Rainbow Electronics GT864-PY User Manual

GT864-QUAD / PY Hardware User Guide

1vv0300756

Rev.0 - 08/05/07

This document is relating to the following products:

GT864-QUAD/PY Hardware User Guide

1vv0300756 Rev.0 08/05/07

Model P/N

GT864-QUAD 4990150069

GT864-PY 4990150070

GT864-QUAD/PY Hardware User Guide

1vv0300756 Rev.0 08/05/07

Contents

1 Overview.............................................................................................................................................5

2 GT864 Terminal Interfaces...............................................................................................................6

3 Power Supply......................................................................................................................................7

3.1 Supply voltage requirements........................................................................................................7

3.1.1 Power Connector...................................................................................................................................................................7

3.1.2 Analogue Input GT864 PY Variant ...................................................................................................................................8

3.1.3 Digital Output........................................................................................................................................................................9

3.2 Power Consumption.....................................................................................................................9

3.3 Switching the GT864 Terminal ON and OFF.............................................................................10

4 Mini USB type connector................................................................................................................11

5 Antenna............................................................................................................................................14

5.1 General......................................................................................................................................14

5.1.1 Antenna type........................................................................................................................................................................14

5.1.2 Antenna placement..............................................................................................................................................................14

5.1.2.1 The antenna cable......................................................................................................................................................15

5.1.2.2 Antenna Connector...................................................................................................................................................15

6 Serial Ports.......................................................................................................................................16

6.1.1 RS232 standard interface connector................................................................................................................................16

7 Safety and Product Care..................................................................................................................17

7.1 General precautions...................................................................................................................17

7.2 SIM card precautions.................................................................................................................17

7.3 Antenna precautions ..................................................................................................................18

8 Installation of the modem................................................................................................................19

8.1 Where to install the modem.......................................................................................................19

8.2 How to install the modem...........................................................................................................20

8.2.1 Power supply........................................................................................................................................................................20

8.2.2 Securing the modem...........................................................................................................................................................20

9 SAFETY RECOMMANDATIONS.................................................................................................21

10 Conformity Assessment Issues........................................................................................................22

11 Document Change Log....................................................................................................................23

GT864-QUAD/PY Hardware User Guide

1vv0300756 Rev.0 08/05/07

DISCLAIMER

The information contained in this document is the proprietary information of Telit Communications S.p.A. and its affiliates (“TELIT”). The contents are confidential and any disclosure to persons other than the officers, employees, agents or subcontractors of the owner or licensee of this document, without the prior written consent of Telit, is strictly prohibited.

Telit makes every effort to ensure the quality of the information it makes available. Notwithstanding the foregoing, Telit does not make any warranty as to the information contained herein, and does not accept any liability for any injury, loss or damage of any kind incurred by use of or reliance upon the information.

Telit disclaims any and all responsibility for the application of the devices characterized in this document, and notes that the application of the device must comply with the safety standards of the applicable country, and where applicable, with the relevant wiring rules.

Telit reserves the right to make modifications, additions and deletions to this document due to typographical errors, inaccurate information, or improvements to programs and/or equipment at any time and without notice. Such changes will, nevertheless be incorporated into new editions of this application note.

GT864

GT864-QUAD/PY Hardware User Guide

1vv0300756 Rev.0 08/05/07

1 Overview

The aim of this document is the description of some hardware solutions useful for developing a product with the Telit GT864-QUAD/PY Terminal.

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 shall be considered as mandatory, while the suggested hardware configurations shall not be considered mandatory, instead the information given shall be used as a guide and a starting point for properly developing your

product with the Telit GT864-QUAD/PY Terminal. For further hardware details that may not be explained in this document refer to the Telit GT864-QUAD/PY Product Description document where all the hardware information is reported.

NOTICE

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, nor any infringement of patents or other rights of third parties which may result from its use. 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.

GT864-QUAD/PY Hardware User Guide

1vv0300756 Rev.0 08/05/07

2 GT864 Terminal Interfaces

The interfaces of the GT864 Terminal are the following industry standard connectors distributed on the front and rear panels, see figures below.

•

RJ11 6-way (power connector) Analog audio (GT864-QUAD only) 4 Input (GT864-PY only) SIM card reader FME male coaxial jack (antenna connector) Sub-D socket, 9 pin (RS232 serial port)

GT864-QUAD/PY Hardware User Guide

1vv0300756 Rev.0 08/05/07

3 Power Supply

3.1 Supply voltage requirements

The DC power supply must be connected to the POWER input:

• Input voltage range 5 - 36V DC

• Nominal Voltage 12V DC

Application of the supply voltage does not switch the modem on. To do so an additional active-high control signal, TO_IN, must be applied for > 0.2s. Please see chapter 3.3 Switching on the modem for further important details about TO_IN and power supply requirements, especially if TO_IN is applied in parallel to VCC.

VCC and GND are reverse-polarity and over-voltage protected. Please note: this does not apply for the GND on the antenna connector if this coax GND/shield is connected to your applications groundplane.

NOTE: In case that power supply equipment is to be ordered, its conformity needs to be verified with the mains supply voltage, frequency, connector type and other national requirements (e.g. certifications) in the countries of its use.

3.1.1 Power Connector

An RJ11 6-way connector, as shown and described below, serves as a means of supplying and controlling DC power to the modem.

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