Telit Communications S p A XE61 Wireless module 2.4GHz ZE61/LE61/XE61-2.4 User Manual Revised manual

Telit Communications S.p.A. Wireless module 2.4GHz ZE61/LE61/XE61-2.4 Revised manual

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ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 2 of 54 This document is related to the following product :

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 3 of 54 DISCLAIMER The information contained in this document is the proprietary information of Telit Communications S.p.A. and its affiliates (“TELIT”). The contents are confidential and any disclosure to persons other than the officers, employees, agents or subcontractors of the owner or licensee of this document, without the prior written consent of Telit, is strictly prohibited. Telit makes every effort to ensure the quality of the information it makes available. Notwithstanding the foregoing, Telit does not make any warranty as to the information contained herein, and does not accept any liability for any injury, loss or damage of any kind incurred by use of or reliance upon the information. Telit disclaims any and all responsibility for the application of the devices characterized in this document, and notes that the application of the device must comply with the safety standards of the applicable country, and where applicable, with the relevant wiring rules. Telit reserves the right to make modifications, additions and deletions to this document due to typographical errors, inaccurate information, or improvements to programs and/or equipment at any time and without notice. Such changes will, nevertheless be incorporated into new editions of this document. Copyright: Transmittal, reproduction, dissemination and/or editing of this document as well as utilization of its contents and communication thereof to others without express authorization are prohibited. Offenders will be held liable for payment of damages. All rights are reserved. © Copyright Telit RF Technologies 2011.

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 5 of 54 VI.2. POWER SUPPLY DECOUPLING ON ZE51/61-2.4 MODULE ............................................................................................................................... 35VI.3. RF LAYOUT CONSIDERATIONS ...................................................................................................................................................................... 36VI.4. ANTENNA CONNECTION ON PRINTED CIRCUIT BOARDS ................................................................................................................................. 37VI.5. ZE51/61-2.4 INTERFACING : ........................................................................................................................................................................ 38CHAPTER VII. ANTENNA CONSIDERATIONS....................................................................................... 41VII.1. ANTENNA RECOMMENDATIONS ................................................................................................................................................................... 41VII.2. ANTENNA MATCHING .................................................................................................................................................................................. 42VII.3. ANTENNA TYPES ........................................................................................................................................................................................ 43VII.4. EXTERNAL ANTENNA .................................................................................................................................................................................. 43VII.5. EMBEDDABLE ANTENNAS ............................................................................................................................................................................ 45CHAPTER VIII. ANNEXES ....................................................................................................................... 48VIII.1. DECLARATION OF CONFORMITY ................................................................................................................................................................ 48VIII.2. CONFORMITY ASSESSMENT ISSUES FCC/IC.............................................................................................................................................. 52VIII.3. EXAMPLES OF PROPAGATION ATTENUATION ............................................................................................................................................... 53VIII.4. OUTPUT POWER PROGRAMMING................................................................................................................................................................ 54

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 6 of 54 CHAPTER I. INTRODUCTION I.1. Aim of the Document The aim of this document is to present the features and the application of the ZE51/61-2.4 radio module. After the introduction, the characteristics of the ZE51/61-2.4 radio module will be described within the following distinct chapters: - Requirements - General Characteristics - Technical description - Process information - Board Mounting Recommendations - Antenna Considerations I.2. Contact Information, Support For general contact, technical support, to report documentation errors and to order manuals, contact Telit Technical Support Center (TTSC) at: TS-SRD@telit.com TS-NORTHAMERICA@telit.com TS-LATINAMERICA@telit.com TS-APAC@telit.com Alternatively, use: http://www.telit.com/en/products/technical-support-center/contact.php For detailed information about where you can buy the Telit modules or for recommendations on accessories and components visit: http://www.telit.com To register for product news and announcements or for product questions contact Telit Technical Support Center (TTSC). Our aim is to make this guide as helpful as possible. Keep us informed of your comments and suggestions for improvements. Telit appreciates feedback from the users of our information.

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 7 of 54 I.3. Reference documents [1] IEEE Std. 802.15.4-2006 Wireless MAC and PHY Specifications for Low Rate - WPANs[2] ERC Rec 70-03 ERC Recommendation for SRD, October 2010[3] EN 300 328-1 V1.7.1 (Europe) ETSI Standards for SRD , October 2006[4] EN 300 440-1 V1.6.1 (Europe) ETSI Standards for SRD , August 2010[5] 2002/95/EC Directive of the European Parliament and of the Council, 27 January 2003[6] CFR47 Part 15 (US) FCC Standards for SRD[7] ARIB STD-T66 (Japan) ARIB Standards for SRD[8] Z-One Pro Protocol Stack User Guide 1vv0300902[9] 2006/771/EC Harmonization of the radio spectrum for use by short-range devices[10] 2009/381/EC Amending Decision 2006/771/EC on harmonization of the radio spectrum for use by short-range devices[11] SR Manager Tool User Guide 1vv0300899 [12] ZigBee PRO Democase Getting Started 1vv0300901[13] ZigBee PRO Democase User Guide 1vv0300900I.4. Document change log RReevviissiioonn DDaattee CChhaannggeess ISSUE # 0 11/05/10 First Release ISSUE # 1 28/07/10 Added ZE61-2.4 ISSUE # 2 04/02/11 Updated regulation requirements and schematics in VI.5 ISSUE # 3 14/03/11 Added link for ZE51 USB dongle drivers, info regarding CC debugger. Added in Annex paragraph regarding Conformity Assessment Issues FCC/IC and Declaration of conformity ISSUE # 4 23/05/11 Added text regarding Conformity Assessment Issues FCC/IC and FCC/IC Certification Update of Reference documents, DC characteristics, Functional characteristics, Absolute maximum ratings, DIP module mechanical dimensions and pin-out labels, Correspondence table and Antenna matching Added ZE61-2.4/DIP board radiation pattern

