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H24 Hardware User Guide

1. Figure 8 8 H24 Mounting Area The holes are used for mechanical mounting of H24 to the application board but also for grounding support Using conductive elements to install H24 significantly improves the overall grounding of the module and therefore improves the H24 performance and stability It is required to use screws or other mechanical elements to fasten H24 to the application board but it is highly recommended to use conductive elements to improve the module s performance The preferred mounting screw head types are e Allen head with a champer the best choice e Star head good e Philips head may cause damage to nearby components Page 85 of 88 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 9 Acronyms and Abbreviations je Beress O DCD Data Carrier Detect DCE Data Communication Equipment such as modems DCS DOC DSP DutaSeRedy Data Set Ready Data Terminal Equipment such as terminals PCs and so on DTMF Dual Tone MultiFrequency Data Terminal Ready DT X Discontinuous Transmission Enhanced Full Rate EGPRS Enhanced General Packet Radio Service EGSM Extended Global System for Mobile Communications Effective Isotropic Radiated Power EI Electromagnetic Compatibility Enhanced Observed Time Difference Electronic Point of Sale Effective Radiated Power Electrostatic Discharge European Telecommunication Standards Institute Federal Communications Commission
2. YCC IGN CTS_N RESET_N Figure 3 5 Power supplt turn on 3 6 3 Turning the H24 On Using ON_N The ON_N input signal is set high by an internal pull up resistor whenever a power supply is applied to H24 Therefore it is recommended to operate this signal using an open collector drain circuit connection Asserting the ON_N signal low for a minimum of 500 milliseconds 0 5 seconds and a maximum of 1 5 seconds will cause the H24 to turn on Asserting the ON_N signal low for more than 1 5 seconds may cause the H24 to interpret the signal as a power off command and turn off immediately after turning on VEC 5O0ms min ON_N RESET_N 4000715 2000Mms 3 6 4 3 6 9 3 6 6 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Turning the H24 On Using IGN The IGN input signal must be set low when not used To turn on H24 this signal must be asserted high for at least 8 seconds The IGN signal must remain high for the duration of the H24 operation H24 powers down when the IGN signal is returned to its low state VCC 8000ms min e T IGN RESET_N 3500ms 2000ms CTS_N Figure 3 7 Turning the H24 On Using IGN Turning the H24 Off There are several ways to turn the H24 off e Asserting the ON_N signal low for a minimum of 2 seconds e Setting the IGN signal low e Low power automatic shut down e AT command e Voltage exceeds 4 5V e Temperature at PMIC e
3. E 7 E G 25973 a e Z P f wi E Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 4 of 88 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Usage and Disclosure Restrictions License Agreements The software described in this document is the property of Telit and its licensors It is furnished by express license agreement only and may be used only in accordance with the terms of such an agreement Copyrighted Materials Software and documentation are copyrighted materials Making unauthorized copies 1s prohibited by law No part of the software or documentation may be reproduced transmitted transcribed stored in a retrieval system or translated into any language or computer language in any form or by any means without prior written permission of Telit High Risk Materials Components units or third party products used in the product described herein are NOT fault tolerant and are NOT designed manufactured or intended for use as on line control equipment in the following hazardous environments requiring fail safe controls the operation of Nuclear Facilities Aircraft Navigation or Aircraft Communication Systems Air Traffic Control Life Support or Weapons Systems High Risk Activities Telit and its supplier s specifically disclaim any expressed or implied warranty of fitness for such High Risk Activities Trademarks T
4. The following guidelines should be followed e Make sure that the antenna or antenna assembly matches the Antenna Interface Specifications e Use low loss RF cable and connectors keeping cable runs to a minimum 0 1 Diversity 9 1 1 RX Diversity Overview The usage of diversity antenna has a great advantage of improving receiver sensitivity H24 HSPA series offers antenna diversity feature to be used in the UMTS HSPA frequency bands The receiver sensitivity improvement is achieved by e Fading effect improvement While one antenna is in fade the other antenna is probably not s Better Noise Figure Two antennas will receive more signal power then one antenna and while combining two signals the uncorrelated noise will be reduced e Interference rejection Combining the received signal with weighting selected so that correlated interfering signals picked up on both antennas tend to cancel each other out 5 1 2 Performance Typical 4dB sensitivity improvement is shown while the H24 is in conducted lab conditions Base station is connected with RF cables to both RX main port and RX diversity port due to diversity port usage measured in all H24 UMTS supported bands 1 s Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 63 of 88 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 9 1 3 Diversity antenna requirements e Diversity Rx Only a
5. wireless solutions Teli H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Making machines talk H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 APPLICABILITY TABLE PRODUCT n soll de i gt i ch x A 7 i sane F si fs a x n 4 J 4 n J b P Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 2 of 88 d e Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE Notice While reasonable efforts have been made to assure the accuracy of this document Telit assumes no liability resulting from any inaccuracies or omissions in this document or from use of the information obtained herein The information in this document has been carefully checked and is believed to be entirely reliable However no responsibility is assumed for inaccuracies or omissions Telit reserves the right to make changes to any products described herein and reserves the right to revise this document and to make changes from time to time in content hereof with no obligation to notify any person of revisions or changes Telit does not assume any liability arising out of the application or use of any product software or circuit described herein neither does it convey license under its patent rights or the rights of others It is pos
6. La ik P Reproduction Green without written authorization from Telit Communications S p A All Rights Reserved Page 57 of 88 4 3 4 4 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 IMPORTANT The VREF regulator is powered from the H24 s main power supply and therefore any current sourced through this regulator originates from the H24 VCC supply The overall VCC current consumed by H24 is directly affected by the VREF operation The H24 current consumption rises with respect to the current sourced through VREF The VREF regulator incorporates 3 operating modes that are controlled by the AT MVREF command These modes define the regulator operating state relative to the H24 s operating mode OFF Mode In this mode the VREF regulator is disabled and its output drops to OV regardless of the H24 operating state Sleep Mode The 300 mA rated linear regulator offers a low power mode to reduce its quiescent current during the module s sleep mode This mode uses reduced current in the feedback loop causing degraded performance PSRR output current capability etc In fact if the load increases beyond 1 mA the output voltage can go out of specification This mode should only be used when the module is in its sleep mode i lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 4 5 Active Mode In this mode the VREF regulator is always fully active while H24 is operating re
7. None and will not be able to wake H24 through RX activity sending data e Sleep mode over UART enabled e UART HW flow control enabled e Airplane mode enabled AT CFUN 0 or AT CFUN 4 In this case there is no DRX and CTS is not rising 3 7 3 3 7 4 3 7 4 1 2A 8 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 seep Idle H24 Mode Disabled Enabled CTS N Figure 3 10 CTS Signal During Sleep Mode CTS Signal During Sleep Mode The periodical enabling and disabling of the CTS_N signal during low power mode can be controlled by the AT MSCTS command Setting AT MSCTS 0 permanently disables the serial interface during low power mode even during a network page by H24 The CTS_N signal is disabled and therefore the serial interfaces are blocked Terminating Low Power Mode Terminating the low power mode or wake up is defined as the transition of the H24 operating state from Sleep mode to Idle mode There are several ways using UART CTS_N signal WKUPI_N line or UART RX line interrupt to wake up H24 from low power mode as described below IMPORTANT During power saving mode the H24 internal clocks and circuits are disabled in order to minimize power consumption When terminating the power saving mode and switching to Idle mode H24 requires a minimal delay time to reactivate and stabilize its internal circuits before it can respond to application data This delay is typical
8. Table 7 1 Maximum Ratings 2 wae Reproduction Green without written aithorizatiot from Telit Communications S p A All Rights Reserved Page 69 of 88 i lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 WARNING It is not recommended to connect the ignition pin directly to the car s ignition wire without adequate protection Tad Environmental Specifications The following table gives the environmental operating conditions of the H24 module WARNING Exceeding the values may result in permanent damage to the module Operating 30 65 C Temperature Restricted Operating 30 85 SC Temperature At antenna connector Contact Air At interface connector Table 7 2 Environmental Ratings 7 3 Application Interface Specifications The following table summarizes the DC electrical specifications of the application interface connector signals IMPORTANT Interface signals that are not used by the customer application must be left unconnected H24 incorporates the necessary internal circuitry to keep unconnected signal in their default state Do not connect any components to or apply any voltage on signals that are not used by the application Signals that are defined as Do Not Use or DNU must remain externally unconnected in any case These signals are reserved for future use SC La ik P Reproduction Green without written aithorizatiot from Telit Communications S p
9. U S Full Rate Full Type Approval GSM Certification Forum Page 86 of 88 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 General Purpose Input Output HSDPA IC Low noise Amplifier vc MT OEM PCR cl PCM Pulse Code Modulation PCS Personal Communication System also known as GSM 1900 Pull Down GPIO GPRS GSM PDA PDU PLL Personal Data Assistant Packet Data Unit Phase locked Loop Packet Data Unit S Phase locked Loop North America RI Ringindcator O SAR Transmitter Radiated Power UART Universal Asynchronous Receiver Transmitter Universal Serial Bus USSD Unstructured Supplementary Services Data Voltage Common Collector VSWR Voltage Standing Wave Ratio b pra b ah se Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 87 of 88 Te lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 WCDMA Wideband Code Division Multiple Access Table 9 1 List of acronyms 9 1 Document History Revision Date Changes H 2010 03 23 Page 88 of 88
10. 4 om 2 i d d d 4 D Seege Ee Ef a i Real E y Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 24 of 88 iy Maximum Tx output power Connectors Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 GSM 850 GSM 900 Power class 4 33 2dBm DCS 1800 PCS 1900 Power class 1 30 2 dBm GSM 850 GSM 900 GPRS 4 slot up 28 2 dBm DCS 1800 PCS 1900 GPRS 4 slot up 25 2 dBm GSM 850 GSM 900 EGPRS 4 slot up 22 2 dBm DCS 1800 PCS 1900 EGPRS 4 slot up 21 2 dBm WCDMA HSDPA HSUPA B1 B2 B4 B5 B8 Power class 3 24 dBm 1 3 dB Single 70 pin board to board RF MMCX 2 RF UFL Connectors Diversity GPS SIM Card External USIM connectivity 1 8V 3 0 V Serial Ports UART BR up to 4M bps RS232 supported USB USB High Speed device specifications Rev 2 0 Data Features EGPRS model dependant SMS Multi slot class 12 4 Rx 4 Tx 5 Sum Max air Downlink BR 80 kbps Coding scheme CS1 CS4 Class B Multi slot class 12 Max air Downlink BR 236 kbps Coding scheme MCS1 MCS9 Class B Max BR 14 4 kbps MO MT Text and PDU modes Cell broadcast Digital audio H24 PCM bus can be set also as Slave or Continues mode Clock 2048 kHz frame sync clock 8 kHz Page 25 of 88 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Differential analog audio line
