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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 possible 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 Italy 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 manual
may include copyrighted Telit and other 3rd Party supplied computer programs stored in
semiconductor memories or other media. Laws in the Italy 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.
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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 is
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
TELIT and the Stylized T Logo are registered in Trademark Office. All other product or
service names are the property of their respective owners.
Copyright © Telit Communications S.p.A. 2013.
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The aim of this document is the description of some hardware solutions useful for developing
a product with the Telit HE910-EU/EUG V2 HE910-NA/NAG V2 module. All the features
and solutions detailed are applicable to all HE910 V2, whereas “HE910 V2” is intended the
modules listed in the applicability table.
When a specific feature is applicable to a specific product, it will be clearly highlighted.
This document is intended for Telit customers who are about to implement their applications
using our HE910 V2 modules.
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.php
For detailed information about where to 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. Please keep us informed of comments
and suggestions for improvements.
Telit appreciates feedback from the users of our information.
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This document contains the following chapters:
Chapter 1: “Introduction” provides a scope for this document, target audience, contact and
support information, and text conventions.
Chapter 2: “General Product Description” gives an overview of the features of the product.
Chapter 3: “HE910 V2 Module Connections” deals with the pin out configuration and layout.
Chapter 4: “Hardware Commands” How to operate the module via hardware.
Chapter 5: “Power supply” Power supply requirements and general design rules.
Chapter 6: “Antenna” The antenna connection and board layout design are the most important
parts in the full product design.
Chapter 7: “USB Port” The USB port on the Telit HE910 V2 is the core of the interface
between the module and OEM hardware.
Chapter 8: “Serial ports” Refers to the serial ports of the Telit HE910 V2.
Chapter 9: “Audio Section overview” Refers to the audio blocks of the Base Band Chip of the
HE910 V2 Telit Module.
Chapter 10: “General Purpose I/O” How the general purpose I/O pads can be configured.
Chapter 11: “DAC and ADC section” Deals with these two kinds of converters.
Chapter 12: “Mounting the Module on the application board” Mechanical dimensions and
recommendations on how to mount the module on the user’s board.
Chapter 13: “Packing System” Deals with packing system.
Chapter 14: “Application Design Guide” Deals with the application design of host system.
Chapter 15: “Conformity Assessment Issues” provides some fundamental hints about the
conformity assessment that the final application might need.
Chapter 16: “Safety Recommendation” provides some safety recommendations that must be
followed by the customer in the design of the application that makes use of the Telit HE910
V2.
Chapter 17: “Document History”
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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.
All dates are in ISO 8601 format, i.e. YYYY-MM-DD.
HE910 V2 Product Description, 80418ST10602A
HE910 V2 Software User guide, 1vv0301071
HE910 V2 AT command reference guide, 80428ST10592A
HE910 V2 Digital Voice Interface Application Note, 80000NT10101A
Telit EVK2 User Guide, 1vv0300704
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The aim of this document is the description of some hardware solutions useful for developing
a product with the Telit HE10 V2 module.
In this document all the basic functions of a mobile phone will be taken into account; for each
one of them a proper hardware solution will be suggested and eventually the wrong solutions
and common errors to be avoided will be evidenced. Obviously this document cannot
embrace the whole hardware solutions and products that may be designed. The wrong
solutions to be avoided must be considered as mandatory, while the suggested hardware
configurations must not be considered mandatory, instead the information given must be used
as a guide and a starting point for properly developing your product with the Telit HE10 V2
module.
NOTE:
The integration of the GSM/GPRS/EGPRS/WCDMA/HSPA+ HE910 V2 cellular module
within user application must be done according to the design rules described in this manual.
The information presented in this document is believed to be accurate and reliable. However,
no responsibility is assumed by Telit Communication S.p.A. for its use, such as any
infringement of patents or other rights of third parties. No license is granted by implication or
otherwise under any patent rights of Telit Communication S.p.A. other than for circuitry
embodied in Telit products. This document is subject to change without notice.
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EMEA/APAC/Latin American markets
The Telit HE910 V2 module overall dimensions are:
• Length: 28.2 mm
• Width: 28.2 mm
• Thickness: 2.2 mm
The module weight of HE910 V2 is about 4.0 gram.
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Operating Temperature Range
Storage and non-operating
Temperature Range
As a part of Telit’s corporate policy of environmental protection, the HE910 V2 complies
with the RoHS (Restriction of Hazardous Substances) directive of the European Union (EU
directive 2011/65/EU).
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The operating frequencies in GSM850, EGSM900, DCS1800, PCS1900, WCDMA modes are
conformed to the 3GPP specifications.
