5  Input Pull-up resistor value    RIPU  24  29  34  kΩ 6  Input Pull-down resistor value    RIPD  24  29  34  kΩ 7  Output voltage for logic 0  IOL = 4mA (8mA) for standard (high current) pads   VOL  0    0.18 x VCC  V 8  Output voltage for logic 1  IOH = 4mA (8mA)for standard (high current) pads  VOH  0.82 x VCC    VCC  V 9  Output Source Current  Standard current pad  IOHS      4  mA 10  Output Sink current  Standard current pad  IOLS      4  mA 11  Output Source Current  High current pad  IOHH      8  mA 12  Output Sink current  High current pad  IOLH      8  mA 13  Total output current    IOH + IOL      40  mA Table 8.  Digital I/O Specifications
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 18 -  ETRX35x Preliminary Product Manual 9  A/D Converter Characteristics The ADC is a first-order sigma-delta converter.  For additional information on the ADC please refer to section 10 of the EM35x datasheet.  No. Item  1  A/D resolution  Up to 12 bits  2  A/D sample time for 5-bit conversion  5.33µs  3  A/D sample time for 12-bit conversion  682µs 4  Reference Voltage  1.25V or Vcc Table 9.  A/D Converter Characteristics 10 AC Electrical Characteristics VCC = 3.0V, TAMB = 25°C, NORMAL MODE measured at 50 Ω terminal load connected to the U.FL socket   No. Receiver Value Unit   Min Typ Max  1  Frequency range  2400    2500  MHz 2  Sensitivity for 1% Packet Error Rate (PER)    -100  -94  dBm 3  Sensitivity for 1% Packet Error Rate (PER) BOOST MODE    -102  -96  dBm 4  Saturation (maximum input level for correct operation)  0      dBm 5  High-Side Adjacent Channel Rejection  (1% PER and desired signal –82dBm acc. to [1])    35    dB 6  Low-Side Adjacent Channel Rejection  (1% PER and desired signal –82dBm acc. to [1])    35    dB 7  2nd High-Side Adjacent Channel Rejection  (1% PER and desired signal –82dBm acc. to [1])    46     8  2nd Low-Side Adjacent Channel Rejection  (1% PER and desired signal –82dBm acc. to [1])    46     9  Channel Rejection for all other channels (1% PER and desired signal –82dBm acc. to [1])    40    dB 10  802.11g rejection centred at +12MHz or –13MHz (1% PER and desired signal –82dBm acc. to [1])    36    dB 11  Co-channel rejection (1% PER and desired signal –82dBm acc. to [1])    -6    dBc 12  Relative frequency error (2x40ppm required by [1])  -120    120  ppm 13  Relative timing error (2x40ppm required by [1])  -120    120  ppm 14  Linear RSSI range  40      dB 15  Output power at highest power setting NORMAL MODE BOOST MODE 0  3 8    dBm 16  Output power at lowest power setting    -55    dBm 17  Error vector magnitude as per IEEE802.15.4    5  15  % 18  Carrier frequency error  -40    40  ppm 19  PSD mask relative 3.5MHz distance from carrier  -20      dB 20  PSD mask absolute 3.5MHz distance from carrier  -30      dBm Table 10.  AC Electrical Characteristics
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 19 -  ETRX35x Preliminary Product Manual Please  Note:    For  the  relationship  between  EM35x  power  settings  and  module  output  power please  relate  to chapter  10.1  of  this  document.    When  developing  custom  firmware  the  output power settings described in this document relate directly to the EM35x power settings accessible via the Ember stack API.  No. Synthesiser Characteristics Limit Unit   Min Typ Max  22  Frequency range  2400    2500 MHz 23  Frequency resolution    11.7    kHz 24  Lock time from off state, with correct VCO DAC settings      100  µs 25  Relock time, channel change or Rx/Tx turnaround      100  µs 26  Phase noise at 100kHz offset    -75dBc/Hz     27  Phase noise at 1MHz offset    -100dBc/Hz    28  Phase noise at 4MHz offset    -108dBc/Hz    29  Phase noise at 10MHz offset    -114dBc/Hz    Table 11:  Synthesiser Characteristics  No. Power On Reset (POR) Specifications Limit Unit   Min Typ Max  30  VCC POR release  0.62  0.95  1.2  Vdc 31  VCC POR assert  0.45  0.65  0.85  Vdc Table 12:  Power On Reset Specifications   No. nRESET Specifications Limit Unit   Min Typ Max  32  Reset Filter Time constant  2.1  12  16  µs 33  Reset Pulse width to guarantee a reset  26      µs 34  Reset Pulse width guaranteed not to cause reset  0    1  µs Table 13:  nReset Specifications
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 20 -  ETRX35x Preliminary Product Manual 10.1  TX Power Characteristics The diagrams below show the typical output power and module current in dependency on module EM35x power setting . Power settings above 3dBm have Boost Mode enabled. Please note that the output power is independent of the supply voltage as the radio is supplied by an internally regulated voltage. Figure 3:  Output Power vs. Power Setting