11. A All Rights Reserved Page 70 of 88 lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 The following table gives a brief description of the 70 pins connector for quick integration GND 1 2 GND ale eles wel 1 vec RTS_N olio USB_VBUS RXD_N USB_DP DSR_N USB_DN CTS_N DCD_N DTR_N PCM_DOUT TXD_N PCM_CLK RIN PCM_FS RA PA VREF GPIO1 sile lo sulla RTS2 GPIO4 CIS2 35 36 GPIOS T E _ EN TCX Wm i a 4 A ap i aA F 3 d em D e na n i a Re gt l 0073 Gay i LE H i R e La n K eg LI Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 71 of 88 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 HDST_INT_N Chip SIM reset sano so oo no were os os we ser 67 66 incon see 60 m0 con Signal NERE Active Internal N Name Description I O WL PU PD Parameter Conditions Min Typ Max Units VCC 36V See forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 72 of 88 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 GPS ANT Do not I POWER connect N N VREF Reference regulator output H24 wakeup Vin lours 2mA 2 0 2 6 2 9 t V inpu IL 0 0 4 Host wakeup Vou 2 15 26 29 output VoL lours 2mA 0 0 45 Reset signal Vou E 2 15 26 2 9 tput outpu 0 0 45 On Off swi
12. Developer Board set up e Technical questions e Configuration questions problems e Technical operating problems e Need documentation For general contact technical support to report documentation errors and to order manuals contact Telit Technical Support Center TTSC at TS EMEA 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 ph as past Ne oY En oe 7 i A E BI Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 13 of 88 e Be e Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 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 1 4 Required Query Information Every new call problem report directly from a Direct Customer or from a distributor should be directed to the help desk email address noted above It is recommended to report each individual issue in a separate
13. Hardware User Guide 1VV0300918 Rev 0 2011 04 06 8 4 U FL Connector Specifications The H24 uses a standard U FL receptacle connector for the radio interface The following picture shows the U FL connector dimensions OUTER CONTACT DUTER_ CONTACT CENTER CONTACT 6220 05 de cs H Mr HA n KA Figure 8 6 UEL Connector Dimensions Characteristic Impedance 50 Ohms Frequency Range DC to 6 GHz VSWR mated pair 1 30 max DC to 3 GHz 1 40 max 3 to 6 GHz cable dependent Insertion Loss connectors only 0 24 dB max DC to 6 GHz Rated voltage 60 VAC rms standard recept Styles A B Dielectric Withstanding Voltage 200 VAC 50 Hz for 1 min at sea level Insulation Resistance 500 Megohms min Contact Resistance connectors only 20 milliohms max Center 10 milliohms max Outer Plug Page 83 of 88 8 4 1 8 9 Z Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 10 milliohms max Outer Receptacle Durability 30 cycles standard recept Styles A B Disengagement Force 2N min perpendicular 4N min orthogonal Center Contact Retention force 0 15N min Tape Reel Packaging receptacle 12mm carrier per EIA 481 Operating Temperature 40 C to 90 C Mating Connector The RF mating connector should be a standard U FL plug connector or cable assembly which corresponds to the H24 U FL connector specifications Only Hirose U FL mating cable may be mated with H24 A fami
14. OFF Power Key Woo Power Supply Figure 3 1 H24 block diagram ey P i d gt i i f i d e f h Aby j e i A j j e e emt n J a Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 28 of 88 i lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 The H24 consists of the following blocks 3 1 1 Digital Block Micro controller Unit MCU for system and user code execution Digital Signal Processor DSP for voice and data processing Serial communications interfaces e USB driver interface e UARTI e UART2 e DC e SIM card Digital audio PCM bus interface General purpose IO signals 3 1 2 Analog Block e Power Management IC PMIC e Internal regulators e 1 external regulator for customer use e Analog audio interface management e Speaker microphone e Alert speaker e Headset e General purpose and dedicated A D signals e A D e Voltage sensor e Temperature sensor e Real Time Clock RTC subsystem 3 1 3 RF Transceiver Block The following figures give a detailed RF block diagram Page 29 of 88 H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 PA WCDMA i COUPLER B5850 U8 Figure 3 2 GSM and WCDMA Main Connector Block Diagram DIVERSITY RX DIVERSITY INPUTS Figure 3 3 WCDMA Diversity Circuitry Block Diagram lit H24 Hardware
15. User Guide 1VV0300918 Rev 0 2011 04 06 3 1 4 WCDMA Transceiver e Transceiver includes modulator receiver LNAs Mixers VCOs I Q outputs and buffers for all WCDMA bands e Three RF Power Amplifiers for B1 2100 or B4 1700 B2 1900 amp B5 850 or B8 900 e Three couplers for feedback into the Modulator for each band e RF Switch SP9T for selecting corrected path to and from main MMCX connector e Receive path is inside PA via internal duplexer into the Transceiver e Internal LNAs for all WCDMA bands inside Transceiver e External switch RF SPDT from WB1900 amp WB2100 LNA s output into one receiver s differential input e Diversity path From Diversity UFL connector via SP3T into SAW filter for e W2100 W1700 W1900 amp W850 W900 fed into secondary receivers inputs inside the Transceiver 3 2 Operating Modes H24 incorporates several operating modes Each operating mode is different in the active features and interfaces The following table summarizes the general characteristics of the H24 operating modes and provides general guidelines for operation Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Description VCC supply is disconnected Off Mode Valid VCC supply RESET_N signal is enabled low Idle Mode RESET_N signal is disabled high CTS_N and DSR_N signals are enabled low Sleep Mode RESET_N signal is high CTS_N signal is
16. contacts must be used for proper operation Signal Name Description GND Main ground connection for H24 module DC supply input for H24 module Vin 3 3 V to 4 2 V Imax 2 A during transmit bursts Maximum rise time 8mS AC ripple 3 Table 3 1 Power Supply Signals IMPORTANT Do not operate the H24 out of its electrical or environmental limits Refer to the specifications chapter for details of these limits The H24 does not incorporate a hard reset capability The user should implement a power removal mechanism for hard resetting the unit when needed This action will be performed with care as it could cause damage to the H24 Power Supply Design Special care must be taken when designing the power supply of the H24 The single external DC power source indirectly supplies all the digital and analog interfaces but also directly Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 32 of 88 elit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 supplies the RF power amplifier PA Therefore any degradation in the power supply performance due to losses noises or transients will directly affect the H24 performance The burst mode operation of the GSM transmission and reception draws instantaneous current surges from the power supply which causes temporary voltage drops of the power supply level The transmission bursts consume the most
17. devices in accordance with CFR Title 47 Part 2 and Part 15 This includes MPE calculation As the H24 modem is not a standalone transceiver but is an integrated module the H24 cannot be tested by itself for EME certification It is however the integrator s responsibility to have the completed device tested for EME certification CAUTION Unauthorized repairs or modifications could result in permanent damage to the equipment and void your warranty and your authority to operate this device under Part 15 of the FCC Rules 1 9 Regulatory Statement Safety The following safety precautions must be observed during all phases of the operation usage service or repair of any cellular terminal or mobile incorporating the H24 module Manufacturers of the cellular terminal are advised to convey the following safety information to users and operating personnel and to incorporate these guidelines into all manuals supplied with the product Failure to comply with these precautions violates safety standards of design manufacture and intended use of the product Telit assumes no liability for customer failure to comply with these precautions e H24 module should not be assembled when voltage is supplied to the 70 pin connector s H24 module must be operated at the voltages described in the technical documentation e H24 module must not be mechanically nor electrically changed Use of connectors should follow the guidance of the technical documentatio
18. their state after the ATS102 delay time has expired e ATS100 Defines the application minimal wakeup duration in seconds for a single wakeup event This time definition 1s required to avoid frequent unnecessary wakeup 1 L i Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 59 of 88 elit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 events and consequent ATS102 delays The application may return to low power mode after the serial interface has been inactive for the duration set by ATS100 This duration is measured from the last data sent or received on the serial interface F ATS102 ATS100 a l Application SEP pplication d won 00 0 Am Figure 4 1 WKUPO_N Operation The following guidelines apply to the wakeup out mechanism e H24 will set the WKUPO_N signal low to indicate that in has data to send through the serial interface e H24 will start sending the data to the application after the delay defined by ATS102 e The WKUPO_N signal will remain low while data is being sent to the host application e The host application should keep its serial interface active and not switch to low power mode while the WKUPO_N signal is low e H24 will set the WKUPO_N signal high when it has completed sending the data e The application serial interface must stay active and not switch to low power mode for the dura
19. 04 06 This form of power down is not recommended for regular use since the unexpected power loss may result in loss of data Turning the H24 off Using AT MPWRDN The AT MPWRDN command initiates a H24 power down even if the H24 was powered on by IGN This command emulates the ON_N signal operation for power off Low Power Mode The H24 incorporates an optional low power mode called Sleep Mode in which it operates in minimum functionality and therefore draws significantly less current During low power mode the H24 network connection is not lost H24 continues to monitor the GSM network constantly for any incoming calls or data During low power mode most of the H24 interface signals are inactive and are kept in their previous state prior to activating low power mode To save power the H24 internal Main clock and some of its circuits are shut down and therefore serial communications is limited Activating Low Power Mode UART By default the H24 powers on in Idle mode In this mode the H24 interfaces and features are functional and the module is fully active Low power mode is controlled by the AT MSLEEP amp ATS24 commands The command AT MSLEEP 1 enable Sleep Mode AT MSLEEP 0 disable Sleep Mode The value of S24 command determines the inactive state duration required by H24 in seconds after which H24 will enter sleep mode For example ATS24 1 activates low power mode after 1 second of UART inactivity ATS24 5 ac
20. 0918 Rev 0 2011 04 06 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 and ICES 003 for Industry Canada 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 e Reorient or relocate the receiving antenna e Increase the separation between the equipment and the receiver e Connect the equipment to an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help 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 2 This device must accept any interference received including interference that may cause undesired operation 1 11 Precautions Interface connector and some of the mo
21. 1 04 06 8 2 1 Mating Connector The mating connector incorporates the same electrical and mechanical characteristics as the corresponding H24 interface connector and is described in table 4 2 The following picture provides a reference drawing of the mating connector mechanical dimensions TO il FETT iH AAR RRR 2 EU Pane HU eae RU eee RE al l EU 2 92991 0708 3 0mm Figure 8 3 Mating Connector Dimensions For more information on the H24 mating connector please refer to the Molex web site at http www molex com molex index jsp 8 3 MMCX Connector Specifications The H24 uses a standard MMCX receptacle connector for the radio interface The following picture shows the MMCX connector dimensions gt eg s dat ee ee 0 Er lt ua _ Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 80 of 88 Te lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 goni a 173640 232650 Figure 8 4 MMCX Connector Dimensions Rated Voltage 335 VRMS Impedance 50 Q Contact Resistance 5 mQ center contact 2 5 mQ outer contact Insulation Resistance 1000 MQ Insertion Force 3 4 lbs maximum Withdrawal Force 4 5 lbs maximum Contact Retention Force 4 lbs maximum Durability 500 mated cycles maximum 8 3 1 Mating Connector The RF mating connector should be a standard MMCX plug connect
22. 3 1 Remember safety depends ON YOU 20 Whee LUNATA eege 20 1 13 3 Do not operate in an explosive atmosphere i 20 113 4 Donotservice oradj stalone EE 20 1 13 5 Keep away from live SC Le ONS ia 20 1 13 6 Do not substitute parts or modify equipment 20 1 13 7 Dangerous procedure Wal e e CN 21 1 14 Caring for the Enwronment eee 21 1 14 1 Disposal of Telit equipment in EU COUNtries 21 1 14 2 Disposal of Telit equipment In NON EU COUNTIES cceteeteeeeeeeeeeeeeeeeeeeeeeeeeeeaaaaaeas 21 2 General Product Description ii 23 CSR eelere 24 e amp a x 2 La N gt pee d D em ay bi EE a b WH 7 i ae k f gt i wi f f Pat 4 CU 4 fA dp e nd st d i f v E a 5 d i os f E a Li Ar T i S a n Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 7 of 88 Z Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 3 Hardware Interface Uescrpton iii 28 Ol Architecture Uver vie W A nen ee 28 Se e IE 29 3 1 2 Analog E ele 29 ge REINS CVET ge 29 3 1 4 WCDMA Transcelver iii 31 di eege te ee iaia 31 7 POWER UPPI rn 32 JG Power s pply DESIO II INN AO I en 32 coi CURFRRRCONSUT HO iz AIAR ANTA 34 3 6 EE Ee ir spannu haie i Pa e EREA EREE EEEREN SEEE NEER 37 3 6 1 Turning the H24 On uo 37 Soe POWT SU Dee Een eli 37 3 6 3 Turning t
