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This document contains information proprietary to Ericsson Mobile Data Design AB. No part of this publication may be reproduced, stored in a retrieval system, transmitted in any form by any means, including photocopying, electronic, mechanical, recording or otherwise, without the prior consent of the copyright holder. )LUVW HGLWLRQ 6HSWHPEHU This manual is published by Ericsson Mobile Data Design AB without any warranty.
&RQWHQWV 1 Safety advice and other precautions ............................................................ 1 1.1 Safety................................................................................................ 1 1.2 Product care...................................................................................... 2 2 About this Manual ....................................................................................... 3 2.1 Purpose of this Manual...................................................
M3090 Integrator’s Manual 7 Type Approval........................................................................................... 39 7.1 Requirements in the USA............................................................... 39 Doc.
Safety Advice 1 6DIHW\ DGYLFH DQG RWKHU SUHFDXWLRQV The M3090 radio modem should be handled like any other mobile radio station. Therefore, you – the integrator – should read this information before integrating the modem with your application. 6DIHW\ • The radio modem must not be used with or close to any medical life support equipment. • Used in proximity to personal medical electronic devices, such as pacemakers or hearing aids, the modem may present a hazard.
2 M3090 Integrator’s Manual 3URGXFW FDUH • Do not expose the radio modem to environmental or electrical loads beyond the limits specified in FKDSWHU ³7HFKQLFDO 'DWD´. Any such exposure may damage the modem. • Make sure to connect the antenna EHIRUH the system connector. Operating the modem without an antenna may cause severe damage. • Do not connect more than one modem to a single antenna. Radio frequency energy from the transmitter of one modem may damage another unit.
About this Manual $ERXW WKLV 0DQXDO 3XUSRVH RI WKLV 0DQXDO 3 This manual describes the M3090 radio modem and defines what is required from the host equipment and the environment in which the modem is to be integrated. The manual also provides technical data and background information about antennas and the Mobitex system.
4 M3090 Integrator’s Manual +RZ WR 8VH WKLV 0DQXDO To get an understanding of the basics of a Mobitex network and the function of the M3090 radio modem, read FKDSWHU ³,QWURGXFWLRQ´. Readers who are not familiar with the basics of antenna selection and design should also read FKDSWHU ³$ERXW $QWHQQDV´. The following two, FKDSWHU ³7HFKQLFDO 'DWD´ and FKDSWHU ³+RVW 5HTXLUHPHQWV´, contain information that is useful when planning the integration of the modem.
About this Manual 5 7HUPLQRORJ\ The following terminology is used in this manual: • The M3090 wireless modem is called the UDGLR PRGHP. • The data equipment which uses the radio modem to communicate with the radio base station is called the KRVW. • The data equipment and the radio modem, used as a single integrated unit, is called the WHUPLQDO. • An OEM company that integrates M3090 radio modems with various host equipment is called an LQWHJUDWRU.
6 M3090 Integrator’s Manual 5HIHUHQFHV DQG 3URGXFWV • Mobitex Interface Specification (MIS), LZBA 703 1001 • Data Communication over the telephone network. Recommendation V.24, CCITT, Fascicle VIII.I, 1988 • M3090 Product Description, AE/LZT 123 2070 • M3090 Integrator’s Kit, KRY 901 46 Doc.
Introduction 7 ,QWURGXFWLRQ This chapter introduces the Mobitex system, the M3090 radio modem and the mode of communication between a radio modem and its host equipment. 7KH 0RELWH[ 1HWZRUN The M3090 radio modem operates through a Mobitex network, a radio network for data communication. The network consists, mainly, of exchanges, radio base stations, fixed terminals and mobile terminals.
8 M3090 Integrator’s Manual )L[HG WHUPLQDOV A fixed terminal is connected to the network by landline facilities. 0RELOH WHUPLQDOV A mobile terminal communicates with radio base stations via a radio modem. 5DGLR EDVH VWDWLRQV DQG ([FKDQJHV Radio base stations direct data to and from the fixed and mobile terminals in their coverage area.
Introduction 7KH 0 5DGLR 0RGHP *HQHUDO 9 By running an application program on the host, a user can transmit and receive data to and from the Mobitex network. The M3090 radio modem operates in half duplex mode when communicating with the network, and in full duplex mode when communicating with the host.
10 M3090 Integrator’s Manual 7UDQVPLWWHU The transmitter is turned on when the radio modem: • is about to become active in the network • transmits data, i.e.