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 21 -  ETRX35x Preliminary Product Manual  Figure 4: Module Current vs. Power Setting
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 22 -  ETRX35x Preliminary Product Manual 11 Physical Dimensions  Figure 5:  ETRX3 Physical Dimensions  Symbol  Explanation  Typical Distance  L   Length of the module   25.0mm  W   Width of the module   19.0mm  H   Height of the module   3.8mm  A1   Distance centre of pad PCB edge  0.9mm  A2  Pitch   1.27mm  R1   Keep-out Zone from corner of PCB   17.5mm  R2   Keep-out Zone from corner of PCB   4.1mm  X1   Distance centre of Antenna connector PCB edge   3.8mm  X2   Distance centre of Antenna connector PCB edge   2.8mm  Table 14:  ETRX3 Physical Dimensions For ideal RF performance when using the on-board antenna, the antenna should be located at the corner of the carrier PCB.  There should be no components, tracks or copper planes in the keep-out area which should be as large as possible.  When using the U.FL RF connector the keep-out area does not have to be obeyed.  Note: The modules’ transmit/receive range will depend on the antenna used and also the housing of the finished product.
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 23 -  ETRX35x Preliminary Product Manual 12 Soldering Temperature Profile (for reflow soldering) 12.1  For Leaded Solder         Recommended temperature profile for reflow soldering Temp.[°C] Time [s] 235°C max. 220 ±5°C 200°C 150 ±10°C 90 ±30s 10 ±1s 30 +20/-10s  Figure 6:  Temperature Profile for Leaded Solder 12.2  For Lead-free Solder         Recommended temperature profile for reflow soldering Temp.[°C]  Time [s] 230°C -250°C max. 220°C 150°C – 190°C 90 ±30s 30 +20/-10s  Figure 7:  Temperature Profile for Lead-free Solder Please Note: Maximum number of reflow cycles:  2 Opposite-side reflow is prohibited due to the module’s weight.  (i.e. you must not place the module on the bottom / underside of your pcb and re-flow).
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 24 -  ETRX35x Preliminary Product Manual 13 Product Label Drawing  Figure 8:  Product Label The  label  dimensions  are  14.0mm  x  14.0  mm.    The  label  will  withstand  temperatures  and chemicals used during a typical manufacturing process.   Example imprint Description ETRX357HR  Module Order code 000001  Indication for the serial number. 090101  Production Date Code in the format YYMMDD, e.g. 090602 01  Indication for batch number 02  Indication for the hardware revision FCC ID: S4GEM35XA  FCC ID code for this product 2D-Barcode Information in the Datamatrix 2D-Barcode are the serial number [6 characters], the Part-Order code [12 characters], identifier for the batch number [2 characters], the identifier for the hardware release [2 characters] and the production date code in the format Year-Month-Day [6 characters], separated by a semicolon. Table 15:  ETRX3xx Label Details
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 25 -  ETRX35x Preliminary Product Manual 14 Recommended Footprint  In order to surface mount an ETRX3 series module, we recommend that you use pads which are 1mm wide and 1.2mm high.  You must retain the keep-out zone shown in section 12, and ensure that this keep-out area is free of components, copper tracks and/or copper planes/layers.  You must also ensure that there is no exposed copper on your layout which may contact with the backside of the ETRX3 series module.  For best RF performance it is required to provide good ground connections to the ground pads of the module.  It is recommended to use multiple vias between each ground pad and a solid ground plane to minimize inductivity in the ground path.  Figure 9:  Recommended Footprint The land pattern dimensions above serve as a guideline.  We recommend that you use the same pad dimensions for the solder paste screen as you have for the copper pads.  However these sizes and shapes may need to be varied depending on your soldering processes and  your individual production standards.  We recommend a paste screen thickness of 120µm to 150µm.  Although the undersides of the ETRX3 series modules are fully coated, no exposed copper, such as  uncovered  through-hole  vias,  planes  or  tracks  on  your  board  component  layer,  should  be located below the ETRX3 series module in order to avoid ‘shorts’.  All ETRX3 series modules use a multilayer PCB containing an inner RF shielding ground plane, therefore there is no need to have an additional copper plane directly under the ETRX3 series module.