23. 3 18 Voice band Mode PCM Bus Coding Format i lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 4 Controls and Indicators Interface The H24 incorporates several interface signals for controlling and monitoring the module s operation The following paragraphs describe these signals and their operation The following table gives a description of the controls and indicators signals H24 system reset output indicator When high H24 is operating 2 6V regulated output Supplies external circuits up to 300mA Host application wake up signal indicator Network status Network status indicator indicator GPRS GSM WCDMA 28 30 32 34 36 GPIO 1 8 General purpose IO signals for 38 40 42 customer use Table 4 1 Controls and indicators 4 1 Reset The RESET_N output signal indicates the H24 s operating status This signal is set high after power up when H24 is operating It is set low when H24 is powered off When the RESET_N signal is low the H24 interface signals are disabled and do not represent any valid data or state Furthermore any input signals connected to the H24 interface must be disabled tri state or set low when RESET_N 1s low 4 2 VREF Reference Regulator The H24 incorporates a regulated voltage output VREF The regulator provides a 2 6V output for use by the customer application This regulator can source up to 300 mA of current to power any external digital circuits SC
24. 3 3 INTERFACE TTC KR T l KE 11 TABLE 9 1 H24 INTERFACE CONNECTOR OPTIONS eege ege eege Eed 79 TABLE E LSTOFACRONI MS picor a a a rer 88 List of figures RIGURE 4 2 BEOCK DISGRANE iaia iii daria parodie oi 28 FIGURE 4 2 GSM AND WCDMA MAIN CONNECTOR BLOCK DIAGRAM ii 30 FIGURE 4 4 TRANSMISSION POWER DROPS iride 33 FIGURE 4 5 POWER SUPPE TF TURN ON rrenen an 38 FIGURE 2 6 FIGURE 4 6 TURNING THE H24 ON USING ON Ni 38 FIGURE 4 7 TURNING THE H24 ON USING eeneg 39 FIGURE 4 5 TURNING THE H24 OFF USING ON tege 40 FIGURE 4 9 TURNING THE M24 OFF USING eege 40 FIGURE 4 10 CTS SIGNAL DURING SLEEP MODE 43 FIGURE 4 11 SERIAL INTERFACE DATA ccssszssncatencotnacennsontnaansananoaaapimanagasaamannagndaananseasannanecaeageanadaauepaanoaneanamaoaeyaens 45 FIGURE 4 12 UARTI INTERFACE hee EE 47 FIGURE 4 13 USB INTERFACE SIGNALS eege EAR sail eni rieti 48 FIGURE 4 14 H24 AUDIO INTERFACE E 51 FIGURE 4 15 HANDSET INTERFACE E 52 FIGURE 4 16 HEADSET INTERFACE ee 53 FIGURE 4 17 EXTERNAL SPEARER aces aco scspna sonatas anmsanoncaanesenamsensseannananatpnedee seananenatocadassanaceanssncateaatns i 53 FIGURE 4 18 VOICE BAND MODE PCM BUS CODING FORMAT 56 FIGURE F WRUPO N OPERATION D 60 RIGURE 2 TAEN NOPFERA TON gori RI RA ONE 6l FIGURE 7 1 GPS ANTENNA CONNECTOR LOCATION iii 68 FIGURE 9 1 H24 MECHANICAL CHARACTERISTICS ui 78 FIGURE 9 2 H24 INTERFACE CONNEC RE 79 FIGURE 9 3 MATING CONNECEOR DIMENSIONS iero 80 FIGURE 9 4 MMCX C
25. 51 010 1 v6 7 0 Mobile Station MS conformance specification Part 1 Conformance specification 3GPP TS 22 004 v6 0 0 General on supplementary services 3GPP TS 23 090 v6 1 0 Unstructured Supplementary Service Data USSD Stage 2 3GPP TS 24 008 v6 19 Mobile radio interface Layer 3 specification ITU T V 25ter United States Federal Communications Commission Code of Federal Regulations 47CFR part 2 sub part J American National Standards Institute ANSI Institute of Electrical and Electronic Engineers IEEE C95 1 1992 Institute of Electrical and Electronic Engineers IEEE C95 1 1999 Edition International Commission on Non Ionizing Radiation Protection ICNIRP 1998 Ministry of Health Canada Safety Code 6 Limits of Human Exposure to Radiofrequency Electromagnetic Fields in the Frequency Range from 3 kHz to 300 GHz 1999 Australian Communications Authority Radiocommunications Electromagnetic Radiation Human Exposure Standard 2003 ANATEL Brasil Regulatory Authority Resolution 256 April 11 2001 additional requirements for SMR cellular and PCS product certification NOTE H24 is 3GPP release 6 device 1 13 1 13 1 1 13 2 1 13 3 1 13 4 1 13 5 1 13 6 2 i elit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 General Safety Remember safety depends on you The following general safety precautions must be observed during all phases of operation service a
26. ELIT and the Stylized T Logo are registered in the US Patent amp Trademark Office All other product or service names are the property of their respective owners Copyright 2011 Telit gt a a a D D n j J D Pi 3 cu ga TRIS k q P eni 5 eh t VM p L et Lat in _ gt ot 20 f s a i d e 5 i 8 1 i f f ni d rt eee eee d l nen 4 n i f i gu e Ko l i resine _B Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 5 of 88 H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 A h P l D 4 4 e P e e ef i 7 e E j 8 j e palace d Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 6 of 88 Z Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Contents lk IDIFOGUCHON rn 13 CE SCORTARE RANA 13 EE 13 1 3 Contact Information Support 13 1 4 Required Query Information 14 lio Document ee EE tele EE 15 1 6 Text CONVENUONS Geet geed deeg 15 1 7 Related DOCUMENTS 19 1 8 Regulatory Requirements 16 1 9 Regulatory Statement IGatetvl 16 1 10 POG Notice to Ee 16 NNEN 17 1 12 Antenna and Transmission Safety Hrecautons 17 kele E OD CI AIOM asa san deaadeaenaanieceeacees 17 1122 Antenna RV SIU A E ELE 18 1 12 3 Section 15 203 Antenna Regurements 18 EA Sand E 19 e EE 20 1 1
27. Exiting of Low Power Mode Handled by suspend resume mechanism Real Time Clock H24 incorporates a Real Time Clock RTC mechanism that performs time keeping The RTC subsystem is embedded in the PMIC and operates in all of the H24 operating modes Off Idle Sleep as long as power is supplied above the minimum operating level The H24 time and date can be set using the following methods e Automatically retrieved from the GSM network In case H24 is operated in a GSM network that supports automatic time zone updating it will update the RTC with the local time and date upon connection to the network The RTC will continue to keep the time from that point Z Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 e Using the AT CCLK command Setting the time and date manually by this AT commands overrides the automatic network update Once the time and date are manually updated the RTC timer will keep the time and date synchronized regardless of the H24 operating state When the power supply is disconnected from H24 the RTC timer will reset and the current time and date will be lost On the next H24 power up the time and date will need to be set again automatically or manually Nevertheless there is ability to keep the RTC working while main power supply is off This can be done by supplying the RTC an external power of 3V to a dedicated pin in the microprocessor This dedicated pin is called Vcoin When the mai
28. ONNECTOR DIMENSIONS priori EE SI FIGURE 9 5 OPTIONAL MMCX CABLE ASSEMBLY Mo eecrrrrerrerenreerieeeo size ris ien ze rie zen reo nice ren ice nie neo rioniezeo rioni 82 FIGURE 9 6 U FL CONNECITORDIME SION Lala 83 FIGURE 9 7 U FLEMA TING CONNEC TK RT 84 FIGURE 9 5 M4 MOUNTING AREA ie 85 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 1 Introduction 1 1 Scope This manual provides the electrical mechanical and environmental requirements for properly integrating the H24 module in a host application This manual gives a complete set of hardware features and functions that may be provided by H24 The availability of any feature or function which is described in this manual depends on the hardware revision and software version of a specific H24 model The parameters and values provided in this manual are defined under typical conditions These values may vary when subject to different conditions such as SW version network status application settings and environmental conditions 1 2 Audience This manual is intended for all members of the integration team who are responsible for integrating the H24 module into the host OEM device including representatives from hardware software and RF engineering disciplines 1 3 Contact Information Support This section provides contact information for any possible queries that may arise for example e Have questions e Having trouble getting the
29. OT T O RE 54 ilo Digital AUdio INEGI AC eee 54 5 103 VOICE Da ICO EE D5 4 Controls and Indicators Interface na 57 Al Reset 57 di WIRE Ree TOCE 18 CG UNG OT iii 57 4 3 OFF Mode ee 58 e SEET ModE ee ee ee A E E AREA AER 58 4 5 Active Mode 59 EE Te RR tae eee ee EA AARE 99 4 7 Network Connection Detection 60 AR Transmission Indicator senn EKER EKO ME ISDN KiNNS 61 4 9 General e CT EN 61 5 Antenna Interface n 62 del DVE AA A 63 5 1 1 RX Diversity OVErVIEW 63 5 1 2 Performance iii 63 9 1 3 Diversity antenna requirements EE 64 6 GPS and Antenna Interface 65 6 1 GPS Receiver Hertormance aurra anano ranan n raan AR rannan eraann enean 65 6 1 1 Time To First Fix TTFF nanana nananana E ALAARE ERARA EAEE a aaan anana nn 65 ARIE 65 Olio ROSI Ce OTC ra E 65 6 1 4 POLO COM SUR Ol EE 66 6 1 5 Module Current Consumption iii 66 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 6 1 6 GPS Active Antenna Supply CIPCUIE 2c ici cccccasssacecedecececacecessiedadacasasesacadadedecedacededsisdadecadansans 66 Cela Eu TER e Ol e ee E 68 6 1 8 OPS Antenna ee 68 7 Electrical and Environmental Specifications ii 69 7 1 Absolute MAXIMUM Rating EE 69 7 2 Environmental GEIER 70 7 3 Application Interface Specifications 70 8 M
30. T amp K4 command the application can work in Hardware Flow Control accumulate the data in its buffer and send it to the module when the CTS is Enabled Note this method of operation works without using AT MSCTS 0 command Incoming Network Data During low power mode H24 continues monitoring the network GSM or UMTS for any incoming data message or voice calls When H24 receives an indication from the network that an incoming voice call message or data is available it automatically wakes up from low power mode to alert the application When H24 has completed to process all the tasks related to the incoming data it will automatically return to low power mode according to the ATS24 settings Depending on the type of network indication and the application settings H24 may operate in several methods which are configurable by AT commands to alert the application of the incoming data e Enable the WKUPO_N signal to wake up the application from low power by setting ATS100 to value bigger than zero ATS102 can be 0 but is 30ms by default for example ATS102 30 will start WKUPO_N signal 30 millisecond before data send out from UART to Host e Send data to the application over the serial interface e Enable the serial interface s Ring Indicator RI_N signal Data on the Serial interface While H24 is temporarily awake in Idle mode data may be transmitted on the serial interface In case data is being transmitted in any direction H24 wil
31. ating environment Warning example WARNING Dangerous voltages capable of causing death are present in this equipment Use extreme caution when handling testing and adjusting Caring for the Environment The following information is provided to enable regulatory compliance with the European Union EU Directive 2002 96 EC Waste Electrical and Electronic Equipment WEEE when using Telit equipment in EU countries Disposal of Telit equipment in EU countries Please do not dispose of Telit equipment in landfill sites In the EU Telit in conjunction with a recycling partner will ensure that equipment is collected and recycled according to the requirements of EU environmental law Please contact the Customer Network Resolution Center CNRC for assistance The 24 hour telephone numbers are listed at http www telit com Select Customer Network Resolution Center contact information Alternatively if you do not have access to CNRC or the internet contact the Local Telit Office Disposal of Telit equipment in non EU countries In non EU countries dispose of Telit equipment in accordance with national and regional regulations Turkey Limitation of Liability Te lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 The Products are not designed intended or authorized for use as components in systems intended for surgical implant into the body in other applications intended to support or sustain life f
32. be set low for acknowledge the H24 that eSIM is connected e Chip SIM reset pin 56 this pin is dedicated for reseting the eSIM In case that the eSIM is incorporated short circuit this pin to pin 44 SIM_RST_N Audio Interface The H24 audio interface supports several audio devices and operating modes The audio interface s operating modes active devices amplification levels and speech processing algorithms are fully controlled by the host application through advanced programming options and a versatile AT commands set The H24 supports the following audio devices e Two single ended Differential and mono analog microphone inputs for use in a variety of modes e Differential mono analog speaker output e Differential mono analog alert output Amplified to 1W e Single ended mono analog headset output e A digital serial interface using PCM coding e Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 All the above analog audio paths with the interface to the 70 pin connector are shown in the following figure 70 pin conn ALERT P ALERT_N Figure 3 14 H24 Audio Interface 3 13 Handset Interface Typical handset interfaces are shown in the following figure The earphone output pins are connected directly to the handset s earphone with 2 bypass capacitors connected to ground The capacitance is selected de pending on the design typically less than 100 pF The output power for the differen
