Telit Wireless Solutions SC872-A Fiche technique

SC872-A

Product User Guide

1VV0301202 Rev. 6

2019-12-05

SC872-A Product User Guide Notices

1VV0301202 Rev. 6 Page 2 of 53 2018-12-21

SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE

NOTICES

While reasonable efforts have been made to ensure 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 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 manual and the Telit products described herein may be, include or describe copyrighted

Telit material, such as computer programs stored in semiconductor memories or other media.

Laws in 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 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 Third Party supplied Software (SW) products described in this manual may

include copyrighted Telit and other Third Party supplied computer programs stored in

semiconductor memories or other media. Laws in Italy and other countries preserve for Telit and

other Third 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 Third Party supplied SW computer

programs contained in the Telit products described in this manual may not be copied (reverse

engineered) or reproduced in any manner without the express written permission of Telit or the

third-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 Third 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.

SC872-A Product User Guide Notices

1VV0301202 Rev. 6 Page 3 of 53 2018-12-21

USAGE AND DISCLOSURE RESTRICTIONS

I. 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.

II. 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

III. 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.

IV. Trademarks

TELIT and the Stylized T Logo are registered in the Trademark Office. All other product or

service names are the property of their respective owners.

V. Third Party Rights

The software may include Third Party Right software. In this case you agree to comply with all

terms and conditions imposed on you in respect of such separate software. In addition to Third

Party Terms, the disclaimer of warranty and limitation of liability provisions in this License shall

apply to the Third-Party Right software.

TELIT HEREBY DISCLAIMS ANY AND ALL WARRANTIES EXPRESS OR IMPLIED FROM

ANY THIRD PARTIES REGARDING ANY SEPARATE FILES, ANY THIRD-PARTY

MATERIALS INCLUDED IN THE SOFTWARE, ANY THIRD-PARTY MATERIALS FROM

WHICH THE SOFTWARE IS DERIVED (COLLECTIVELY “OTHER CODE”), AND THE USE OF

ANY OR ALL THE OTHER CODE IN CONNECTION WITH THE SOFTWARE, INCLUDING

(WITHOUT LIMITATION) ANY WARRANTIES OF SATISFACTORY QUALITY OR FITNESS

FOR A PARTICULAR PURPOSE.

NO THIRD PARTY LICENSORS OF OTHER CODE SHALL HAVE ANY LIABILITY FOR ANY

DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND

WHETHER MADE UNDER CONTRACT, TORT OR OTHER LEGAL THEORY, ARISING IN

ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE OTHER CODE OR THE

EXERCISE OF ANY RIGHTS GRANTED UNDER EITHER OR BOTH THIS LICENSE AND

THE LEGAL TERMS APPLICABLE TO ANY SEPARATE FILES, EVEN IF ADVISED OF THE

POSSIBILITY OF SUCH DAMAGES.

SC872-A Product User Guide Product Applicability Table

1VV0301202 Rev. 6 Page 4 of 53 2018-12-21

PRODUCT

SC872-A

Table 0-1 Product Applicability Table

PRODUCT APPLICABILITY TABLE

SC872-A Product User Guide Contents

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CONTENTS

NOTICES....................................................................................................................................2

COPYRIGHTS ............................................................................................................................2

COMPUTER SOFTWARE COPYRIGHTS..................................................................................2

USAGE AND DISCLOSURE RESTRICTIONS...........................................................................3

PRODUCT APPLICABILITY TABLE..........................................................................................4

CONTENTS ................................................................................................................................5

TABLES .....................................................................................................................................7

FIGURES....................................................................................................................................8

1INTRODUCTION.............................................................................................................9

Purpose ......................................................................................................................9

Contact and Support Information.................................................................................9

Text Conventions ........................................................................................................9

Related Publications and Downloads ........................................................................10

Related Documents and downloads........................................................................10

Related Documents Requiring a Non-Disclosure Agreement ..................................10

2PRODUCT DESCRIPTION ...........................................................................................11

Product Overview......................................................................................................11

Block Diagram...........................................................................................................12

SC872-A Block Diagram .........................................................................................12

Product Pictures........................................................................................................13

3EVALUATION KIT ........................................................................................................14

4PRODUCT FEATURES ................................................................................................16

Multi-Constellation Navigation...................................................................................16

Quasi-Zenith Satellite System (QZSS) ......................................................................16

Satellite-Based Augmentation System (SBAS)..........................................................16

SBAS Corrections...................................................................................................16

Assisted GPS (AGPS)...............................................................................................16

Locally-generated AGPS - Embedded Assist System (EASY) ................................16

Server-generated AGPS - Extended Prediction Orbit (EPO) ...................................17

Host EPO................................................................................................................17

10 Hz Navigation.......................................................................................................17

Elevation Mask Angle................................................................................................17

Static Navigation .......................................................................................................17

Jamming Rejection – Active Interference Cancellation (AIC).....................................17

Internal LNA..............................................................................................................18

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Serial I/O Port ...........................................................................................................18

Power Management Modes ......................................................................................19

Full Power Continuous Mode ..................................................................................19

Backup Mode (Perpetual) .......................................................................................20

Standby Modes.......................................................................................................20

GLP Mode ..............................................................................................................20

Periodic Modes .......................................................................................................21

AlwaysLocate™ Modes ..........................................................................................22

5DATA RETENTION.......................................................................................................23

6PRODUCT PERFORMANCE........................................................................................24

Performance – SC87x-A ...........................................................................................24

Horizontal Position Accuracy ..................................................................................24