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 26 -  ETRX35x Preliminary Product Manual 14.1  Example carrier board Since the RF performance of the module with the on board antenna is strongly dependent on the proper location of the module on its carrier board, Figure 10 shows the reference carrier board which was used during testing by Telegesis.  Figure 10.  Reference Board For best performance it is recommended to locate the antenna towards the corner of the carrier board and to respect the recommended keep-out areas as described in section 11. Finally to provide a good reference ground to the on board antenna, the carrier board should have a ground plane spanning no less than 40 x 40mm.  In many cases a smaller ground plane will suffice, but degradation in radio performance could be the result.
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 27 -  ETRX35x Preliminary Product Manual 15 Reliability Tests The measurements below have been conducted on random samples out of mass production and passed after the module has been exposed to standard room temperature and humidity for 1 hour.  No Item Limit Condition 1  Vibration test  Electrical parameter should be in specification a) Freq.:10~50Hz,Amplitude:1.5mm a) 20min. / cycle,1hrs. each of XYZ axis b) Freq.:30~100Hz, 6G b) 20min. / cycle,1hrs. each of XYZ axis 2  Shock test  the same as the above  Dropped onto hard wood from height of 50cm for 3 times 3  Heat cycle test  the same as the above  -40°C for 30min. and  +85°C for 30min.;  each temperature 300 cycles 4  Moisture test  the same as the above  +60°C, 90% RH, 300h 5  Low temp. test  the same as the above  -40°C, 300h 6  High temp. test  the same as the above  +85°C, 300h Table 16:  Reliability Tests 16 Application Notes 16.1  Safety Precautions These specifications are intended to preserve the quality assurance of products as individual components. Before  use,  check and evaluate  the module’s operation  when  mounted on  your  products. Abide by these specifications when using the products.  These products may short-circuit.  If electrical shocks, smoke, fire, and/or accidents involving human life are anticipated when a short circuit occurs, then provide the following failsafe functions as a minimum: (1)  Ensure the safety of the whole system by installing a protection circuit and a protection device. (2)  Ensure  the  safety  of  the  whole  system  by  installing  a  redundant  circuit  or  another system to prevent a single fault causing an unsafe status. 16.2  Design Engineering Notes (1)  Heat is the major cause of shortening the life of the modules.  Avoid assembly and use of the target equipment in conditions where the product’s temperature may exceed the maximum allowable. (2)  Failure to do so may result in degrading of the product’s functions and damage to the product. (3)  If pulses or other transient loads (a large load applied in a short time) are applied to the products, before use, check and evaluate their operation when assembled onto your products. (4)  These products are not intended for other uses, other than under the special conditions shown below.  Before using these products under such special conditions, check their
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 28 -  ETRX35x Preliminary Product Manual performance  and  reliability  under  the  said  special  conditions  carefully,  to  determine whether or not they can be used in such a manner. (5)  In liquid, such as  water, salt water, oil, alkali, or organic solvent, or in places where liquid may splash. (6)  In direct sunlight, outdoors, or in a dusty environment (7)  In an environment where condensation occurs. (8)  In an environment with a high concentration of harmful gas (e.g. salty air, HCl, Cl2, SO2, H2S, NH3, and NOx) (9)  If an abnormal voltage is applied due to a problem occurring in other components or circuits, replace these products with new  products because they may not be able to provide normal performance even  if their electronic characteristics and appearances appear satisfactory. (10)  Mechanical stress during assembly of the board and operation has to be avoided. (11)  Pressing  on  parts  of  the  metal  cover  or  fastening  objects  to  the  metal  cover  is  not permitted. 16.3  Storage Conditions (1)  The module must not be stressed mechanically during storage. (2)  Do  not  store  these  products  in  the  following  conditions  or  the  performance characteristics  of  the  product,  such  as  RF  performance,  may  well  be  adversely affected: (3)  Storage in salty  air or in an environment with  a high concentration of corrosive gas, such as Cl2, H2S, NH3, SO2, or NOX (4)  Storage in direct sunlight (5)  Storage in an environment where the temperature may be outside the range of 5°C to 35°C range, or where the humidity may be outside th e 45 to 85% range. (6)  Storage (before assembly of the end product) of the modules for more than one year after the date of delivery at your company even if all the above conditions (1) to (3) have been met, should be avoided.  17 Packaging 17.1  Embossed Tape (1)  Dimension of the tape  t.b.d.