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 8 of 54 I.5. Glossary ARIB Association of Radio Industries and Businesses BER Bit Error Rate Bits/s Bits per second (1000 bits/s = 1Kbps = 1Kbaud)CEPT European Conference of Postal and Telecommunications Administrations CFR Code of Federal Regulations Chips Chip or chip sequence refers to a spreading-code used to transform the original data to DSSS CW Continuous Wave dBm Power level in decibel milliwatt (10 log (P/1mW))DSSS Direct Sequence Spread Spectrum EIRP Effective Isotropic Radiated Power EMC Electro Magnetic CompatibilityEPROM Electrical Programmable Read Only Memory ERC European Radiocommunications Committee ETR ETSI Technical Report ETSI European Telecommunication Standard Institute FCC Federal Communications Commission IEEE Institute of Electrical and Electronics Engineers ISM Industrial, Scientific and Medical KB 1024 bytes (1 byte = 8 bits) Kbps kilobits/s LBT Listen Before Talk LNA Low Noise Amplifier MAC Medium Access Control MHz Mega Hertz (1 MHz = 1000 kHz) Mchip/s Mega chips per second (A measure of the speed with which chips are generated in DSSS) PCB Printed Circuit Board PROM Programmable Read Only Memory PER Packet Error Rate PHY Physical Layer NRZ Non return to Zero RF Radio Frequency RoHS Restriction of Hazardous Substances RSSI Receive Strength Signal Indicator Rx Reception SRAM Static Random Access Memory SRD Short Range Device SMD Surface Mounted Device Tx Transmission Via Metal Hole on a printed circuit board WPANs Wireless Personal Area Networks

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 9 of 54 CHAPTER II. REQUIREMENTS II.1. Regulations requirements The ZE51/61-2.4 module is a [1],[2],[6],[7] compliant multi channel radio modem in the 2.4GHz band (unlicensed frequency band). Europe Regulation: The “ERC recommendation 70-03” [2] describes the limits band in the 2.4GHz license free band, in terms of bandwidth, maximum power, duty cycle, channel spacing and type of application. It gives the following limitations: Class Frequency band Maximum radiated power Channel spacing Duty cycle Notes Annex 1h (Non-Specific Short range Devices) 2400 – 2483.5 MHz 10 mW e.i.r.p. No channel spacing specified No restriction Annex 3a (Wideband Data Transmission systems) 2400 – 2483.5 MHz 100 mW e.i.r.p. and 100 mW/100 kHz e.i.r.p. density applies when frequency hopping modulation is used, 10 mW/MHz e.i.r.p. density applies when other types of modulation are used.(*)(**) No channel spacing specified. No restriction For wide band modulations other than FHSS, the maximum e.i.r.p. density is limited to 10 mW/MHz (*) Compliant to the EU Commission Decision [9], [10]. Techniques to access spectrum and mitigate interference that provide at least equivalent performance to the techniques described in harmonized standards adopted under Directive 1999/5/EC must be used.  (**) For IEEE802.15.4 DSSS modulation used by ZigBee, the modulated signal is spread over 2MHz. So, the maximum radiated power is 20mW. The output power must therefore be reduced to approximately +13 dBm in order to get CE approval. The final output power level will depend on the antenna used.

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 10 of 54 Restrictions for non specific SR devices Annex 1h 2400-2483.5MHz: Country Restriction Reason/Remark Norway Implemented This subsection does not apply for the geographical area within a radius of 20 km from the centre of Ny-Ålesund Russian Federation Bluetooth Ukraine Limited implementation e.i.r.p. ≤100 mW Restrictions for Wideband Data Transmission systems Annex 3a 2400-2483.5MHz: Country Restriction Reason/Remark France Outdoor use limited to 10 mW e.i.r.p. within the band 2454-2483.5 MHz Military Radiolocation use. Reforming of the 2.4 GHz band has been ongoing in recent years to allow current relaxed regulation. Full implementation planned 2012 Italy For private use, a general authorisation is required if WAS/RLAN’s are used outside own premises. For public use, a general authorization is required Ukraine Limited Implemented e.i.r.p. ≤100 mW with built-in antenna with amplification factor up to 6 dBi Norway Implemented This subsection does not apply for the geographical area within a radius of 20 km from the centre of Ny-Ålesund Russian Federation 1. SRD with FHSS modulation 1.1. Maximum 2.5 mW e.i.r.p. 1.2. Maximum 100 mW e.i.r.p. Permitted for use SRD for outdoor applications without restriction on installation height only for purposes of gathering telemetry information for automated monitoring and resources accounting systems. Permitted to use SRD for other purposes for outdoor applications only when the installation height is not exceeding 10 m above the ground surface. 1.3.Maximum 100 mW e.i.r.p. Indoor applications 2. SRD with DSSS and other than FHSS wideband modulation 2.1. Maximum mean e.i.r.p. density is 2 mW/MHz. Maximum 100 mW e.i.r.p. 2.2. Maximum mean e.i.r.p. density is 20 mW/MHz. Maximum 100 mW e.i.r.p. Permitted to use SRD for outdoor applications only for purposes of gathering telemetry information for automated monitoring and