33. disabled CSD call or GPRS EGPRS RESET_N signal is high TXEN_N signal is toggling Features The H24 is Off Any signals connected to the interface connector must be set low or tri state The H24 Interfaces are Off Only the internal RTC timer is operating Any signals connected to the interface connector must be set low or tri stated The H24 is fully active registered to the GSM network and ready to communicate This is the default power up mode The H24 is in low power mode The application interfaces are disabled but H24 continues to monitor the GSM network A GSM voice or data call is in progress When the call terminates H24 returns to the last operating state Idle or Sleep m e E Page 31 of 88 3 4 i lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Description Features CSD call or RESET_N signal is high A GSM voice or data call is in progress WCDMA HSPA TXEN_N signal is toggling When the call terminates H24 returns to the data last operating state Idle or Sleep NOTE For MCONN 2 CTS_N is not active disabled Power Supply The H24 power supply must be a single external DC voltage source of 3 3V to 4 2V The power supply must be able to sustain the voltage level during a GSM transmit burst current surge which may reach 2 0A The H24 interface connector has 8 contacts for the main power supply as described in the following table All these
34. dule circuits are not shielded Be sure to take appropriate precautionary measures in order to avoid ESD while handling the module ESD can damage the H24 modules Integrators need to design ESD protection on all external interfaces 1 12 Antenna and Transmission Safety Precautions 1 12 1 User Operation Do not operate your unit when a person is within 8 inches 20 centimeters of the antenna A person or object within 8 inches 20 centimeters of the antenna could impair call quality and may cause the phone to operate at a higher power level than necessary IMPORTANT The unit must be installed in a manner that provides a minimum separation distance of 20 cm or more between the antenna and persons and must not be co located or operate in conjunction with any other antenna or transmitter to satisfy FCC RF exposure requirements for mobile transmitting devices To comply with the FCC RF exposure limits and satisfy the categorical exclusion requirements for mobile transmitters the requirements described in the following section must be met GEI en 1 E Le Pi PAST 8 Li E 4 f E lt D s e R E F 4 2 n gt e x d d Sa d i j DA Gay a TE P e ra i M gt ri J Fe Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 17 of 88 elit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 1 12 2 Antenna Installat
35. e eSIM embedded SIM Refer to Embedded SIM External SIM Connection The following table details the SIM interface signals Connected Interruptible to 70 pin Table 3 4 SIM Interface Signals SIM Design Guidelines The SIM interface and signals design is extremely important for proper operation of H24 and the SIM card There are several design guidelines that must be followed to achieve a robust and stable design that meets the required standards and regulations e Using the SIM detection signal SIM_PD_N is mandatory in case the SIM card is accessible to the user and may be removed during H24 operation To avoid any damage to the SIM or H24 the SIM interface signals must be deactivated before the SIM card contacts are mechanically removed from the SIM tray contacts Therefore the SIM_PD_N detection signal must be disabled before the SIM is removed from its tray e The SIM should be located and its signals should be routed away from any possible EMI sources such as the RF antenna and digital switching signals e The SIM interface signals length should not exceed 100 mm between the H24 interface connector and the SIM tray This is to meet with EMC regulations and improve signal integrity Page 49 of 88 3 11 2 3 12 elit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 e To avoid crosstalk between the SIM clock and data signals SIM_CLK and SIM_DIO it is recommended to rout them separately on the applicat
36. echanical SpecificationS i 78 Bele Board UMEN ON ersa EE EEEE EEEE EEEE EEEE 78 8 2 Interface Connector Gpecifications 78 eee Maung CONNECCION eE 80 8 3 MMCX Connector specilicalions a 80 Oeste Maing COMMC OOM E 81 8 4 UFL eriw egen E 83 8 4 1 Mating Connector 84 00 PLANON ee ee 84 Vi Acronyms a a CH e LE 86 9 1 Document E Eegen 88 H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 A 2 4 s 4 4 e P e e e da 7 d a j e g G fter _ Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 11 of 88 rA 8 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 List of tables TABLE STREIT TN RE Di TABLEE 4 IXROWERSUFELCSIONA Sicilia apici 32 TABLE 4 3 HACURRENT RATINGS rei apicale 37 TABLE 4 4 SINEINTEREACE SIGNALS pirla papa 49 TABLE 5 1 CONTROLS AND INDICATORS eeetrrerrerrorrericeren ie reeeen rie ricize size ri eien reo rieieo rioni ce nen ice rie nen riore ezeonioneo 57 TABLE S 2 YREF SPECIFICA TIONS ete osteo stg ee eee aan 59 TABLE 6 1 ANTENNA INTERFACE SPRCTIRICATIONS eee ccceeeeeccceaeeeeececeaueeeecenaaeeeeceeaaueeeeeeeaueeeseeeaaneeess 63 TABLE 7 2 ACTIVE GPS ANTENNA REQUIREMENTS 67 TABLE kE EE RRE NN E 69 TABLE 8 2 ENVIRONMENTAL RATINGS attttrerrerrereeeice renze riezen zeri cere nieeice renze rie nen rie nicerenice rie nen reo iieieonionio 70 TABLE
37. email The following information is required when reporting a problem e Customer name and address e Customer contact information for this request including Name Telephone Fax number Mobile number Email address e Product name H24 e Software version of the unit ATI8i9 command or model number e PCB version located on the PCB near the RF connector e In addition to the information requested above send the following AT commands and the HyperTerminal log with the responses e AT CMEE 2 to get textual error message e AT CPIN to get SIM card status e AT CREG to see if the TXVR is registered to the network e AT CSQ to get the signal strength RX level e AT CGSN II to read the IMEI number of the unit e AT S to get the setting of basic AT commands e AT CMER 0 0 1 1 to get messages and indicators from the handset display to the DTE a k A gt ay te i e dI n a Pi A gt per IHR di f i n d i e Ar ae g gt 7 i f F a 5 d 4 e d ep Li nts itd e gt 5 E mt mais BI Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 14 of 88 L 8 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 1 9 Document Organization e This manual contains the following chapters e Chapter1 introduces the H24 unit and provides importan
38. er negative prt et et et e ALRT_P Alert speaker positive CN N Microphone input positive N Ge Ge Microphone input negative bech AGND Audio ground T asi MIC2_P Headset microphone input positive Eet forbidden without written authorization from Telit Cominunications S p A All Rights Reserved Page 76 of 88 pi Le ei Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Headset Differential 2 microphone AVpp input negative Headset RL Single Ended Speaker AVpp Headset Ving lour lt 2mA 2 0 detect VIL interrupt General purpose A D LD E gt i N LA General purpose A D Not Connected ANT DEI Do not connect Do not connect RC SCL Do not connect RC SDA Do not connect Table 7 3 Interface Specifications bech Q NOTE R PD 210kQ R PU 390kQ SA rye ao j SN R hb n d f f gt n 245 D e Eet forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 77 of 88 L 8 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 8 Mechanical Specifications 8 1 Board Dimensions This picture describes the H24 mechanical characteristics TEN DI FL GPS RF Connector UFL Diversity RF Connector do e MEX Main RF Connector 70 Fin Interface Connecter 3 0mm stacking Application PCB Figure 8 1 H24 Mechanical C
39. full power mode GSM TX and RX mode with GPS ON e full power mode GPS Active Antenna Supply Circuit The internal supply circuit for the external antenna has the following characteristics e The supply voltage can be set to 1 5V 3 05 V DC e Enabling the power supply is done using the MGPSAPWR AT command Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 66 of 88 i lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 e The power supply voltage level can be controlled by the same AT command 50mV steps NOTE Refer to H24 Developer s Guide AT Commands Reference Manual P N 6802986C37 for more information The external active antenna should meet the following requirements given in the following table NOTE The H24 module supports active GPS antenna only 824 915MHz gt 10dB 1710 1785MHz gt 19dB 1850 1980 gt 23dB Table 6 1 ACTIVE GPS ANTENNA REQUIREMENTS NOTE LNA gain above gt 23 dB can cause saturation of the GPS receiver Cellular to GPS port isolation 7 8 H l E a A IL d WW i DN Se ef ree 2 e n _ a d E e TS 4 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 67 of 88 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 6 1 7 GPS Antenna Connector Location Figure 7 1shows the GPS antenna c
40. gardless of the H24 operating mode The following table gives the VREF specifications Me ee Load 0 65 regulation Line 0 2 XIV regulation Table 4 2 VREF Specifications 4 6 Wakeup Out Some applications incorporate their own power saving mode in which they operate with minimal functionality including disabling of interfaces and serial communications The wakeup out WKUPO_N signal is an active low output which is designed to support a low power mode feature in the host application This signal is used by H24 to indicate that it requires communicating with the host application through the serial interface due to an incoming call or data or an unsolicited event Applications that incorporate a low power mode should use this signal as an indication to switch from low power mode to normal operation and activate the serial interface The wakeup out mechanism using the WKUPO_N signal is controlled by 2 AT commands see Error Reference source not found e ATS102 Defines the delay time in milliseconds that H24 will wait after asserting the WKUPO_N signal low before sending data on the serial interface This delay is required to allow the application enough time to reactivate from low power mode and switch to normal mode If ATS 102 0 which is the default value the WKUPO_N signal and mechanism is disabled In case the serial interface incorporates hardware flow control signals the data will be sent according to
41. haracteristics 8 2 Interface Connector Specifications The H24 uses a single 70 pin 0 5 mm pitch board to board connector for the application interface as described in the following table E Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 78 of 88 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 H24 Connector Mating Connector Stacking Height Molex 53748 0708 Molex 52991 0708 Table 8 1 H24 interface connector options The following picture shows the H24 interface connector 34149 0 08 3 0mm Figure 8 2 H24 Interface Connector What follows is a description of the H24 interface connector characteristics e Parameter 53748 3 0 mm e Contacts 70 e Rows 2 e Pitch 0 5 mm e Maximum Current 500 mA e Maximum Voltage 50 V e Contact Resistance50 mQ maximum e Insulation Resistance 100 MQ minimum e Durability 50 mated cycles maximum e Stacking Height 3 0 mm e Mates with Molex 52991 0708 gt Ut EE a n 4 d e d A ay gt 7 ni F sa X R PY ag y E Ai P d j al w bb i i sa L Au Gee A d n A i l 8 1 e f f s Ok D ps soe eS Y E d A NM I ep Sr e EN Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 79 of 88 Te lit H24 Hardware User Guide 1VV0300918 Rev 0 201
42. he INDEMNITY Section of this Agreement The preceding states TELIT s entire liability for TELIT s breach or failure to perform under any provision of this Agreement rA 8 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 General Product Description Designed with Tri bands WCDMA amp quad band GSM capabilities which supports WCDMA bands B1 2100 B4 1700 B2 1900 B5 850 amp B8 900 with HSPA capability and four GSM bands 850 900 1800 1900 MHz with GPRS EGPRS multi slot class 12 H24 can operate on any GSM GPRS EGPRS WCDMA HSPA network to provide voice and data communications The H24 is similar to a condensed cellular phone core which can be integrated into any system or product that needs to transfer voice or data information over a cellular network Thus it significantly enhances the system s capabilities transforming it from a standalone isolated product to a powerful high performance system with global communications capabilities The H24 is designed as a complete GSM WCDMA communications solution with all the controls interfaces and features to support a broad range of applications e A powerful audio interface e A large set of indicators and control signals e Several advanced power saving modes e A variety of serial communications solutions All these features and interfaces are easily controlled and configured using a versatile AT command interface that provides full control over the H24 operatio