Introduction 11 3RZHU Power is supplied through the system connector. The required voltage is 6-9 V DC (nominally 7.5 V). 3RZHU 2SHUDWLQJ 0RGHV When the radio modem is powered, it operates in one of the following three modes: • sleep • receiving • transmitting Unless communication within the Mobitex network is very intense, the radio modem spends most of its time in the sleep mode. In this mode, the modem waits for host requests and the air interface is inactive.
12 M3090 Integrator’s Manual +RVW &RPPXQLFDWLRQ *HQHUDO The radio modem communicates with the host equipment through the system connector. A 30 pin MINI-FIX connector (from ODU) is used as a physical interface. $SSOLFDWLRQ 6RIWZDUH The integrator may develop application software (and the MASC/MPAK driver) or use a MASC/MPAK API, which can be bought from Ericsson as a part of the M3090 Integrator’s Kit. 6HULDO &RPPXQLFDWLRQ The M3090 radio modem uses serial communication.
About Antennas 13 $ERXW $QWHQQDV This chapter contains some antenna-technology basics. It is intended to help integrators with little previous experience to select an antenna for the host with which the M3090 radio modem is to be integrated. If a non-standard antenna has to be designed, please consult an antenna specialist. 7KH )XQFWLRQV RI DQ $QWHQQD An antenna has two functions: • to emit radio waves (transmission) • to pick up radio waves (reception).
14 M3090 Integrator’s Manual $QWHQQD /HQJWKV The following lengths are typical for half-wave and quarter-wave antennas in the frequency range that the M3090 radio modem uses. The lengths given will vary for a specific realisation, depending on the material that surrounds the core of the antenna. If in doubt, refer to the documentation included with the antenna. Frequency range Half-wave antenna length Quarter-wave antenna length 890 to 960 appr. 160 mm appr.
About Antennas 15 $QWHQQD *DLQ Antenna gain is defined as the ratio between the antenna’s radiant intensity and that of a reference antenna which experiences no loss, but has the same power input. Antenna gain is usually expressed in dBi, the i indicating that the calculated radiation from an isotropic antenna has been used as a reference. The isotropic antenna has the same radiant intensity in all directions, that is, the radiation pattern is spherical.
16 M3090 Integrator’s Manual 7KH 0 $QWHQQD An antenna cable is required to connect an antenna to the M3090 modem’s antenna connector, that is, a detached antenna is used. A detached antenna should consist of three parts: the antenna rod, an impedance matching network and a coaxial cable with a connector. A detached antenna may be more effective than other types, especially when the radio terminal is used in a vehicle. $QWHQQD 5RG A half-wave dipole antenna should preferably be used.
About Antennas 17 $QWHQQD 6XSSOLHUV The following two antennas, one for portable and one for mobile applications, perform well and have been used during certification to verify SAR limit and FCC RF exposure compliance: Application: Model: Supplier: Comment: Portable antenna (portable applications) SMA900 Carant Antenn AB, PO Box 4064, S-182 04 Enebyberg, Sweden Tel: +46 8-792-92-00, Fax: +46 8 792 06 77, E-mail: market.dept@carant.se http://www.carant.
18 M3090 Integrator’s Manual Application: Model: Supplier: Comment: Car antenna (intended for ‘mobile’ applications) SN8962N Cushcraft Corporation, 48 Perimeter Rd., Manchester N.H., 03103, U.S.A. Tel: +1 603-627-7877, E-mail: sales@cushcraft.com http://www.cushcraft.com/ Omni-directional wire, standard RG58 cable, N connector (male) A ‘mobile’ (vehicle-mount) antenna should be LQVWDOOHG with a separation distance of FP or more from persons to satisfy mobile operating requirements.
Technical Data 7HFKQLFDO 'DWD 3K\VLFDO 'DWD 19 Weight 41 g (approx. 1.5oz.) Main dimensions See )LJXUH m Max Thickness= 12.9 mm 10 46 .4 m 2. 9 m m Antenna Connector System Connector Through-holes for screw mounting (4x) 8/LZE 401 182 R1 )LJXUH 0DLQ GLPHQVLRQV IRU WKH 0 UDGLR PRGHP M3090 Integrator’s Manual, Doc.