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 11 of 54 resources accounting systems or security systems. 2.3. Maximum mean e.i.r.p. density is 10 mW/MHz. Maximum 100 mW e.i.r.p. Indoor applications For the complete document please refer to [2] and EU Commission Decision [9], [10]. The 2.4 Ghz band is a harmonized band in most of Europe. So the product must be declared in compliance with the harmonized ETSI standards EN 300 440 (Class 1h) or EN 300 228 (Class 3a). Finally, the module complies with the new European Directive 2002/95/EC concerning the Restrictive Usage of Hazardous Substances (RoHS). USA Regulation: In the United States the FCC is responsible for the regulation of all RF devices. Our module intended for unlicensed operation is regulated by CFR 47, Part 15 [6]. The 2.4 GHz band used for unlicensed radio equipment is regulated by section 15.247. Japan regulation In Japan the unlicensed use of short range devices in the 2.4 GHz ISM band is regulated by the ARIB standard STD-T66 [7].

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 12 of 54 II.2. Functional Requirements The ZE51/61-2.4 module is a complete solution from serial interface to RF interface. The ZE51/61-2.4 module has a digital part and a RF part. The digital part has the following functionalities: - Communication interface - I/O management - Micro controller with embedded software The RF part has the following functionalities: - 2.4 GHz IEEE 802.15.4 compliant RF transceiver - Half Duplex bi-directional link - RF front-end component with low noise Rx amplification and Tx power amplification (ZE61-2.4 module only) II.3. Software The ZE51/61-2.4 module is provided pre-flashed with Telit in-house ZigBee® PRO stack. Please refer to ZigBee PRO Protocol Stack User Guide [8] for detail information. In case the customer needs to develop his own software, different tools are available:  8051 compiler from IAR : http://www.iar.se/website1/1.0.1.0/244/1/  CC debugger: http://focus.ti.com/docs/toolsw/folders/print/cc-debugger.html The technical support for these tools will be done by the providing company. All necessary drivers for ZE51-2.4 Usb dongle can be found under the following link: http://www.ftdichip.com/Drivers/VCP.htm A complete correspondence table of the connections between the CC2530 and the pin out of the module, as well as the connections to the included STM M24C64 EEPROM can be found in chapter IV.3.  In case, the customer wants to test the RF performances of the module, Telit can provide its own proprietary test software that is available in the download zone together with description of all the functionalities.

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 13 of 54 II.4. Temperature Requirements Minimum Typical Maximum Unit Operating Temperature - 40 25 + 85 °C Relative humidity @ 25°C 20 75 % Storage Temperature - 40 25 + 85 °C

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 14 of 54 CHAPTER III. GENERAL CHARACTERISTICS III.1. Mechanical Characteristics Size : Rectangular 26 x 15 mm Height : 3 mm Weight : 1,7 g PCB thickness: 0.8 mm Cover :  Dimensions : 21 x 14 x 2.2mm  Thickness : 200µm Components : All SMD components, on one side of the PCB. Connectors : The terminals allowing conveying I/O signals are half-moons located around. Mounting :  SMD  Half moons on the 4 external sides Number of pins : 30

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 15 of 54 III.2. Mechanical dimensions

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 16 of 54 III.3. DC Characteristics Measured on ZE51/61-2.4/DIP interface with T = 25°C, Vdd = 3V, 50 ohm impedance if nothing else noted. Max limits apply over the entire operating range, T=-40°C to +85°C, Vdd=2V to 3.6V and all channels. Characteristics ZE51 Min. Typ. Max. Power Supply (VDD): +2.0V +3.6V Transmission : 35mA 39mA* Reception : 26mA 29mA Stand-by (32.768 khz On) : 2µA 2.7µA Sleep (wake up on interruption) : 1µA I/O low level : GND - 0.9 V I/O high level : VDD - 0.7V - VDD Characteristics ZE61 Min. Typ. Max. Power Supply (VDD): +2.0V +3.6V Transmission : 160mA 195mA* Reception : 31mA 33mA Stand-by (32.768 khz On) : 2,2µA 2.9µA Sleep (wake up on interruption) : 1,5µA I/O low level : GND - 0.9 V I/O high level : VDD - 0.7V - VDD * : Maximum Tx consumption is reached for T= -40°C , Vdd=3.6 Volts and default power register setting. In this condition, the ZE61 RF output power achieves until 21dBm.