43. he H24 On Using ONN sssssssssssssnnnnnnnnnnnnnnnnnnnsnsrrnrrrrnrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrerereren 38 3 6 4 Turning the H24 On Using IGN o 39 o LUMING hon TC O E 37 3 6 6 Turning the H24 off Using ON N ME 39 3 6 7 Turning the H24 off Using ION E 40 5 0 0 Fower Loss SRU GOWI WE 40 3 6 9 Turning the H24 off Using AT MPWRDN 41 5 LOW Power Medea 41 3 7 1 Activating Low Power Mode sssssssssssssnnnnnnnsnsssrrrrrrsrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrerrerreen 41 3 7 2 Serial Interface during Low Power Mode 42 3 7 3 Terminating LOW Power Moderni 43 3 7 4 Temporary Termination of Low Power Mode 43 3 7 5 UART and USB Exiting of Low Power Mode 45 3 8 Real Time Clock i 45 3 9 SR A 46 391 Primary UART UAR RE 46 3 9 2 Secondary UART WART2 ccvcsasivesntecetanadecavacadeuniadadeindersdauaitedaiauederathaatasithsntataviaantwaeubinuiunadte 47 So E gt e ee Ee 48 lb T SIET E E E E 48 Sle UOT Ma SUI CC TiC IO aeae EE EEEE 49 elidel SIM D sign EE 49 Z Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 3 11 2 Embedded SIM 50 3 12 Audio InterfaCe e nanne rannan orraa nae L EAEE ELELEE ERELL EREE C ERARE REELE naana 50 3 13 Handset Interface 51 3 14 Headset interla CE ccrann rE ENAERE EEEE EAEKO ISONE 52 3 15 Interface to an External Speaker Amplifier i 93 Jlo Audio IDS SIO EE 54 olo A
44. if hardware flow control is set by AT IFC 2 2 or AT amp K4 and CTS control is set by AT MSCTS 1 command The H24 wakes up periodically from low power mode to listen to paging channel of the GSM WCDMA networks for any incoming calls or data After this short paging is completed H24 returns to low power mode During this short awake period the serial interfaces are enabled and communications with the module is possible if both AT IFC 2 2 or AT amp K4 and AT MSCTS 1 commands are in use The CTS_N signal is alternately enabled and disabled synchronously with the network paging cycle CTS_N is enabled whenever H24 awakes to page the network This indicates the H24 serial interfaces are active see CTS Signal During Sleep Mode When using AT IFC 2 2 the Terminal should be set to flow control HW When using AT IFC 0 0 the Terminal should be set to flow control None Need to disconnect and connect to terminal for the new setup to be active RS232 cable hot swap is supported and insert cable will wake up the H24 WAKEUP_IN line pin 16 on 70 pin connector should override any sleep condition and will prevent H24 from enter sleep mode In case user is working with UART and enables HW flow control it is advised that the user will plan his system to wake up H24 also using the WAKEUP_IN HW line If the following conditions become true the user will be able to wake H24 only through WAKEUP_IN line or just return to work with follow control
45. instantaneous current and therefore cause the largest voltage drop If the voltage drops are not minimized the frequent voltage fluctuations may degrade the H24 performance The following illustrates the power supply behavior during GSM transmission Torea ES TTT E VEC S00 max d mE oF SUS TX Figure 3 4 Transmission Power Drops NOTE 1 TX slot is shown It is recommended that the voltage drops during a transmit burst will not exceed 300mV measured on the H24 interface connector In any case the H24 supply input must not drop below the minimum operating level during a transmit burst Dropping below the minimum operating level may result in a low voltage detection which will initiate an automatic power off To minimize the losses and transients on the power supply lines it 1s recommended to follow these guidelines e Usea 1000 uF or greater low ESR capacitor on the H24 supply inputs The capacitor should be located as near to the H24 interface connector as possible e Use low impedance power source cabling and board routing e Use cabling and routing as short as possible e Filter the H24 supply lines using filtering capacitors as described in the following table lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Description 1000 uF GSM Transmit current Minimizes power supply serge losses during transmit bursts no more than 200mV Use maximum possible value 10 nF 100 nF Digital sw
46. ion e The antenna installation must provide a minimum separation distance of 20 cm from users and nearby persons and must not be co located or operating in conjunction with any other antenna or transmitter e Antenna installation should be done by a professional installer and should meet all FCC requirement as given in FCC part 15 e Combined cable loss and antenna gain e R amp TTE requirements e 900 MHz GSM band The combined cable loss and antenna gain must not exceed 4 8 dBi e 1800 MHz band The combined cable loss and antenna gain must not exceed 10 78 dBi e UMTS 900 MHz band The combined cable loss and antenna gain must not exceed 4 31 dBi e UMTS 2100 MHz band The combined cable loss and antenna gain must not exceed 7 72 dBi e FCC requirements e 800 MHz cellular band WCDMA amp GSM The combined cable loss and antenna gain must not exceed 5 85 dBi e 1900 MHz PCS band WCDMA amp GSM The combined cable loss and antenna gain must not exceed 2 57 dBi e 1700 MHz UMTS band WCDMA The combined cable loss and antenna gain must not exceed 5 30 dBi e Info MIC Requirement lt 3 dBi Standard Ordinance Regulating Radio Equipment Se 1S 7 All Article 49 6 4 5 OEM installers must be provided with antenna installation instruction and transmitter operating conditions for satisfying RF exposure compliance 1 12 3 Section 15 203 Antenna Requirements An intentional radiator shall be designed to ensure that no ante
47. ion board and preferably isolated by a surrounding ground plane e The SIM card signals should be protected from ESD using very low capacitance protective elements zener diodes etc e The H24 interface does not support SIM programming through the VPP signal This signal should not be connected to H24 e SIM voltage level will not drop below 2 7V 1 6V for 1 8V SIM card during hot insertion e Itis recommended to add series termination at signals SIM CLK 100 Ohm and the SIM_DIO 56 Ohm and bypass SIM_VCC with a 100nF cap Embedded SIM The H24 newest feature is incorporating an Embedded SIM inside depending on H24 model Embedded SIM e g eSIM or chip SIM is a secured micro controller IC with the same pin out interface and the same operation as an external SIM card The eSIM main advantage is it robustness making it an ideal solution for M2M applications Since an eSIM is actually an IC soldered on the H24 it can withstand wider temperature range then a regular external SIM card that is usually made of plastic and gets twisted and bowed at high temperature causing disconnection inside the SIM tray For the same reason the eSIM is more durable to vibration then a regular external SIM card Hard vibration on an application with a SIM card socket may result in with an intermitted connection between the SIM card socket and the SIM card Two signals are associated with the eSIM e SIM_PD_N pin 50 this signal must
48. is ready to communicate IMPORTANT The timing shown in the diagrams below depends on network response time Turning the H24 On When the H24 power supply is stable above the minimum operating level and H24 is powered off only the internal RTC timer is active When H24 is turned on by any of the methods described below it will first perform an automatic internal system test during which basic functions are verified The system test duration is typically 3 seconds Depends on network coverage When the system test has completed H24 resumes normal operation During the internal system test process H24 may toggle several interface signals which are visible to the application These signals do not represent any valid state or data and should be ignored by the customer application until the system test has completed Power Supply Turn on When the H24 is powered for the first time it will switch on only in case that a valid reason was detected IGN ON_N activation otherwise it will stay off The ON_N and IGN signals will be active and responding only after the power supply to the H24 is stable above the minimum operating level Therefore the ON_N and IGN signals must not be used for at least 100 milliseconds after applying power to H24 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 37 of 88 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06
49. itching noise Filters digital logic noises from clocks and data sources 8 2 pF 10 pF 1800 1900 2100 1700 Filters transmission EMI MHz bands 33 pF 39 pF 850 900 MHz bands Filters transmission EMI Table 3 2 Recommended power supply filtering 3 0 Current Consumption The table below specifies typical H24 current consumption ratings in various operating modes The current ratings refer to the overall H24 current consumption over the VCC supply NOTE H24 was tested at 25 C voltage level was 4V Idle mode measurements were taken without USB cable connected EF Mow ATC mode mode ISLEEP Low power mode mA pene only See forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 34 of 88 Le ei Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 5 GSM850 PCL 367 10 214 15 165 19 151 EGSM900 PCL 337 206 IGSM RMS GSM voice i mA 1 TX slot 1 Rx slot DCS1800 PCL 239 173 153 146 PCS1900 PCL 202 181 155 147 GSM850 PCL 5 551 438 276 210 EGSM900 PCL 5 579 10 472 IGPRS RMS GPRS Class 12 n SN mA 4 TX slot 1 Rx slot DCS1800 PCL 394 353 259 217 PCS1900 PCL 432 338 261 226 GSM850 PCL 345 258 209 EGSM900 PCL 353 IEGPRS RMS EGPRS Class 12 Ss mA 4 TX slot x rie ao i gt en MO RITIRI J x D gi f F A gt n KZ D e a ey 2 Reproduction forbidden without written author
50. ization from Telit Communications S p A All Rights Reserved Page 35 of 88 Nn pa We On S amp S nN nan CH nN na CH pa ON WN Vi OD nN Nn CO OTE CO O e 4 vy Le ei Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 301 255 204 325 244 206 NO 1 Rx slot DCS1800 PCL 9 15 PCS1900 PCL 2 9 15 GSM850 PCL GSM900 PCL IGSM MAX Peak current During TX slot DCS1800 PCL PCS1900 PCL WCDMA850 WCDMA1900 Twcpma rms WCDMA WCDMA2100 WCDMA1700 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 36 of 88 d WI K e or Pal e k e R 3 6 3 6 1 3 6 2 r i lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 WCDMA900 611 243 219 GE Table 3 3 H24 current ratings Power On Off Operation The H24 power on and off process includes two primary phases which are indicated at the interface connector by the hardware output signals RESET_N and CTS_N The RESET_N signal indicates whether H24 is powered on or off When this signal is enabled low H24 is powered off When it is disabled high H24 is powered on The CTS_N signal complies with RS 232 standard When this signal is high the H24 serial interface is disabled When it is low the serial interface is enabled and H24
51. l Purpose 1 0 The H24 incorporates 8 general purpose IO signals for the user application Each GPIO signal may be configured and controlled by AT command These signals may be used to control or set external application circuits or to receive indications from the external application Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 61 of 88 i lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Antenna Interface The H24 antenna connector is the RF interface to the GSM WCDMA network The antenna interface is terminated by an MMCX connector type which is 50Q impedance matched at the relevant GSM WCDMA frequencies The antenna or antenna application must be installed properly to achieve best performance The following table gives the antenna interface specifications Conditions Specifications GSM 850 GSM 900 DCS 1800 PCS 1900 Gain For antenna gain please refer to Antenna Installation WCDMA BI 1920 1980 MHz 2100 2110 2170 MHz RX WCDMA B2 1850 1910 MHz Page 62 of 88 d e Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 850 WCDMA B4 1710 1755 MHz 1700 900 Table 5 1 Antenna Interface Specifications It is the Integrator s responsibility to design the antenna or antenna assembly used with the H24 This will highly affect the RF performance of the H24 dropped calls battery consumption etc
52. l not return to low power mode This is regardless of the original wake up reason or source H24 will remain awake while data is transferred Only when the serial interface transfer is completed and the data has been processed H24 will return to low power mode automatically according to the ATS24 settings see the following figure 3 7 9 3 7 9 1 3 7 5 2 3 7 5 3 3 8 na 8 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 sleep H24 Mode hake Disabled CTS N Enabled TAD Nor RAD N Figure 3 11 Serial Interface Data UART and USB Exiting of Low Power Mode Enable Disable Low Power Mode The H24 low power mode is enabled and disabled by the AT MSLEEP command To permanently terminate the H24 low power mode the MSLEEP 0 command must be used H24 will not return to low power mode until an AT MSLEEP 1 commands is set again This command can be sent only when the serial interface is active UART Exiting of Low Power Mode In case the serial interface is disabled Hardware Flow control is OFF and WKUP_I is not used it must first be activated before sending this command To reactivate the serial interface a temporary termination of the low power mode is required by sending AT command that will catch by the RX line interrupt service routine and will use to wake up the module The execution of the first command after exit Sleep Mode by RX interrupt is not guaranteed USB