Time to First Fix ......................................................................................................24

Sensitivity ...............................................................................................................25

Jamming Mitigation Performance example................................................................26

7MESSAGE INTERFACE ...............................................................................................27

NMEA Output Messages...........................................................................................27

Standard Messages................................................................................................27

Proprietary Output Messages .................................................................................28

NMEA Input Commands............................................................................................29

NMEA Commands List............................................................................................29

8FLASH UPGRADABILITY ............................................................................................30

9ELECTRICAL INTERFACE ..........................................................................................31

Module Pinout – SC872-A.........................................................................................31

DC Power Supply......................................................................................................32

VCC........................................................................................................................32

Battery ....................................................................................................................32

DC Power Requirements ........................................................................................32

DC Power Consumption .........................................................................................33

Digital Interface Signals ............................................................................................34

UART TX Usage .....................................................................................................34

UART Port Operation..............................................................................................34

TX/RX Signal Levels...............................................................................................34

Built-in Antenna.........................................................................................................35

RF Signal Requirements ...........................................................................................36

GNSS Antenna Polarization....................................................................................37

RF Interference.......................................................................................................37

Shielding.................................................................................................................37

10 REFERENCE DESIGN..................................................................................................38

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11 MECHANICAL DRAWINGS..........................................................................................39

Ground Plane............................................................................................................39

SC872-A Mechanical Drawings.................................................................................40

12 PACKAGING & HANDLING .........................................................................................41

Product Marking and Serialization.............................................................................41

Product Packaging....................................................................................................42

Moisture Sensitivity ...................................................................................................43

Disposal ....................................................................................................................45

Safety........................................................................................................................45

13 ENVIRONMENTAL REQUIREMENTS..........................................................................46

Operating Environmental Limits ................................................................................46

Storage Environmental Limits ...................................................................................46

14 COMPLIANCES............................................................................................................47

15 SAFETY RECOMMENDATIONS ..................................................................................48

16 GLOSSARY AND ACRONYMS....................................................................................49

17 DOCUMENT HISTORY.................................................................................................52

TABLES

Table 0-1 Product Applicability Table ........................................................................................ 4

Table 4-1 Power Management - Command summary ...............................................................19

Table 5-1 Data Retention ..........................................................................................................23

Table 6-1 Horizontal Position Accuracy.....................................................................................24

Table 6-2 Time to First Fix ........................................................................................................24

Table 6-3 Sensitivity..................................................................................................................25

Table 7-1 Default NMEA output messages ...............................................................................27

Table 7-2 Available Messages ..................................................................................................27

Table 7-3 NMEA Talker IDs ......................................................................................................28

Table 7-4 Proprietary Output Messages....................................................................................28

Table 7-5 NMEA Input Commands............................................................................................29

Table 9-1 DC Supply Voltage....................................................................................................32

Table 9-2 Power Consumption..................................................................................................33

Table 9-3 Logic Levels – TX and RX.........................................................................................34

Table 12-1 Product Label Description .......................................................................................41

Table 13-1 Operating Environmental Limits ..............................................................................46

Table 13-2 Storage Environmental Limits..................................................................................46

SC872-A Product User Guide Contents

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FIGURES

Figure 2-1 SC872-ABlock Diagram ...........................................................................................12

Figure 2-2 SC872-A Pictures ...................................................................................................13

Figure 3-1 Evaluation Kit contents............................................................................................14

Figure 3-2 SC872-A Evaluation Unit ........................................................................................15

Figure 4-1Jamming Rejection ...................................................................................................18

Figure 4-2 GNSS Low Power (GLP) mode diagram ..................................................................20

Figure 4-3 Periodic Modes diagram ..........................................................................................21

Figure 4-4 Periodic Mode example 1.........................................................................................21

Figure 4-5 Periodic Mode example 2.........................................................................................21

Figure 6-1 Jamming with AIC Disabled .....................................................................................26

Figure 6-2 Jamming with AIC Enabled ......................................................................................26

Figure 9-1 SC872-A Pin-out......................................................................................................31

Figure 10-1 SC872-A Reference Design...................................................................................38

Figure 11-1 SC872-A Ground Plane ........................................................................................39

Figure 11-2 SC872-A Mechanical Drawing ..............................................................................40

Figure 12-1 Product Label.........................................................................................................41

Figure 12-2 Tray Packaging......................................................................................................42

Figure 12-3 Moisture Sensitive Devices Label...........................................................................44

SC872-A Product User Guide Introduction

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1 INTRODUCTION

Purpose

The purpose of this document is to provide information regarding the function, features, and

usage of the Telit products listed in Table 0-1 Product Applicability Table

Contact and Support Information

For general contact, technical support services, technical questions, and to report

documentation errors contact Telit Technical Support at:

•TS-EMEA@telit.com

•TS-AMERICAS@telit.com

•TS-[email protected]

For detailed information about where you can buy the Telit modules or for recommendations on

accessories and components visit:

•http://www.telit.com

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.

Text Conventions

Dates are in ISO 8601 format, i.e. YYYY-MM-DD.

Symbol

Description

Danger – This information MUST be followed or catastrophic equipment failure

and/or bodily injury may occur.

Caution or Warning – This is an important point about integrating the product into a

system. If this information is disregarded, the product or system may malfunction or

fail.

Tip – This is advice or suggestion that may be useful when integrating the product.

SC872-A Product User Guide Introduction

1VV0301202 Rev. 6 Page 10 of 53 2018-12-21

Related Publications and Downloads

Please see http://www.telit.com/gnss/ for current documentation and downloads

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