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 17 of 54 III.4. Functional characteristics Measured on ZE51/61-2.4/DIP interface with T = 25°C, Vdd = 3V, 50 ohm impedance if nothing else noted. Global Frequency band 2400 - 2483.5 MHz Channel spacing 5 MHz Channel number 16 : Channel 11 (2405MHz)  Channel 26 (2480MHz) Technology DSSS Modulation O-QPSK with half sine pulse shaping Radio bit rate 250 kbps Transmit chip rate 2 Mchip/s Transmission ZE51 Min. Typ. Max. Output Power +4dBm ± 1 dB on the whole band (selectable by software ) Harmonics 2nd harmonic 3rd harmonic -45 dBm -59 dBm Spurious emission 30 - 1000 MHz 1 - 12.75 GHz 1.8 - 1.9 GHz 5.15 - 5.3 GHz -36 dBm -30 dBm -47 dBm -47 dBm (Complies with [3], [4], [6],[7]) Error Vector Magnitude (EVM) 5% 15% Transmission ZE61 Min. Typ. Max.Output Power* +19dBm ± 1 dB on the whole band (selectable by software ) Harmonics 2nd harmonic 3rd harmonic -42 dBm -44 dBm Spurious emission 30 - 1000 MHz 1 - 12.75 GHz 1.8 - 1.9 GHz 5.15 - 5.3 GHz -36 dBm -30 dBm -47 dBm -47 dBm

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 18 of 54 (Complies with [3], [4], [6], [7]) Error Vector Magnitude (EVM) 5% 15% * : It’s the responsibility of Telit customers to check that RF output power of the final product is compliant with the local regulation. See the table in chapter VIII.5 which shows the typical output power for different power settings. Reception ZE51 Min. Typ. Max. Sensitivity for PER=1% - -96 dBm -97 dBm Saturation for PER=1% - 10 dBm - Adjacent channel rejection +/- 5 MHz channel spacing - 49 dB - Wanted signal @ -82 dBm, adjacent modulated channel @ +/- 5 MHz, for PER = 1 %. Alternate channel rejection +/- 10 MHz channel spacing - 54 dB - Wanted signal @ -82 dBm, adjacent modulated channel @ +/- 10 MHz, for PER = 1 %. Blocking/Desensitisation @ ±5MHz @ ±10MHz @±20MHz @±50MHz - - - - - 40 dBm - 35 dBm - 38 dBm - 37 dBm - - - - Wanted signal 3 dB above the sensitivity level, CW jammer, for PER = 1%. (Measured according to EN 300 440 class 2) Spurious emission in 30 MHz - 12.75 GHz - - -47 dBm (Complies with [3], [4], [6],[7])

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 19 of 54 Reception ZE61 Min. Typ. Max. Sensitivity for PER=1% - -99 dBm -100dBm Saturation for PER=1% - 0 dBm - Adjacent channel rejection +/- 5 MHz channel spacing - 49 dB - Wanted signal @ -82 dBm, adjacent modulated channel @ +/- 5 MHz, for PER = 1 %. Alternate channel rejection +/- 10 MHz channel spacing - 54 dB - Wanted signal @ -82 dBm, adjacent modulated channel @ +/- 10 MHz, for PER = 1 %. Blocking/Desensitisation @ ±5MHz @ ±10MHz @±20MHz @±50MHz - - - - - 35 dBm - 35 dBm - 33 dBm - 35 dBm - - - - Wanted signal 3 dB above the sensitivity level, CW jammer, for PER = 1%. (Measured according to EN 300 440 class 2) Spurious emission in 30 MHz - 12.75 GHz - - -47 dBm (Complies with [3], [4], [6],[7])

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 20 of 54 III.5. Digital Characteristics Microcontroller 8051 core Microcontroller Memory 256KB Flash, 8KB SRAM, Peripheral memory 8 KB EEPROM Serial link* Managed by application.  Full Duplex, from 1200 to 115200 bps  7 or 8 bits, with or without parity, 1 or 2 stop bits  Protocol Type : RS-232, TTL level Flow control* Managed by application. None, Software (Xon/Xoff) or Hardware (RTS/CTS) Other Ultra low power voltage detector and µC supervisory circuit Specific signals  Serial : Tx, Rx, RTS, CTS  Inputs : Reset, Stand-By, Prog  I/O : 7 I/O (among those 5 analog inputs with 7 to 12 bits resolution) Flashing  Through serial  Through the air : DOTA (Download Over The Air) functionality Embedded functionality  Point-to-point stack for test purpose available in download zone  ZigBee Pro stack from Telit *: In ZigBee Democase : 115.200 bps,8 bits, without parity, 1 stop bit, No flow control

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 21 of 54 III.6. Absolute Maximum Ratings ZE51 Voltage applied to VDD -0.3V to +3.9VVoltage applied to any digital pin -0.3V to VDD+0.3V, max 3.9 VInput RF level 10 dBm ZE61 Voltage applied to VDD -0.3V to +3.6VVoltage applied to any digital pin -0.3V to VDD+0.3V, max 3.6 VInput RF level 0 dBm CAUTION It must be noted that due to some components, ZE51/ZE61 module is an ESD sensitive device. Therefore, ESD handling precautions should be carefully observed.