53. ly of 100 milliseconds and is also indicated by the CTS_N signal inactive high state The delay guarantees that data on the serial interface is not lost or misinterpreted Temporary Termination of Low Power Mode The WKUPI_N signal is an active low input that is set high by default By asserting this signal low the application can wake up H24 from low power mode and switch to idle mode Low power mode may be terminated temporarily by several sources some of which are user initiated and others are initiated by the system Using the WKUPI_N signal to wake UART from Sleep Mode The WKUPI_N signal is an active low input which is set high by default By asserting this signal low the application can wake up H24 from low power mode and switch to Idle mode 3 7 4 2 3 7 4 3 na 8 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 H24 will remain in idle mode awake and fully active as long as WKUPI_N signal remains low When this signal is disabled and set high again H24 will return to Sleep mode automatically according to the ATS24 settings The WKUPI_N signal is the recommended method to temporarily wake up H24 from low power mode It provides the application full control of the H24 operating mode and guarantees that data on the serial interface will not be lost or misinterpreted The WKUPI_N signal can be used to wake up H24 from low power mode If the serial interface has been controlled by the AT IFC 1 1 or A
54. ly of Hirose maning cables are available Such a cable assembly example is the Hirose U FL LP 040 is U FL R SMT which is illustrated in the following picture UJFL R ShiT UFL LP O40 Die D 97 Figure 8 7 UEL Mating Connector For more details regarding Hirose mating cable assemblies refer to http www hirose co jp cataloge_hp e32119372 pdf H24 Mounting The H24 incorporates 2 mechanical holes for installing the module onto the application board The holes are 2 4 millimeters in diameter which accommodates several types of mechanical elements Several mechanical approaches may be applied to mount and fasten H24 to the application board Using M2 screws with suitable washers to mount the module onto spacers a bracket or chassis is a recommended design Special attention must be paid to the area surrounding the H24 mounting holes A grounding pad of 4 4 millimeters in diameter surrounds these holes The diameter and area of this pad must not be exceeded by any mechanical or electrical element Several electrical components which are not shielded are located near the holes These components must not be in contact with the mounting elements or with other parts of the application board and care must be taken to avoid any damage The following picture depicts the H24 mounting area Page 84 of 88 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Restricted Area Ground Pad 2 4 mm d A mim
55. n The H24 control and indication interface extends its capabilities beyond GSM communications This includes an A D and GPIO interface and a regulated output voltage for supplying external circuits With these interfaces the H24 can operate and control external applications and receive feedback from external environment and circuits The H24 interface design using a single 70 pin board to board connector through which all application interfaces are managed facilitates fast and easy integration It significantly shortens the development process and minimizes the product s time to market The H24 is extremely compact in size with a slim mechanical design which makes it space saving on the application board and easily fitted into any board design The advanced power supply management significantly reduces power consumption to a necessary minimum and prolongs battery life Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 2 1 Product Specifications Product Features Operating systems GSM GSM 850 GSM 900 DCS 1800 PCS 1900 WCDMA B1 2100 B2 1900 B4 1700 B5 850 B8 900 Physical Characteristics Size with 3 mm 45 2 x 24 4 x 5 4 mm connector Restricted Operational 30 C to 85 C Temperature Storage temperature 40 C to 85 C Operating voltage 3 3 4 2 V Current consumption In AT mode 1 4 mA DRX9 Sleep mode d pe p par Ai git it akh Lor sad e lt 3 7
56. n e H24 module is designed to meet the EMC requirements of EN 301 489 07 e When integrating the H24 module into a system Telit recommends testing the system to EN 301 489 07 e You must not remove any label from the H24 module e Systems using the H24 module are subject to mandatory EMC RF Safety including EME testing under R amp TTE directive 1999 5 EC to www newapproach org Directives Other directives such 2002 95 EC RoHS WEEE Directive 2002 96 EC should also apply to a system using the H24 module 1 10 FCC Notice to Users Telit has not approved any changes or modifications to this device by the user Any changes or modifications could void the user s authority to operate the equipment See 47 CFR Sec 15 21 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 See 47 CFR Sec 15 19 3 If your mobile device or accessory has a USB connector or is otherwise considered a computer peripheral device whereby it can be connected to a computer for purposes of transferring data then it is considered a Class B device and the following statement applies Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 16 of 88 elit H24 Hardware User Guide 1VV030
57. n power supply is off and Vcoin is active the RTC 1s still working When power supply is off no Vcoin applied the RTC will work only for 2 sec and will turn of Ni 3 9 Serial Interfaces H24 includes three completely independent serial communications interfaces which may be used by the application for several purposes 3 9 1 Primary UART UART1 The H24 primary UART is a standard 8 signal bus The primary UART is used for all the communications with H24 AT commands interface GPRS EGPRS data and CSD data programming and software upgrades The UART signals are active low CMOS level signals For standard RS232 communications with a PC an external transceiver is required H24 is defined as a DCE device and the user application is defined as the DTE device These definitions apply for the UART signals naming conventions and the direction of data flow as described in the following picture e D x e te i e dI n a Pi A gt per IHR f i 7 ui Ar ae g _ J x e l f v E a 5 d i DI d ep r a Li se FINI a i E mt a Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 46 of 88 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 UART OTE Hz4 DCE Figure 3 12 UART1 Interface Signals UART1 Interface Signals The H24 primary UART supports maximum data rate of up to 4 Mbps inte
58. na radiations e Digital logic switching noise Most of the audio noise originates from the GSM transmit burst current surges 217 Hz TDMA buzz which appear on the main power supply lines and antenna but also indirectly penetrate the internal application s supplies and signals The noises are transferred into the H24 s audio circuits through the microphone input signals and then are amplified by the H24 s internal audio amplifiers To minimize the audio noise and improve the audio performance the microphone and speaker signals must be designed with sufficient protection from surrounding noises The following guidelines should be followed to achieve best audio performance e Reference the microphone input circuits to the H24 AGND interface signal e If using single ended audio outputs they should be referenced to the H24 AGND interface signal e Keep the audio circuits away from the antenna e Use RF filtering capacitors on the audio signals as described in table 4 2The audio signals should not be routed adjacent to digital signals e solate the audio signals by a surrounding ground plane or shields e Filter internal supplies and signals that may indirectly affect the audio circuits from noises and voltage drops Analog Ground The H24 interface incorporates a dedicated analog ground contact AGND pin 59 which is internally connected to the H24 s ground The AGND signal is intended to provide a separate ground connection for the applicati
59. nals are shown in the following figure ZU pin connector H24 USB CONNECTOR USB _YBUS 10 ie USA DP os USB DI GROUND GND Figure 3 13 USB Interface Signals USB Interface Signals UID determines the USB mode configuration Host or Client Client mode is supported NOTE Do not connect USB_ID pin pin 45 IMPORTANT When layouting USB signals Run HS_D_P M as diff pair with equal length to maintain a nominal 90 Q differential impedance 15 single ended impedance in a range of 42 to 78 O being acceptable SIM Interface The H24 incorporates a SIM interface which conforms to the GSM 11 11 and GSM 11 12 standards which are based on the ISO IEC 7816 standard These standards define the electrical signaling and protocol specifications of a GSM SIM card Page 48 of 88 3 11 3 11 1 i lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 H24 does not incorporate an on board SIM card tray for SIM placement The SIM must be located on the user application board external to the H24 The H24 SIM interface includes all the necessary signals which are routed to the interface connector for a direct and complete connection to an external SIM H24 supports dynamic detection of the SIM card through a dedicated SIM detection signal H24 will detect a SIM card insertion or removal upon power up or during operation by the transitions on the SIM_PD_N signal Some of the H24 models incorporat
60. nd repair of the equipment described in this manual Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design manufacture and intended use of the equipment Telit assumes no liability for the customer s failure to comply with these requirements The safety precautions listed below represent warnings of certain dangers of which we are aware You as the user of this product should follow these warnings and all other safety precautions necessary for the safe operation of the equipment in your operating environment Ground the instrument To minimize shock hazard the equipment chassis and enclosure must be connected to an electrical ground If the equipment is supplied with a three conductor AC power cable the power cable must be either plugged into an approved three contact electrical outlet or used with a three contact to two contact adapter The three contact to two contact adapter must have the grounding wire green firmly connected to an electrical ground safety ground at the power outlet The power jack and mating plug of the power cable must meet International Electrotechnical Commission IEC safety standards Do not operate in an explosive atmosphere Do not operate the equipment in the presence of flammable gases or fumes Operation of any electrical equipment in such an environment constitutes a definite safety hazard Do not service or adjust alone Do not at
61. nna other than that furnished by the responsible party shall be used with the device The use of a permanently attached antenna or of an antenna that uses a unique coupling to the intentional radiator shall be considered sufficient to comply with the provisions of this Section The manufacturer may design the unit so that a broken antenna can be replaced by the user but the use of a standard antenna jack or electrical connector is prohibited This requirement does not apply to carrier current devices or to devices operated under the provisions of Sections 15 211 15 213 15 217 15 219 or 15 221 Further this requirement does not apply to intentional radiators that must be professionally installed such as perimeter protection systems and some field disturbance sensors or to other intentional radiators which in accordance with Section 15 31 d must be measured at the installation site However the installer shall be responsible for ensuring that the proper antenna is employed so that the limits in this Part are not exceeded Info MIC Requirement lt 3 dBi Standard Ordinance Regulating Radio Equipment Se ia 7 All Article 49 6 4 5 e d y i s A Cay m 1 P i rca D d eer S d i Ba a sac ZE BI Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 18 of 88 1 12 4 na 8 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Standard
62. ntenna typically smaller than the primary antenna e Antenna should be designed for the supported UMTS HSPA bands of interest e UMTS HSPA RX frequencies UMTS HSPA RX Band Frequency MHz Band VIII 925 960M Hz e Antenna impedance 500hm e Free space antenna efficiency should be greater than 7 dB 20 e Antenna VSWR lt 3 1 in free space for all bands e Delta gain between primary and secondary antennas should be greater than 3 dB e Isolation from primary antenna to secondary antenna should be greater than 8 dB 5 1 3 1 Diversity Antenna Design Recommendations e For better Isolation it is recommended to increase distance between primary antenna and secondary antenna as possible e For lower antenna correlation lower correlation improves performance under fading conditions it is recommended that diversity antenna polarity will be horizontal in case main antenna is vertical e Itis important to complete TRP and TIS testing at the chamber include both primary and diversity antenna installed These tests are typically required by the network operators as part of their acceptance requirements Page 64 of 88 6 1 6 1 1 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 GPS and Antenna Interface H24 GPS supports the following configurations e Autonomous GPS e Assisted GPS SUPL GPS e MS BASE GPS The H24 GPS has the following capabilities e The receiver uses a dedicated RF connec