WCDMA850
(HE910-NA/NAG
V2 only)
Tx: 4132 ~ 4233
Rx: 4357 ~ 4458
WCDMA900
(HE910-EU/EUG
V2 only)
Tx: 2712 ~ 2863
Rx: 2937 ~ 3088
WCDMA1900
(HE910-NA/NAG
V2 only)
Tx: 9262 ~ 9538
Rx: 9662 ~ 9938
WCDMA2100
(HE910-EU/EUG
V2 only)
Tx: 9612 ~ 9888
Rx: 10562 ~ 10838
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USB HS 2.0 Communication Port
Power sense for the internal USB transceiver
Asynchronous UART – Prog. / data +HW Flow Control
Serial data input from DTE
Serial data output to DTE
Input for Data terminal ready signal (DTR) from DTE
Input for Request to send signal (RTS) from DTE
Output for Clear to send signal (CTS) to DTE
Output for Data carrier detect signal (DCD) to DTE
Output for Data set ready signal (DSR) to DTE
Output for Ring indicator signal (RI) to DTE
Asynchronous Auxiliary UART
Auxillary UART (TX Data to DTE)
Auxillary UART (RX Data from DTE)
External SIM signal - Power supply for the SIM
External SIM signal – Presence(active low)
External SIM signal – Data I/O
External SIM signal - Clock
External SIM signal - Reset
Digital Voice interface (DVI)
Digital Voice interface (WA0)
Digital Voice interface (RX)
Digital Voice interface (TX)
Digital Voice interface (CLK)
Analog/Digital converter input
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Output enable for External LNA supply
Hardware unconditional shutdown
Input Command for Power ON/Software shutdown
Supply Output for external accessories / Power ON
Monitor
Main Power Supply (Baseband)
Main Power Supply (Baseband)
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WARNING:
Reserved pins must not be connected.
NOTE:
The following table is listing the main Pinout differences between the HE910 V2 variants.
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NOTE:
DTR pin must be connected in order to enter HE910 V2’s power saving mode.
RI pin must be connected in order to wake up the host when a call is coming in sleep mode of
host.
NOTE:
Almost all pins not in use must be left disconnected. The only exceptions are the following
pins:
E1,G1,H1,J1,L1,A2,
E2,F2,G2,H2,J2,K2,
L2,R2,M3,N3,P3,R3,
D4,M4,N4,P4,R4,N5
,P5,R5,N6,P6,R6,P8,
R8,P9,P10,R10,M12,
B13,P13,E14
If not used should be connected to
a Test Point
If not used should be connected to
a Test Point
If not used should be connected to
a Test Point
If not used should be connected to
a Test Point
If not used should be connected to
a Test Point
If the flow control is not used it
should be connected to GND
If not used should be connected to
a Test Point
If not used should be connected to
a Test Point
If not used should be connected to
a Test Point
ANT_GPS (If supported by
the product)
If the GPS is not used it could be
left unconnected
RTS must be connected to the GND (on the module side) if flow control is not used.
The above pins are also necessary to debug the application when the module is assembled on
it so we recommend connecting them also to dedicated test point.
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NOTE:
The pin defined as RES must be considered RESERVED and not connected on any pin in the
application. The related area on the application has to be kept empty.
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NOTE:
The pin defined as RES must be considered RESERVED and not connected on any pin in the
application. The related area on the application has to be kept empty.
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To turn on the HE910 V2, the pad ON_OFF* must be tied low for at least 1 second and then
released.
The maximum current that can be drained from the ON_OFF* pad is 0.1 mA.
A simple circuit to power on the module is illustrated below:
Upon turning on HE910 V2 module, the HE910 V2 module is not active yet because the boot
sequence of HE910 V2 is still executing internally. It takes about 10 seconds to complete the
initialization of the module internally.
For this reason, it would be useless to try to access HE910 V2 during the Initialization state as
below. The HE910 V2 module needs at least 10 seconds after the PWRMON goes High to
become operational by reaching the activation state.
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During the Initialization state, any kind of AT-command is not available. DTE must wait for
the Activation state to communicate with HE910 V2.
To check if the HE910 V2 has powered on, the hardware line PWRMON must be monitored.
When PWRMON goes high, the module has powered on.
NOTE:
Do not use any pull up resistor on the ON_OFF* line. It is pulled up internally. Using a pull
up resistor may bring latch up problems on the HE910 V2 power regulator and improper
power on/off of the module. The line ON_OFF* must be connected only in open collector
configuration.
NOTE:
In this document all the lines are inverted. Active low signals are labeled with a name that
ends with "*" or with a bar over the name.
NOTE:
In order to avoid a back powering effect it is recommended to avoid having any HIGH logic
level signal applied to the digital pins of the HE910 V2 module when the module is powered
OFF or during an ON/OFF transition.
For example:
1. To drive the ON_OFF* pad with a totem pole output of a +3/5 V microcontroller
(uP_OUT1):