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 22 of 54 III.7. Ordering information The following equipments can be ordered: - The SMD version - The DIP interface version - The USB dongle - The Demo Case The versions below are considered standard and should be readily available. For other versions, please contact Telit. Please make sure to give the complete part number when ordering. Equipment and Part NumberSMD Version ZE51/61-2.4/SMD-IA (With Integrated Antenna) ZE51/61-2.4/SMD-WA (Without Integrated Antenna) DIP Version ZE51/61-2.4/DIP-IA (With Integrated Antenna) ZE51/61-2.4/DIP-WA (Without Integrated Antenna) USB Dongle M ZE51/USB Demo Case D ZE51/61 DEMO

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 23 of 54 CHAPTER IV. TECHNICAL DESCRIPTION IV.1. Pin-out of the SMD Module

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 24 of 54 Pin Pin name Pin type Signal level Function J30 GND Gnd RF Ground connection for external antenna J29 Ext_Antenna RF RF I/O connection to external antenna J28 GND Gnd RF Ground connection for external antenna J27 GND Gnd Ground J26 GND Gnd Ground J25 VDD Power Digital and Radio part power supply pin J24 CTS I TTL Clear To Send J23 RESET I TTL µC reset ( Active low with internal pull-up ) J22 RTS O TTL Request To Send J21 RXD I TTL RxD UART – Serial Data Reception J20 GND Gnd Ground J19 TXD O TTL TxD UART – Serial Data Transmission J18 STAND_BY I TTL Standby ( Active high with internal pull-down ) J17 GND Gnd Ground J16 PROG I TTL Signal for serial µC flashing ( Active high with internal pull-down ) J15 GND Gnd Ground J14 DEBUG_D I/O TTL Debug data. J13 GND Gnd Ground J12 GND Gnd Ground J11 GND Gnd Ground J10 DEBUG_C I/O TTL Debug clock J9 RESERVED - - - J8 RESERVED - - - J7 IO7_A I/O analog ADC - Analog Input N°7 (Digital I/O capability) J6 IO6_A I/O analog ADC - Analog Input N°6 (Digital I/O capability) J5 IO5_A I/O analog ADC - Analog Input N°5 (Digital I/O capability) J4 IO4_A I/O analog ADC - Analog Input N°4 (Digital I/O capability) J3 IO3_A I/O analog ADC - Analog Input N°3 (Digital I/O capability) J2 IO2_P I/O TTL Digital I/O N°2 with 20mA sink/source capability J1 IO1_P I/O TTL Digital I/O N°1 with 20mA sink/source capability NOTE: reserved pins must not be connected

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 25 of 54 IV.2. DIP Module mechanical dimensions and pin-out

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 26 of 54 IV.3. Pin-out correspondence table Pin-Out correspondence between ZE51/61-2.4/DIP, ZE51/61-2.4/SMD and CC2530 SOC. ZE51/61-2.4/DIP ZE51/61-2.4/SMD CC2530 SOC Comments Connector Pin Pin Pin Name Pin Pin Name J1 1 2 GND GND 3 J5 P1 15 P0_4 5 J2 P3 9 P1_1 6 J1 P4 11 P1_0 7 J4 P5 16 P0_3 8 J3 P6 17 P0_2 9 GND GND 10 J25 VDD AVDD,DVDD J2 11 J16 PROG 36 P2_0 12 J22 RTS 7 P1_3 13 J24 CTS 8 P1_2 14 J23 Reset 20 Reset_N 15 J21 RxD 6 P1_4 16 J19 TxD 5 P1_5 17 J18 STAND_BY 37 P1_7 18 J22 RTS 7 P1_3 19 J6 P7 14 P0_5 20 GND GND J4 1 J14 Debug D 35 P2_1 J4 Connector for debugging and flashing 2 J10 Debug C 34 P2_2 3 J23 Reset 20 Reset_N 4 J25 VDD AVDD,DVDD 5 GND GND J7 13 P0_6 ZE51 J8 12 P0_7 Reserved J1 4 J9 P2 38 P1_6 J7 13 P0_6 ZE61 J8 Not internally connected J9 RF connection J3 SMA connector J29 Ext_Antenna (Unbalanced RF ) RF Connection to 50 ohm antenna

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 27 of 54 IV.4. Description of the Signals Signals Description Reset External hardware reset of the radio module. Active on low state. TXD, RXD Serial link signals, format NRZ/TTL: TXD is for outgoing data. RXD is for incoming data. The ‘1’ is represented by a high state. CTS Incoming signal. Indicates whether the module can send serial data to user (Active, on low state) or not (inactive, on high state). RTS Outgoing signal. Indicates whether the user can transmit serial data (active, on low state) or not (inactive, on high state). IO I/O, configurable as input or as output. (Available upon request only) STAND_BY Indicates to the module to switch to pre-selected low-power mode. (Available upon request)

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 28 of 54 CHAPTER V. PROCESS INFORMATION V.1. Delivery ZE51/61-2.4/SMD modules are delivered in plastic tray packaging, each tray including 50 units. The dimensions of the tray are the following: 329 mm x 176 mm x 5.6 mm. Each unit is placed in a 26.6 mm x 16 mm location. An empty tray weights 45 g and a loaded tray weights around 130 g.