63. on s external audio devices and circuits This signal provides an isolated ground connection directly from H24 which is separated from the noisy digital ground of the application It is recommended to connect this signal to analog audio devices and circuits used by the application Using a separate analog ground minimizes audio noises and improves the audio circuit s immunity from external interferences Digital Audio Interface The H24 digital audio interface is a serial Pulse Code Modulation PCM bus which uses linear 2 s compliment coding H24 is the PCM bus master supplying the clock and sync signals to the application 3 16 3 na 8 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 The H24 digital interface is a 4 signal PCM bus which includes a bit clock output signal for the bus timing a frame sync output signal for audio sampling timing and serial data input and output signals IMPORTANT The PCM bus signals are shared internally by the analog audio interface and the digital audio interface Therefore when using the analog audio interface the PCM bus signals must be tri stated or disconnected at the interface connector The digital audio interface supports 4 types of audio data formats which define the PCM bus configuration and data rates Voice band audio Intended for speech during voice calls and for mono rings and alerts Stereo audio Includes 3 audio formats that support high quality ste
64. onnector location on the H24 GPS Antenna Connector Figure 6 1 GPS Antenna Connector Location 6 1 8 GPS Antenna Installation Guidelines e Itis recommended that the GPS antenna will not be installed adjacent to the cellular antenna e Incase the GPS antenna is adjacent to the cellular antenna it 1s recommended that the GPS antenna will include saw filter before the GPS antenna LNA in order to reduce cellular jammers that potentially cause IP3 blockers at the antenna LNA stages e Antenna must not be installed inside a metal case e The customer should adhere to the antenna manufacturer instruction e a Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 68 of 88 i lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 7 Electrical and Environmental Specifications 7 1 Absolute Maximum Ratings The following table gives the maximum electrical characteristics of the H24 interface signals 1 WARNING Exceeding the values may result in permanent damage to the module Digital Input H24 poweredon 0 2 Signalsxcept for IGN VBUS USB_DP USB_DN E Analog Input Signals H24 powered on Audio A D interfaces All Input Signals H24 powered off 0 2 Except for IGN VBUS USB_DP USB_DN GEES IGN signal 0 2 VBUS signal VBUS signal at Host mode current draw USB_DP USB_DN SN ON Nn
65. or or cable assembly which corresponds to the H24 MMCX connector specifications Any standard MMCX connector or application from different manufacturers may be mated with H24 Such a cable assembly example is the Huber Suhner PN 11_MMCX 50 1 2 111_OH which is illustrated in the following picture e A deng Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 81 of 88 H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Item description 11_MMCX 50 1 1 111_OH Connector straight cable plug for flexible Description cable series Pattern MMCA Type Pattern 11 Highlights e SUHNER full crimp cable attachement Item number 22651666 Data sheet Al 11_MMCX 50 1 1 111_0 Outline drawing Al 44_MMCX 50 1 1 111_0 Catalogue drawing 11_MMCX 50 1 1 111_0 Related documents Assembly Instruction 2002 95 EC compliant RoHS Interface Standards SUHNER MMCxX Mechanical data Jump to Top Cable Entry Centre Contact crimped Cable Entry Outer Contact crimped Engangement 15 N Force max Disengangement F DN min Disengangement F 15 N max Dielectric Size 1 Electrical data Jump to Top Impedance 90 a Interface Freq max 6 GHz Environmental and general data Jump to Top Operating Temp 55 C min Operating Temp 155 C max Weight 0 0009 kg Number of Matings 500 Figure 8 5 Optional MMCX Cable Assembly Page 82 of 88 Te lit H24
66. or the planning construction maintenance operation or use of any nuclear facility for the flight navigation communication of aircraft or ground support equipment or in any other application in which the failure of the Product could create a situation where personal injury or death may occur If CUSTOMER should use any Product or provide any Product to a third party for any such use CUSTOMER hereby agrees that TELIT is not liable in whole or in part for any claims or damages arising from such use and further agrees to indemnify and hold TELIT harmless from any claim loss cost or damage arising from such use EXCEPT AS SPECIFICALLY STATED ABOVE THE PRODUCTS ARE PROVIDED AS IS AND TELIT MAKES NO OTHER WARRANTIES EXPRESS IMPLIED STATUTORY OR OTHERWISE REGARDING THE PRODUCTS TELIT SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE OR ARISING FROM A COURSE OF DEALING OR USAGE OF TRADE Under no circumstances shall TELIT be liable to CUSTOMER or any other party for any costs lost revenue or profits or for any other special incidental or consequential damages even if TELIT has been informed of such potential loss or damage And in no event shall TELIT s liability to CUSTOMER for damages of any nature exceed the total purchase price CUSTOMER paid for the Product at issue in the dispute except direct damages resulting from patent and or copyright infringement which shall be governed by t
67. reo ring tones and alerts Voice band Audio This digital voice audio format is used for speech during voice calls and for mono rings and alerts The PCM bus signal s configuration for voice band audio is e PCM CLK 2048 kHz serial clock e PCM_FS 8 kHz bit wide frame sync e PCM_DOUT 13 bit linear audio data output e PCM_DIN 13 bit linear audio data input The analog audio is sampled at an 8 kHz rate and converted to linear 13 bit serial PCM audio data The serial data is transferred on the PCM bus in 16 bit word format which includes 13 sampled data bits and 3 added zero value bits The 16 bit serial data is transferred in both directions after each sync signal s falling edge The sync signal pulse duration is one clock period after which the serial data is transferred in both directions for 16 consecutive clock periods Following the 16 bit data transfer the serial input and output data signals inactivate until the next sync pulse which occurs every 125 uS 8 kHz It is recommended the serial data signals will be High Z during the inactive period IMPORTANT In digital audio mode the input and output gains cannot be controlled by AT commands Figure 4 18 illustrates the PCM bus format of the voice band audio configuration Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 PCM_FS PCM_CLK on peu TEE H Don t Dont PCM_DIN Care S e re t t s s 7 s s 3 0 0 0 core Figure
68. rface and up to 230 kbps for data services using the UART 1 interface All flow control handshakes are supported hardware software or none Parity bit and Stop bit definitions are also supported The UART default port configuration is 8 data bits 1 stop bit and no parity with hardware flow control 3 9 2 Secondary UART UART2 The H24 secondary UART is a standard 4 signal bus and it is used for GPS only For more information contact TTSC WARNING The secondary UART can t be used for standard communication such as AT commands etc Do not connect UART2 signals when GPS is not used d A m La N La Pe gi d a V _ n WT n P A axe rr be E a We r H 8 i r sy ds A gt ot g l Aa A i r 5 i J T LI j b Ta Di f ii l n A DI j ot an y 4 A n a f d H f n ER Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 47 of 88 3 7 3 3 10 Te lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 USB Interface H24 incorporates a standard Universal Serial Bus USB interface The H24 USB electrical interface and protocol conform to the USB 2 0 high speed specifications H24 is defined as a USB device on the USB bus and does not support hub or host functionality USB may be used for standard communications with H24 as done through the UART interface The USB interface sig
69. s Electromagnetic Compatibility Principles and Applications by David A Weston published by Marcel Dekker Inc 270 Madison Avenue New York NY 10016 USA 3GPP TS 27 007 v6 9 0 AT command set for User Equipment UE 3GPP TS 27 005 v6 0 1 Use of Data Terminal Equipment Data Circuit terminating Equipment DTE DCE interface for Short Message Service SMS and Cell Broadcast Service CBS 3GPP TS 23 040 v6 9 0 Technical realization of Short Message Service SMS 3GPP TS 24 011 v6 1 0 Point to Point PP Short Message Service SMS support on mobile radio interface 3GPP TS 27 010 v6 0 0 Terminal Equipment to User Equipment TE UE multiplexer protocol 3GPP TS 27 060 v6 0 0 Packet domain Mobile Station MS supporting Packet Switched services 3GPP TS 25 304 v6 10 0 User Equipment UE procedures in idle mode and procedures for cell reselection in con nected mode 3GPP TS 25 308 v6 4 0 High Speed Downlink Packet Access HSDPA Overall description Stage 2 3GPP TS 25 309 v6 6 0 FDD enhanced uplink Overall description Stage 2 3GPP TS 23 038 v6 1 0 Alphabets and language specific information 3GPP TS 21 111 v6 3 0 USIM and IC card requirements 3GPP TS 31 111 v6 11 0 USIM Application Toolkit USAT 3GPP TS 45 002 v6 12 0 Multiplexing and multiple access on the radio path 3GPP TS 51 014 v4 5 0 Specification of the SIM Application Toolkit for the Subscriber Identity Module Mobile Equipment SIM ME interface 3GPP TS
70. s Vocoders EFR HR FR AMR DTMF support Audio control Echo suppression noise suppression side tone gain control and filter control GSM Supplementary Service Call forwarding Call hold waiting and multiparty Call barring Character Set O Le N IRA GSM Control Status Indicators GSM GPRS EGPRS WCDMA HSDPA HSUP A coverage TX enable Data Services Embedded TCP IP stack KZer e d Fa AM me 4 eee a WE Fam TNE Ge E g H PC gt eaz n eener H e Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 26 of 88 E x ah lit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 ie m Flashing tool Table 2 1 Product Specifications kaan 7 d get Reproduction forbidden without written authorization from Telit Communications S p A Page 27 of 88 H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 3 Hardware Interface Description The following paragraphs describe in details the hardware requirements for properly interfacing and operating the H24 module 3 1 Architecture Overview H24 Block Diagram below illustrates the primary functional components of the H24 Stack Memor Hh Antenna Detect GPIO UAETI PIO WAR T2 STi Speaker Headset speaker ll 4 Head MIE eod sel i a3apl4auurt ud ge Alert Speaker Ach Regulator Supplies ON
71. sible that this publication may contain references to or information about Telit products machines and programs programming or services that are not announced in your country Such references or information must not be construed to mean that Telit intends to announce such Telit products programming or services in your country Copyrights This instruction manual and the Telit products described in this instruction manual may be include or describe copyrighted Telit material such as computer programs stored in semiconductor memories or other media Laws in the United States and other countries preserve for Telit and its licensors certain exclusive rights for copyrighted material including the exclusive right to copy reproduce in any form distribute and make derivative works of the copyrighted material Accordingly any copyrighted material of Telit and its licensors contained herein or in the Telit products described in this instruction manual may not be copied reproduced distributed merged or modified in any manner without the express written permission of Telit Furthermore the purchase of Telit products shall not be deemed to grant either directly or by implication estoppel or otherwise any license under the copyrights patents or patent applications of Telit as arises by operation of law in the sale of a product Computer Software Copyrights The Telit and 3rd Party supplied Software SW products described in this instruction man
72. t safety instructions Support and contact information e Chapter 2 provides a detailed product description of the blocks and components comprising the H24 e Chapter 3 describes a hardware interface description for H24 connectors e Chapter 4 describes the control and indicators interface H24 mechanical specifications and requirements e Chapter 5 describes the antenna interface e Chapter 6 describes the GPS and antenna interface e Chapter 7 describes electrical and environmental specifications e Chapter 8 describes mechanical specification for H24 e Chapter 9 provides acronyms abbreviations and the document s revisions log 1 6 Text Conventions Danger This information MUST be followed or catastrophic equipment failure or bodily injury may occur Caution or Warning Alerts the user to important points about integrating the module if these points are not followed the module and end user equipment may fail or malfunction Tip or Information Provides advice and suggestions that may be useful when integrating the module gt All dates are in ISO 8601 format i e YYYY MM DD 1 7 Related Documents e H24 G24 Developer s Kit e H24 AT Commands Reference Manual Page 15 of 88 d e Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 1 8 Regulatory Requirements The Federal Communications Commission FCC requires application for certification of digital