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 29 -  ETRX35x Preliminary Product Manual (2)  Cover tape peel force   Force direction Speed = 300mm/min. Cover tape peel force               =0.098~0.68N (10~70g) θ= 10deg  (3)  Empty pockets    Empty pockets more     Components        Empty pockets   Top cover tape       Direction of feed g    NB:  Empty pockets in the populated area will be less than two per reel and those empty pockets will not be consecutive. 17.2  Component Orientation Top cover tape will not obstruct the carrier tape holes and will not extend beyond the edges of the carrier tape  (top view)  Component Orientation  Part No.  Direction  17.3  Reel Dimensions (4)  Quantity per reel: 600 pieces (5)  Marking: Part No. / Quantity / Lot No. and manufacturer part# with bar-code will be on the reel t.b.d. 17.4  Packaging (6)  Each reel will be packed in a hermetically-sealed bag (7)  Marking:  Part No. / Quantity / Lot No. and manufacturer part# with bar-code
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 30 -  ETRX35x Preliminary Product Manual 18 Ordering Information Ordering/Product Code Description ETRX351 ETRX357   Telegesis  Wireless  Mesh  Networking  Module  with  Ember ZigBee® Technology:  •  Based on Ember EM351 or EM357 •  Telegesis AT Style Command Interpreter based on  •  EmberZNet  meshing  and  self-healing  ZigBee®  PRO stack • Integrated 2.4GHz Antenna  ETRX351HR ETRX357HR  Telegesis  Wireless  Mesh  Networking  Module  with  Ember  ZigBee® Technology:  •  Based on Ember EM351 or EM357 •  Telegesis AT Style Command Interpreter based on  •  EmberZNet  meshing  and  self-healing  ZigBee®  PRO stack •  U.FL coaxial Antenna Connector ETRX3DVK  Telegesis Development Kit with:  •  3 x ETRX35xDV Development Boards •  3 x USB cables •  2 x ETRX35x on carrier boards •  2 x ETRX35xHR on carrier boards •  2 x ETRX35x-LR on carrier boards •  2 x ETRX35xHR-LR on carrier boards •  1 x ETRX2USB USB stick •  2 x ½-wave antennae •  2 x ¼-wave antennae  Notes: •  Customers’ PO’s must state the Ordering/Product Code. •  There  is  no  “blank”  version  of  the  ETRX35x  modules  available.    All  Modules  are  pre-programmed with the Telegesis AT style command interpreter based on the EmberZNet stack.  (In case it is desired to program custom firmware the pre-programmed firmware can simply be overwritten).
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 31 -  ETRX35x Preliminary Product Manual 19 Disclaimer Product  and  company  names  and  logos  referenced  may  either  be  trademarks  or  registered trademarks  of  their  respective  companies.    We  reserve  the  right  to  make  modifications  and/or improvements without prior notification.  All information is correct at time of issue.  Telegesis (UK) Ltd does not convey any license under its patent rights or assume any responsibility for the use of the described product 20 RoHS Declaration Declaration of environmental compatibility for supplied products: Hereby we declare based on the declaration of our suppliers that this product does not contain the following substances which are banned by Directive 2002/95/EC (RoHS) or if they do, contain a maximum concentration of 0,1% by weight in homogeneous materials for: •  Lead and lead compounds •  Mercury and mercury compounds •  Chromium (VI) •  PBB (polybrominated biphenyl) category •  PBDE (polybrominated biphenyl ether) category And a maximum concentration of 0.01% by weight in homogeneous materials for: •  Cadmium and cadmium compounds 21 Data Sheet Status Telegesis  (UK)  Ltd.  reserves  the  right  to  change  the  specification  without  notice,  in  order  to improve the design and supply the best possible product. Please consult the most recently issued data sheet before initiating or completing a design. 22 Life Support Policy This  product  is  not  designed  for  use  in  life  support  appliances,  devices,  or  systems  where malfunction can reasonably be expected to result in a significant personal injury to the user, or as a critical component in any life support device or system whose failure to perform can be reasonably expected  to  cause  the  failure  of  the  life  support  device  or  system,  or  to  affect  its  safety  or effectiveness.  Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Telegesis (UK) Ltd. for any damages resulting.
 ETRX351 and ETRX357  ©2010 Telegesis (UK) Ltd  - 32 -  ETRX35x Preliminary Product Manual 23 Related Documents [1]  IEEE Standard 802.15.4 –2003 Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low-Rate Wireless Personal Area Networks (LR-WPANs) [2]  Datasheet EM35x, Ember. (www.ember.com) [3]  Datasheet U.FL-Series 2004.2 Hirose Ultra Small Surface Mount Coaxial Connectors - Low Profile 1.9mm or 2.4mm Mated Height [4]  The ZigBee® specification (www.zigbee.org) [5]  Specification for Antenova Rufa Antenna (www.antenova.com) [6]  Embedded Antenna design Ltd. (EAD Ltd.) (www.ead-ltd.com) [7]  Wellhope Communication Equipment (www.wellhope-wireless.com)  24 Contact Information  Website:    www.telegesis.com E-mail    sales@telegesis.com  Telegesis (UK) Limited Abbey Barn Business Centre Abbey Barn Lane High Wycombe Bucks HP10 9QQ UK  Tel:  +44 (0)1494 510199 Fax: +44 (0)5603 436999

Navigation menu