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 29 of 54 V.2. Storage The optimal storage environment for ZE51/61-2.4/SMD modules should be dust free, dry and the temperature should be included between -40°C and +85°C. In case of a reflow soldering process, tiny radio modules must be submitted to a drying bake at +60°C during 24 hours. The drying bake must be used prior to the reflow soldering process in order to prevent a popcorn effect. After being submitted to the drying bake, tiny modules must be soldered on host boards within 168 hours. Also, it must be noted that due to some components, ZE51/61-2.4/SMD modules are ESD sensitive device. Therefore, ESD handling precautions should be carefully observed. V.3. Soldering pad pattern The surface finished on the printed circuit board pads should be made of Nickel/Gold surface. The recommended soldering pad layout on the host board for the ZE51/61-2.4/SMD-WA, is shown in the diagram below: All dimensions in mm

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 30 of 54 The recommended soldering pad layout on the host board for the ZE51/61-2.4/SMD-IA, is shown in the diagram below: All dimensions in mm Neither via-holes nor wires are allowed on the PCB upper layer in area occupied by the module.

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 31 of 54 V.4. Solder paste composition (RoHS process) ZE51/61-2.4/SMD module is designed for surface mounting using half-moon solder joints (see diagram below). For proper module assembly, solder paste must be printed on the target surface of the host board. The solder paste should be eutectic and made of 95.5% of SN, 4% of Ag and 0.5% of Cu. The recommended solder paste height is 180 μm . The following diagram shows mounting characteristics for tiny integration on host PCB: V.5. Placement The ZE51/61-2.4/SMD module can be automatically placed on host boards by pick-and-place machines like any integrated circuit.

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 33 of 54 The barcode label located on the module shield is able to withstand the reflow temperature. CAUTION It must also be noted that if the host board is submitted to a wave soldering after the reflow operation, a solder mask must be used in order to protect the tiny radio module’s metal shield from being in contact with the solder wave.

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 34 of 54 CHAPTER VI. BOARD MOUNTING RECOMMENDATION VI.1. Electrical environment The best performances of the ZE51/61-2.4 module are obtained in a “clean noise” environment. Some basic recommendations must be followed:  Noisy electronic components (serial RS232, DC-DC Converter, Display, Ram, bus ,...) must be placed as far as possible from the ZE51/61-2.4 module.  Switching components circuits (especially RS-232/TTL interface circuit power supply) must be decoupled with a 100 µF tantalum capacitor. And the decoupling capacitor must be as close as possible to the noisy chip.

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 35 of 54 VI.2. Power supply decoupling on ZE51/61-2.4 module The power supply of ZE51/61-2.4 module must be nearby decoupled. A LC filter must be placed as close as possible to the radio module power supply pin, VDD . Symbols Reference Value Manufacturer L1 LQH31MN1R0K03 1µH Murata C1 GRM31CF51A226ZE01 22µF Murata C2 Ceramic SMD 25V 100nF Multiple Vdd C1 C2 Power Supply L1

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 36 of 54 VI.3. RF layout considerations Basic recommendations must be followed to achieve a good RF layout :  It is recommended to fill all unused PCB area around the module with ground plane, except in case of integrated antenna (no ground plane must be placed in front of the antenna and on the bottom side).  The radio module ground pin must be connected to solid ground plane.  If the ground plane is on the bottom side, a via (Metal hole) must be used in front of each ground pad. Especially J28 and J30 (RF Gnd) pins should be grounded via several holes to be located right next to the pins thus minimizing inductance and preventing mismatch and losses. Example of GND layout Top View (with and without integrated antenna)

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 37 of 54 VI.4. Antenna connection on Printed Circuit Boards Special care must be taken when connecting an antenna or a connector to the module. The RF output impedance is 50 ohms, so the strip between the pad and the antenna or connector must be 50 ohms following the tables below. Ground lines should be connected to the ground plane with as many vias as possible, but not too close to the signal line. PCB material PCB thickness H (mm) Coplanar line W (mm) Coplanar line G (mm) FR4 0.8 1 0.3 1.6 1 0.2 Table 1 : Values for double face PCB with ground plane around and under coplanar wave guide (recommended) PCB material PCB thickness H (mm) Coplanar line W (mm) Coplanar line G (mm) FR4 0.8 1 0.22 1.6 1 0.23 Table 2 : Values for simple face PCB with ground plane around coplanar wave guide (not recommended)

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 38 of 54 VI.5. ZE51/61-2.4 interfacing : Example of a full RS-232 connection between a PC or an Automat (PLC) and ZE51/61-2.4/SMD-WA

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 39 of 54 Example of a minimum PC connection with ZE51/61-2.4/SMD-IA .

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 40 of 54 Example for sensor connection with ZE51/61-2.4/SMD-IA.