20 M3090 Integrator’s Manual &RQQHFWRUV DQG /RJLFDO ,QWHUIDFHV Antenna connector SMT socket (50 Ω ) Supplier: M/A Com, http://www.macom.com, Product No. 2367 - 5002 - 54 System connector 30-pin MINI-FIX connector. For pin configuration, see &KDSWHU and )LJXUH below. Supplier: ODU, http://www.odu.de, Product No. 515.568.035.030.050 Mating connectors - System connector Board-board ODU, Product No. 525.041.035.030.xxx Board-cable - Socket ODU, Product No. 525.060.035.030.
Technical Data 21 6\VWHP &RQQHFWRU 3LQ FRQILJXUDWLRQ 10/LZE 401 182 R1 )LJXUH 7KH UDGLR PRGHP V V\VWHP FRQQHFWRU 3LQ 1R 6\PERO 'HVFULSWLRQ 1 Supply voltage Incoming feed (6-9 V) 2 Supply voltage Incoming feed (6-9 V) 3 Test Leave unconnected 4 Reset Reset (input; active low) 5 Spare Reserved 6 RD Serial data from modem 7 TD Serial data to modem 8 RTS Request To Send (input), must be terminated 9 CTS Clear To Send (output) 10 DTR Data Terminal Ready (input)
22 M3090 Integrator’s Manual 3LQ 1R 6\ PERO 'HVFULSWLRQ 14 GND Ground 15 Spare Reserved 16 Spare Reserved 17 SCL I2C Clock 18 SDA I2C Data 19 VDD Logical reference +3.3 V 20 BIN1_IN Binary1 IN 21 BIN2_IN Binary2 IN 22 BIN3_OUT Binary3 OUT 23 BIN4_OUT Binary4 OUT 24 WAKE/Systemstart Switch main regulator ON (input; active low) 25 GND Ground 26 DOWNLOAD Download 27 AD_OUT User analog OUT 28 GND Ground 29 GND Ground 30 AD_IN User analog IN Doc.
Technical Data 23 6\VWHP &RQQHFWRU 3LQ RULHQWDWLRQ 1 2 3 29 4 30 2/LZE 401 182 R1 )LJXUH +LQWV 6\VWHP FRQQHFWRU SLQ RULHQWDWLRQ 1. The DSR signal is not available at the M3090 serial interface. Certain older Mobitex applications require the signal to be set by the modem. Workaround: connect DTR and DSR on the host system side for compatibility with these old Mobitex applications. 2. Signal RTS (pin 8 of the system contact (input)) must always be terminated.
24 M3090 Integrator’s Manual 3RZHU 6XSSO\ Operating voltage 6 - 9 V (7.2 V nominal) Current consumption See &KDSWHU below Maximum ripple See &KDSWHU below DC characteristics, System Connector See &KDSWHU below &XUUHQW FRQVXPSWLRQ 7RWDO FXUUHQW 2SHUDWLRQDO PRGH &XUUHQW 'HVFULSWLRQ FRQVXPS WLRQ Sleep mode The radio modem’s logic part is on and the radio part is off. 85 mA Receiving mode The modem is on and receiving data or control signals from the Mobitex network.
Technical Data 25 0D[LPXP ULSSOH Ripple on power supply voltage at system connector, maximum values:DC 9 )UHTXHQF\ < 100 Hz 150 mVRMS 100 Hz to 10 kHz 100 mVRMS 10 to 440 kHz 50 mVRMS 440 to 460 kHz 5 mVRMS 460 kHz to 94 MHz 50 mVRMS 94 to 96 MHz 1 mVRMS 96 to 850 MHz 50 mVRMS 850 to 950 MHz 1 mVRMS '' SLQ &KDUDFWHULVWLFV IRU WKH 6\VWHP &RQQHFWRU 6\PERO 3DUDPHWHU 0LQ 0D[ 8QLW 1RWHV VIL Input Voltage, Low 0 0.8 V VIH Input Voltage, High 2.
26 M3090 Integrator’s Manual (QYLURQPHQWDO 6SHFLILFDWLRQV The M3090 radio modem has been tested in accordance with the IEC 60068, IEC 61000 and ISO 7816 standards. The environmental tests are divided into four groups: • Transport/storage • Climatic • Mechanical • Electrical The modem satisfies the requirements specified under each group below. 7UDQVSRUW VWRUDJH Tested unit: Radio modem in delivery package, non-operating (VDD=0).