73. tc 20 126 29 0 0 4 IGN Ignition input 0 0 4 3 3 16 TXEN_N Transmit 2 15 26 25 indicator 0 0 45 VoL GPRS Luz 2mA 2 15 26 EGPRS 0 coverage indicator Primary UART 21 TXD_N UARTI TXD I L Vin Vit 11 RXD_N UARTI RXD L Vou VoL K WKUPO_ RESET_N N ui p N N i E dr Uo Z Z GPRS ra Eet forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 73 of 88 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 2 0 2 6 29 Vi 0 gs E gt No ay Li Vou Ge Ee 2 6 VoL IouT IMA 0 0 45 V 2 0 Vou 215 2230 p NI Non leg 26 19 I L PU Vin 2 6 Vit 0 Il lt lui e te a VG ie e o o Nn Nn 23 RLN UARTI RI Vou 2 15 2 6 VoL 0 0 45 Secondary UART For GPS use only ho For GPS use only TXD2_N For GPS use only Lu Lu bech RTS2_N For GPS use only Co nn CTS2_N Le DI USB_VBUS USB bus power j bech 5 kel T p N USB_DP USB bus serial data USB_DN USB bus serial data d Vi USB_ID Do not connect N Nn CH N n 4 ta gt x A Ek 4 d t A a Si Vi bw Get i E A NA E E ge D ke b D If Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reser
74. ted to pin 70 Page 52 of 88 d 8 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Figure 3 16 Headset Interface 3 15 Interface to an External Speaker Amplifier The power management device can also be used as a speaker amplifier The power management speaker driver output power is rated at 500 mW and can be adjust up to 1W To use this feature as an amplifier of an audio output be sure to set the appropriate speaker driver analog and digital gains and set the analog high pass filter corner at the resonant frequency of the far field speaker transducer see next figure For gain levels please refer to H24 AT Reference Commands manual tion forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 53 of 88 Reproduc 3 16 3 16 1 3 16 2 elit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Audio Design The audio quality delivered by H24 is highly affected by the application audio design particularly when using the analog audio interface Therefore special care must be taken when designing the H24 audio interface Improper design and implementation of the audio interface will result in poor audio quality Poor audio quality is a result of electrical interferences or noises from circuits surrounding the audio interface There are several possible sources for the audio noise e Transients and losses on the power supply e EMI fromanten
75. tempt internal service or adjustment unless another person capable of rendering first aid is present Keep away from live circuits Operating personnel must e not remove equipment covers Only Factory Authorized Service Personnel or other qualified maintenance personnel may remove equipment covers for internal subassembly or component replacement or any internal adjustment e not replace components with power cable connected Under certain conditions dangerous voltages may exist even with the power cable removed e always disconnect power and discharge circuits before touching them Do not substitute parts or modify equipment Because of the danger of introducing additional hazards do not install substitute parts or perform any unauthorized modification of equipment Contact Telit Warranty and Repair for service and repair to ensure that safety features are maintained Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 20 of 88 1 13 7 1 14 1 1 14 2 1 14 2 1 14 2 11 na 8 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Dangerous procedure warnings Warnings such as the example below precede potentially dangerous procedures throughout this manual Instructions contained in the warnings must be followed You should also employ all other safety precautions that you deem necessary for the operation of the equipment in your oper
76. tial EARI output is typically 70 mW for a full scale 3 dBm0 sine wave into a 32Q speaker Both microphone pins require 2 2 k bias resistors and 0 1uF AC coupling capacitors The positive microphone terminal is connected to the uC MICBIAS pin through one of the 2 2 kQ resistors this 1 8 V output provides 1 mA of bias current for the Microphone MICBIAS supports multiple microphones simultaneously up to 1 mA In case the user connect single ended mic he must connect it to pin 61 and short circuit pin 62 to ground For gain levels please refer to H24 AT Reference Commands manual cht se Page 51 of 88 3 14 Te j lelit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 Figure 3 15 Handset Interface Headset Interface The most basic handset configuration is shown in the following figure This configuration uses an AC coupled mono earphone interface and a standard single ended microphone interface The output power for the single ended HPH_L HPH_R output is typically 21 6 mW per side for a full scale 3 dBm0 sine wave into a 150 speaker Few alternative earphone configurations are given in the following paragraphs If the load capacitance is greater than 100 pF due to earphones with different capacitive load used a RC shunt network 0 22uF and 220 is recommended to prevent oscillations as shown in the following figure NOTE In case a differential mic is used the negative node should be connec
77. tion set by ATS100 after WKUPO_N is set high e H24 will not set the WKUPO_N signal low if it needs to send additional data during the ATS100 delay time e The application may switch to low power mode after the WKUPO_N signal is set high and the serial interface has been inactive for the duration set by ATS 100 4 7 Network Connection Detection The network connection output signal Pin 49 indicates the network GPRS EGPRS or WCDMA HSPA connection status When H24 is connected to a network this signal is enabled When H24 is not connected to the GPRS EGPRS or WCDMA HSPA network this signal is disabled This pin Pin 49 is enabled by the command AT MCWAKE e gt N L se D U gt H J a A a rr A 4 F SNS r 7 l R t z ot dl E a Eg 25 n A d d p i Lo 7 Gei en JA i i F DN ee ee a a n ew Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 60 of 88 L 8 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 4 8 Transmission Indicator The TXEN_N output signal indicates when H24 is transmitting over the GSM or COMA network This signal follows the H24 GSM transmit bursts This signal is set low during transmission burst and set high when no transmission 1s in progress The following picture shows the TXEN_N operation 4 Ems TXEN_N geg 4 Gms 57548 GSM Tx Figure 4 2 TXEN_N Operation 4 9 Genera
78. tivates low power mode after 5 seconds of UART inactivity NOTE ATS24 0 will not disable sleep mode at H24 AT MSLEEP 1 Enable low power mode AT MSLEEP 0 Disable low power mode default IMPORTANT H24 will not enter low power mode in any case when there is data present on the serial interface Also when any network GSM UMTS activity e g incoming voice call data session or an internal system task is running Only when processing of any external or internal system task has completed if AT MSLEEP 1 and H24 UART is inactive for the duration of ATS24 H24 will enter low power mode 3 7 2 na 8 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 USB Any transaction to the USB will wake up the H24 provided the user USB stack supports suspend resume mechanism In case such mechanism is not supported the user will not be able set the H24 at sleep mode In case of resume event the SW will be responsible to all the needed configurations endpoints etc to maintain the link In case the host USB protocols stack doesn t support resume suspend mechanism the USB module in the H24 will not go to sleep hence the entire H24 will remain active as long as the USB cable is connected Remote wake up is supported CTS signal comply to RS 232 standard at this mode Serial Interface during Low Power Mode During low power mode the H24 serial interfaces are disabled This is indicated by the CTS_N signal high state
79. tor U FL type e GPS receiver can work simultaneously with a cellular connection e Cellular diversity receiver is disabled when GPS is active e Supports an Active GPS antenna only e The H24 will supply the DC feed to the Active antenna e The GPS receiver is activated by the MNMEA AT command NOTE Refer to H24 AT Commands Reference Manual for more information GPS Receiver Performance Time To First Fix TTFF e Stand Alone TTFF e Hot start lt 1 2 sec average e Warm start lt 27 1 sec average e Cold start lt 36 7 sec average e Assisted MS Based TTFF phone calculations e Cold start 2 4sec Sensitivity Autonomous acquisition 145dBm Tracking 158dBm 50 valid fixes Position accuracy e Tracking L1 CA code e 12 Channels e Max update rate 1 Hz Page 65 of 88 6 1 6 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 The module is capable to provide calculated location or ranging measurements to meet the following accuracy Requirements e MS Based Mode Error calculated location less than 11 1 meters 67 of the time and less than 22 5 meters 95 of the time e Autonomous Standalone Mode Error calculated location less than 11 6 meters 67 of the time and less than 24 2 meters 95 of the time Protocol Support e NMEA Module Current Consumption The following table gives the H24 current consumption information with operating GPS WCDMA TX and RX mode with GPS ON
80. ual may include copyrighted Telit and other 3rd Party supplied computer programs stored in semiconductor memories or other media Laws in the United States and other countries preserve for Telit and other 3rd Party supplied SW certain exclusive rights for copyrighted computer programs including the exclusive right to copy or reproduce in any form the copyrighted computer program Accordingly any copyrighted Telit or other 3rd Party supplied SW computer programs contained in the Telit products described in this instruction manual may not be copied reverse engineered or reproduced in any manner without the express written permission of Telit or the 3rd Party SW supplier Furthermore the purchase of Telit products shall not be deemed to grant either directly or by implication estoppel or otherwise any license under the copyrights patents or patent applications of Telit or other 3rd Party supplied SW except for the normal non exclusive royalty free license to use that arises by operation of law in the sale of a product SC KL H n V E a e En de d f F e a L e p A ea e gt i F D d Ci 4 m a P s MM n z e gt n a 7 Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 3 of 88 H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 VENDOR COPYRIGHT Apache Software Foundation Copyright 2004 2005 All Rights Reserved
81. ved Page 74 of 88 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 SIM_PD_N SIM presence I L PU Vin 29 V IL 0 4 SIM_VCC SM mmm Se 3 3 05 V lours 2mA SE RST_ SIM reset E 27 2 85 1 65 1 8 1 95 SIM_DIO SIM serial H DAT 2 85 data 1 65 1 8 95 SIM_C SIM clock H 2 85 IL 65 1 8 A 95 ii reset reset Digital Audio Z sis P g a In case Chip SIM incorporated short circuit this pin to pin Digital audio 2 0 2 6 2 9 receive 0 0 4 20 Digital audio 2 15 2 6 29 aur transmit lour lt 2mA 0 0 45 yv 22 PCM_CLK Digital audio 2 15 2 6 2 9 clock 0 0 45 24 PCM_FS Digital audio 2 15 2 6 2 9 frame sync 0 045 General Purpose I O 28 General Viu purpose I O Eet forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 75 of 88 Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 di A Differential ZO RICO 32 RS BN ae Differential RS Ha Rin Differential AVpp O aS General purpose I O 30 GPIO2 General VO purpose I O GPIO3 La N O General purpose I O GPIO4 GPIOS no General purpose I O GPIO6 go General purpose I O N O SE oe Ro General purpose I O GPIO7 go General purpose I O N GPIOS La La O Ss x_i Audio 67 SPKR_N Earpiece negative Earpiece positive RT_N Alert speak
82. xceeds 125 C Turning the H24 off Using ON_N The ON_N signal is set high using an internal pull up resistor when power is applied to H24 Asserting the ON_N signal low for a minimum of 2 seconds will turn H24 off This will initiate a normal power off process which includes disabling of all applications interfaces SIM card audio etc and closing the network connection Page 39 of 88 Z Telit H24 Hardware User Guide 1VV0300918 Rev 0 2011 04 06 YCC 2000ms min ON_N RESET_N CTS_N Figure 3 8 Turning the H24 Off Using ON_N 3 6 7 Turning the H24 off Using IGN The IGN signal may be used to power off H24 only if it was also used to power it on When the IGN signal is set low H24 will turn off This will initiate a normal power off process which includes disabling of all applications interfaces SIM card audio etc and closing the network connection VCC IGN JO00ms RESET_N CTS_N Figure 3 9 Turning the H24 Off Using IGN 3 6 8 Power Loss shut down A low power shut down occurs when H24 senses the external power supply is below the minimal operating limit The module will respond by powering down automatically without notice aay d j if Reproduction forbidden without written authorization from Telit Communications S p A All Rights Reserved Page 40 of 88 4 e 3 6 9 3 7 3 7 1 elit H24 Hardware User Guide 1VV0300918 Rev 0 2011

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