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 41 of 54 CHAPTER VII. ANTENNA CONSIDERATIONS VII.1. Antenna recommendations ZE51/61-2.4 performances when used in a product are strongly dependent on the antenna type and its location. Particular cautions are required on the following points:  Use a good and efficient antenna designed for the 2.4 GHz band.  Antenna must be fixed in such a location that electronic noise cannot affect the performances. (Outside location is ideal if available).  Antenna directivity must be low (Omni directional antenna is usually the best choice). Recommended antenna specifications:  Frequency Band : 2440MHz +/- 100MHz  Radiation Pattern : Omni directional  Nominal Impedance: 50   VSWR: 1.5:1 max.  Gain: 0dBi  Polarization: Vertical

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 42 of 54 VII.2. Antenna matching Impedance matching can be required to deliver the maximum possible power from the module to the antenna and vice versa. This is typically accomplished by inserting a matching network into a circuit between the source and the load. This matching network must be established as close as possible to the ZE51/61 module. Hereafter an example of matching network used on the DIP interface board : Symbols Reference Package Value Comments Z1 * Resistor 0603 0 ohm ZE51-2.4/DIP-WA Monolithic Ceramic capacitor COG 0603 1.5 pF ZE61-2.4/DIP-WA Z2, Z3 * - - Not mounted ZE51-2.4/DIP-WA - - Not mounted ZE61-2.4/DIP-WA Track 1, Track 2 Coplanar Waveguide  Track 1 length (as short as possible)  Track 2 length (as short as possible) Plated holes Ground vias : drill of 0,35 mm pad of 0,75 mm Antenna connection Coaxial cable Pad: Hot point: 2*2mm Ground pad:2*4mm Or a specific SMA connector can be used. *: These values should be measured and optimized with a Network Analyzer. If no impedance matching is necessary, replace Z1 by a 0 ohm resistor, and let Z2 and Z3 not mounted. See the layouts §VI.3 to have an idea of the antenna matching implantation. Antenna Connection Z3 Z2 J29 RF Input/Output Z1 Track 1 Track 2

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 43 of 54 VII.3. Antenna types The following are the antenna examples that may be suitable for ZE51/61-2.4/SMD-WA applications. We distinguish two types of antenna:  External antenna (antenna is mounted outside of the device)  Embeddable antenna (antenna is integrated inside the device) VII.4. External antenna External antenna is recommended when the range performance is primordial. For example, for base stations and access points, where a better antenna gain may be required. ¼ Wave Monopole antenna: The ¼ Wave antenna is 3 cm long @ 2.4 Ghz. Shorter compensated antennas could be used as long as they are adapted to 2.4 GHz frequency. Best range may be achieved if the ¼ Wave antenna is placed perpendicular in the middle of a solid ground plane measuring at least 5 cm radius. In this case, the antenna should be connected to the module via some 50 ohm characteristic impedance coaxial cable. WARNING The metallic plane must be ideally under the antenna (balanced radiation). Never short-circuit the hot and cold pins! The installation directives are the following:  Solder the coaxial cable on the hot and ground pad antenna (of the ZE51/61-2.4 module.)  Fix the antenna on a metallic plane or on a metallic box with the metallic screw provided with the antenna.  If the ZE51/61-2.4 module is integrated in a plastic box, use a metal tape (copper) glued on the plastic side under the antenna. Coaxial hot and ground soldered on the ZE51 RF output Ground plane connected to coaxial ground ¼ Wave Antenna, connected to hot point.

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 44 of 54 Half Wave Dipole antenna: The ½ Wave Dipole antenna is around 6 cm long. In a ½ Wave Dipole antenna the metallic plane is replaced by a second ¼ Wave antenna balancing the radiation. Half wave monopole antenna typically offers a ground-independent design with favorable gain, excellent radiation pattern. It has a high impedance and requires an impedance-matching circuit (See paragraph IX.3) WARNING It is recommended to place the ½ wave dipole antenna away from all metallic object, which will detuned it. Particularity it is not recommended to place this type of antenna directly on a metallic box, but the antenna can be deported away through a 50 ohm coaxial cable. 1/2 wave antenna Core linked to hot point Coaxial hot and ground plug on the tiny RF output Box

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 45 of 54 VII.5. Embeddable antennas In this section you will find antennas designed to be directly attached to ZE51/61-2.4/SMD-WA module, inside the product casing. These antennas are only used in application where security, cosmetics, size or environmental issues make an external antenna impractical. This type of antenna is used when the integration factor becomes primordial (for mobile and handheld devices) to the range performances. The basic recommendations are:  The radio module must not be placed in a metallic casing or close to metallic devices.  The internal antenna must be far from noisy electronic. Ceramic antenna: Ceramic antenna is a SMD component to be mounted directly on the PCB. It is designed so that it resonates and be 50 ohms at the desired frequency. But we recommended to place an impedance-matching circuit (See paragraph VII.2). The place under and around the ceramic antenna must be free of any track or ground plane. (refer to the antenna constructor requirements). It usually has a hemispherical radiation pattern has described below. Miniaturized antenna: This type of antenna features a through-hole feedline to directly attach it to the PCB. This antenna acts like a ¼ wave antenna so that a minimum ground plane is required.