Technical Data 27 0HFKDQLFDO Tested unit: Radio modem, non-operating (supply voltage=0) unless otherwise stated below. Random vibration (operating) Sinus vibration, endurance Sinus vibration, radio resonance investigation Free fall 0.03 g2/Hz 0.03 → 0.01 g2/Hz 0.
28 M3090 Integrator’s Manual (OHFWULFDO Tested unit: Radio modem, operating Electrostatic discharge contact 4.0 kV air 8.0 kV (antenna) Immunity, radiated electromagnetic field Severity 10 V/m Ripple See “Maximum ripple” on page 25 6DIHW\ 6SHFLILFDWLRQV Components and materials comply with the EN60950 standard (European Standards – CENELEC – Safety of Information Technology Equipment, including electrical business equipment). Doc.
Technical Data 29 5DGLR 6SHFLILFDWLRQV Transmitter frequencies 896.0 to 902.0 MHz1 Receiver frequencies 935.0 to 941.0 MHz1 Data transfer rate 8 kbps (gross rate) Channel separation 12.5 kHz Channel selection automatic roaming Frequency stability 1.5 ppm ( ≈ 1.35 kHz) Receiver sensitivity -115 dBm Modulation modified GMSK Transmitter output 2 W maximum; Power attenuation in 3 dB steps, down to -21 dB relative to maximum output.
30 M3090 Integrator’s Manual ([WHUQDO $QWHQQD 6SHFLILFDWLRQV Antenna impedance (nominal) 50 Ω Frequency range 890 - 960 MHz Recommended antenna gain 2 dBi Voltage to Standing Wave Ratio (VSWR) max. 2 Recommended antenna length approx. 160 mm (half-wave) Polarization vertical Half-power beam-width, horizontal 80 ° vertical 360 ° Recommended cable length 0.75 m Connector type (on radio modem) SMT (from M/A Com), see )LJXUH Humidity max. 95% RH 2.1 mm 5.0 mm 4.
Host Requirements 31 +RVW 5HTXLUHPHQWV This chapter presents the requirements, technical and environmental, that have to be considered when integrating M3090 radio modems with host equipment. +RVW (QYLURQPHQW The host must provide a physical environment where the radio modem is not exposed to temperatures, humidity etc. beyond what it is designed for.
32 M3090 Integrator’s Manual ,QWHJUDWRU¶V .LW To facilitate the integration of the M3090 radio modem, Ericsson supplies an Integrator’s Kit (Product No. KRY 901 46). The kit contains: • The MobiOne configuration software (Windows 95/NT compatible) for the setting of a Mobitex Access Number, country code(s) etc. before the modem is used in a Mobitex network. • MASC-Driver, with source code. • IP-Gateway/MASC Demo “Hello World”. • 1 Interface Converter, 3.3V-CMOS / V.28, ROA 117 9629.
Host Requirements 33 3K\VLFDO LQVWDOODWLRQ RI WKH 5DGLR 0RGHP Place the radio modem so that it is protected from pollution, vibrations and shock. Avoid placing the modem close to any circuit that is likely to cause interference. Secure the modem correctly to prevent it from falling out when transporting or moving the host equipment. The antenna should preferably be fitted so that it is always vertical, regardless of the host equipment’s position. 13.
34 M3090 Integrator’s Manual 9 WR 9 &RQYHUVLRQ If the host equipment uses 5 V logic, the electrical interface needs to be converted to 3.3 V. )LJXUH below shows an example of how to implement such a conversion. 19 VDD 3.3 V DC 50k 50k 3.3V 5V 3/LZE 401 182 R1 )LJXUH 9 WR 9 &RQYHUVLRQ Doc.
Host Requirements 35 21 2)) IXQFWLRQ An ON/OFF function can be implemented using standard MASC-commands, see )LJXUH .
36 M3090 Integrator’s Manual &RROLQJ Normally, no special measures are needed to cool M3090 radio modems. However, if ambient temperature exceeds +65 ° C (see &KDSWHU .), cooling will be required, otherwise the modem may over-heat and lose contact with the network. The heat dissipation of an M3090 radio modem varies depending on the volume of data being transmitted. In normal use, when the modem transmits less than 1% of the time, the power consumption is less than 300 mW.