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 46 of 54 ZE51-2.4/SMD-IA: Integrated antenna: ZE51-2.4 module is available with an integrated chip antenna, allowing very compact integration for small space application. Radiation Pattern of ZE51-2.4/DIP board It is very important to avoid ground plane around and below the antenna, so ZE51-2.4/SMD-IA must be implemented as described in paragraph VI.3 and schematics VI.5.

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 47 of 54 ZE61-2.4/SMD-IA: Integrated antenna: ZE61-2.4 module is available with an integrated chip antenna, allowing very compact integration for small space application. Radiation Pattern of ZE61-2.4/DIP board It is very important to avoid ground plane around and below the antenna, so ZE61-2.4/SMD-IA must be implemented as described in paragraph VI.3 and schematics VI.5. XYZTest EURotationRADIATIONPATTERNHorizontalplane(X,Y)‐10,00‐5,000,005,0010,0015,0020,000153045607590105120135150165180195210225240255270285300315330345TestantennaVerti calTestantennaHorizontalEUTXYZTest antenna RotationRADIATIONPATTERNVerticalplane(Y,Z)‐10,00‐5,000,005,0010,0015,0020,000153045607590105120135150165180195210225240255270285300315330345TestantennaVerticalTestantennaHorizontal

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 48 of 54 CHAPTER VIII. ANNEXES VIII.1. Declaration of Conformity

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 49 of 54

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 50 of 54

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 51 of 54

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 52 of 54 VIII.2. Conformity Assessment Issues FCC/IC Modules ZE51/61 are FCC/IC approved as modules to be installed in other devices. If the final product after integration is intended for portable use, a new application and FCC/IC is required. FCC Notice The FCC notifies users that any changes or modifications made to this device that are not expressly approved by Telit Communications S.P.A. may void the user’s authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. - Consult the dealer or an experienced radio/TV technician for help. Wireless notice: This product emits radio frequency energy, but the radiated output power of this device is far below the FCC radio frequency exposure limits. This equipment complies with FCC RF radiation exposure limits forth for an uncontrolled environment. Nevertheless, the device should be used in such a manner that the potential for human contact with the antenna during normal operation is minimized. IC Notice This Class B digital apparatus complies with Canadian ICES-003, RSS-Gen and RSS-210. Cet appareil numérique de la classe B est conforme à la norme NMB-003, CNR-Gen et CNR-210 du Canada These radio transmitters ID: 5131A-ZE51 and 5131A-XE61 has been approved by Industry Canada to operate with the antenna types listed below with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. Les présent émetteures radio ID: 5131A-ZE51 e 5131A-XE61 a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés ci-dessous et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur. Fractus Micro Reach XtendTM Chip antenna Taoglas Dipole Stub Antenna gain 2 dBi 5 dBi Antenna impedance 50  50 

ZE51/61-2.4 RF Module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 53 of 54 Wireless notice This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. Label recommendations If neither FCC ID nor IC ID is visible when the module is installed inside another device, then the outside of the device into which the module is installed will display a label referring to the enclosed module by labelling the host device in this manner: “Contains FCC ID: RI7ZE51 and IC ID: 5131A -ZE51” or “Contains FCC ID: RI7XE61 and IC ID: 5131A –XE61” Safety recommendations The device must maintain a distance of at least 20 cm from the user’s body when transmitting. In case this requirement cannot be satisfied, the system integrator has to assess the final product against the SAR regulation. VIII.3. Examples of propagation attenuation Factor 433 MHz 868 MHz 2.4 GHz Attenuation Attenuation Attenuation Open office 0 dB 0 dB 0 dB Window < 1 dB 1 – 2 dB 3 dB Thin wall (plaster) 3 dB 3 – 4 dB 5 – 8 dB Medium wall (wood) 4 – 6 dB 5 – 8 dB 10 – 12 dB Thick wall (concrete) 5 – 8 dB 9 – 11 dB 15 – 20 dB Armoured wall (reinforced concrete) 10 – 12 dB 12 – 15 dB 20 – 25 dB Floor or ceiling 5 – 8 dB 9 – 11 dB 15 – 20 dB Armoured floor or ceiling 10 – 12 dB 12 – 15 dB 20 – 25 dB Rain and/or Fog 20 – 25 dB 25 – 30 dB * * = Attenuations increase along with the frequency. In some cases, it is therefore difficult to determine loss and attenuation value. Note = The table above is only indicative. The real values will depend on the installation environment itself.

ZE51/61-2.4 RF module User Guide 1VV0300868 Rev.4 – 23/06/2011 Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 54 of 54 VIII.4. Output power programming The results are measured on the ZE61-2.4/DIP interface with T = 25°C, Vdd = 3 V, 2440 Mhz, 50 ohm impedance if nothing else noted. TxPower register ATS202 Power (dBm) Current (dBm) Comments 0 20 175 Not recommended 1 19.5 160 Default value 2 19 145 3 18.5 135 4 17.5 124 5 16.5 113 6 15 102 7 14 96 8 12.5 89 9 11 84 10 9 80

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