Host Requirements 37 6HOHFWLQJ DQ $QWHQQD The antenna must be designed for the frequency range used by the radio modem. The antenna must have the same impedance as the card’s antenna connector, otherwise the transmitter’s output power will be reduced. For information on radio frequencies and connector data, see FKDSWHU ³7HFKQLFDO 'DWD´. Perform the tests described – under Integration Tests – in the Integrator’s Kit to find out whether the selected antenna suits the host in question.
38 M3090 Integrator’s Manual &RQQHFWLQJ WKH 5DGLR 0RGHP WR WKH +RVW Taking customary precautions against ESD, proceed as follows: 1. Mechanically fix the radio modem to the host. 2. Connect the antenna cable to the modem’s antenna connector. If a separate antenna cable is used, make sure that the antenna rod is also connected. 1RWH Operating the modem without an antenna may cause severe damage. 3. Connect the male system connector plug to the socket on the modem. Doc.
Type Approval 39 7\SH $SSURYDO Any two-way communication radio, such as the M3090 radio modem, must be type-approved by the appropriate authorities before it can be sold and used in a country. Most countries have their own national bodies for type approvals, but a number of European Community member countries share a common authority. These authorities grant type approvals to radios that have been successfully tested by a certified radio test laboratory.
40 M3090 Integrator’s Manual 9HULILFDWLRQ DQG /DEHOOLQJ Compliance with applicable standards must be verified by the manufacturer of the host equipment and stated on the integrated product. The type approval information for the radio modem must also be stated. 7KH 0RGHP The radio modem is delivered with the required type approval information shown on a label applied to it, see )LJXUH . )LJXUH Label applied to the radio modem. 7KH 0RGHP 'HOLYHU\ 3DFNDJH The radio modem is delivered in a
Type Approval 41 7KH 3URGXFW The integrated product should have a label in the format shown in )LJXUH .
42 M3090 Integrator’s Manual Doc.
Index ,QGH[ $ antenna 13 cable 16 connecting 37 connector 20 connector type 30 functions 13 gain 15 ground plane 14 impedance 30 length 14 polarization 14 rod 16 selecting 37 suppliers 17 application software 12 % base station 8 beam-width, half-power 30 & channel selection 29 separation 29 connecting modem to host 38 connectors and logical interfaces 20 cooling 36 current consumption 23 M3090 Integrator’s Manual, Doc.
ii (vi) M3090 Integrator’s Manual ' data transfer rate 29 DC characteristics, system connector 25 ( electrical interface, conversion from 5 V 34 electromagnetic field, immunity 28 electrostatic discharge 28 environmental specifications 26 electromagnetic field, immunity 28 electrostatic discharge 28 free fall 26, 27 relative humidity 26 shock 27 temperature range 26 vibration 27 X-ray exposure 26 Ericsson to contact 4 ESD protection 36 exchange 8 explosive environment 1 ) fixed terminal 8 free fall 26, 27
Index + half-power beam-width 30 host communication 12 definition 5 Requirements 31 , integrator, definition 5 0 medical life support equipment, use with 1 micro controller 10 mobile terminal 8 Mobitex network 7 modulation 29 MPAK 8 2 ON/OFF function 35 operating voltage 23 3 personal medical electronic devices, use with 1 physical data 19 physical installation 33 pin configuration, system connector 21 pin orientation, system connector 22 polarization, antenna 14 power operating modes 11 M3090 Integrator’
iv (vi) M3090 Integrator’s Manual power supply 23 current consumption 23 maximum ripple 24 operating voltage 23 precautions 1 product care 2 4 questions and comments 4 5 radio base station 8 radio specifications 29 range, maximum 15 receiver 10 frequencies 29 sensitivity 29 relative humidity 26 ripple, maximum 24 6 safety advice 1 safety specifications 28 shielding 36 shock 27 system connector 20 7 technical data 19 temperature range 26 terminal, definition 5 terminology 5 transfer rate, data 29 Doc.
Index transmitter 10 frequencies 29 output 29 type approval 39 labelling 40 9 vibration 27 Voltage to Standing Wave Ratio 16, 30 voltage, operating 23 VSWR 30 calculating 16 ; x-ray exposure 26 M3090 Integrator’s Manual, Doc.
(ULFVVRQ 0RELOH 'DWD 'HVLJQ $% Technical Assistance Centre S:t Sigfridsgatan 89 S-412 66 Göteborg, SWEDEN Fax: +46 31 703 6033 E-mail: mobitex.tac@erv.ericsson.
