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Functional Description

10/2003

Operating Instructions SRIF 2002

Page 22 of 33

 Radio 

path:

The radio path in open space is the most optimal one.
Stationary obstacles (e.g. walls or metallic objects) limit the transmission range
and movable or smaller objects (also humans) also influence the radio path.
Since the radio transmission in this frequency range is not only carried out
directly, but also via reflexions, other paths are also possible (multipath
propagation).

Summary of Contents for ECOS SRIF 2002

Page 1: ...ECOS SRIF 2002 Operating Instructions Edition 10 2003 ...

Page 2: ...t Printed in the Federal Republic of Germany Safety instructions This document contains instructions you are strongly advised to observe in order to guarantee your personal safety and to avoid personal damages The instructions are marked by a warning triangle and depending on the degree of risk are presented as follows Warning means that death or serious physical injuries may be caused if you do n...

Page 3: ...am 11 3 Functional Description 13 3 1 Radio transmission 14 3 2 Parameterization via the parallel interface 15 3 3 Serial parameterization 17 3 4 Serial data interface 20 3 5 Notes on the radio operation 21 4 Settings 23 4 1 Settings for the DIP switch 24 4 2 Settings for the operation in the MDA SDA 25 4 3 Settings for the operation in the hand held terminal 25 5 Maintenance and Care 27 6 Technic...

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Page 5: ...ting Instructions SRIF 2002 Page 5 of 33 General 1 1 1 Short description 6 1 2 Definition of terms 6 1 3 Important instructions 7 1 3 1 General instructions 7 1 3 2 Certificates guidelines and declarations 8 ...

Page 6: ...n the 5 8 GHz ISM band 1 2 Definition of terms BA Battery Adapter ECOS Electrical Check Out System ECOS i Electrical Check Out System intelligent FCC Federal Communications Commission FSK Level Frequency Shift Keying HT Hand held Terminal ISM Industrial Scientific and Medical Applications LSB Least Significant Bit MDA Mobile Diagnosis Adapter MMCX Type RF connector with latching element MPS Mobile...

Page 7: ...ines Modules with ESD electrostatically sensitive devices may be marked by the following label If you use modules with ESD you are urgently required to observe and follow the following guidelines Before you start to work with modules including ESD you must discharge yourself electrostatically e g by touching an earthed object All devices and tools used must be free of static charge Withdraw the po...

Page 8: ...harmonized European standards EN published in this context SRIF 2002 complies with national and international standards Radio installations with the SRIF 2002 are ready for approval world wide Any emitted interferences in the transmit and receive mode comply with EN 300 440 09 2001 Note on the Declaration of Conformity In accordance with the above mentioned EC guideline the EC conformity declarati...

Page 9: ...sted in these Operating Instructions must be observed for commissioning and operation DIN ISO 9001 certificate The quality management system of our complete product generation process development production and distribution complies with the DIN ISO 9001 requirements corresponds to EN29001 1987 This device is labelled with an FCC ID number If this label is not visible when installed in an end devi...

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Page 11: ... SRIF 2002 Page 11 of 33 Block Diagram 2 Figure 1 Block diagram of the SRIF 2002 Proces sing HF antenna terminal MMCX socket DIP switch Data interface Parallel parameterization interface HF transmitter Para meter PIN 1 PIN 1 ...

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Page 13: ...s SRIF 2002 Page 13 of 33 Functional Description 3 3 1 Radio transmission 14 3 2 Parameterization via the parallel interface 15 3 3 Serial parameterization 17 3 4 Serial data interface 20 3 5 Notes on the radio operation 21 ...

Page 14: ...el interface all switches open The SRIF 2002 supplies an analog RSSI signal The SRIF 2002 operates in the half duplex mode The SRIF 2002 is in the receive mode as a standard As soon as any transmission data are applied to the data input TXD and the control signal pin2 is set to TX the module switches to the transmit mode and transmits the data Figure 2 Schematic representation of the radio transmi...

Page 15: ...n with the help of the additional asynchronous serial interface UART protocol 4800 baud 8N1 see Chapter 3 3 Serial parameterization page 17 The following settings have to be carried out Baud rate setting The SRIF 2002 carries out the setting of the DIP switch after every power on reset See Chapter 4 Settings page 23 for a table listing of the settings Channel setting 8 pole plug in connector Molex...

Page 16: ...2 Page 16 of 33 The coding switch to be connected short circuits the selected address lines with the reference line inverse logic Due to the missing eighth address line the settings on the coding switch starting from 8x are interpreted as entries starting from 0x ...

Page 17: ...numeric characters only the fourth character is always If a valid command has been detected the SRIF 2002 responses unless it is a version inquiry with the string sent via the RxD line pin 4 The response is also carried out with the UART protocol 4800 baud 8N1 Note Communication via the additional asynchronous serial interface is only possible if the parallel interface is disconnected or the word ...

Page 18: ... 995 RSSI voltage RSSI extension The SRIF 2002 offers two settings for the output of RSSI voltage With the RSSI extension activated in the delivery state the SRIF 2002 always raises the RSSI voltage to a level of approx 4V if received data are output at pin 4 RxD If the RSSI extension is switched off the RSSI level is not raised to 4 Volt during the data output RSSI extension Data string ON 997 OF...

Page 19: ...l Channels switch SRIF 2000 998 999 is also output to ensure compatibility with the SRIF2000 This switch has no function for the SRIF2002 The version number lies within the range of 200 and 299 The individual pieces of information are separated from each other by and are contained in the response string in the above mentioned sequence 202 035 994 997 998 Example response Data string Version number...

Page 20: ...SerIN Pin 3 Input digital Asynchronous serial programming interface RxD Pin 4 Output digital Received data Output of the received data in the receive mode PWR Pin 5 Input digital Control of the transmitting power TxD Pin 6 Input digital Transmission data Mode Pin 7 Input digital Test mode activation 5V DC IN Pin 8 Input Supply voltage LDI Pin 9 Output digital Status output of the PLL frequency syn...

Page 21: ...timize a radio path it is possible to improve it by selecting a high quality antenna Nevertheless the fact has to be taken into account that interfering frequencies might also be increased An exact examination and measurement of the radio path is necessary for each application Arrangement of the antenna With stationary units the antenna should be installed in such a way that an obstacle free radio...

Page 22: ...st optimal one Stationary obstacles e g walls or metallic objects limit the transmission range and movable or smaller objects also humans also influence the radio path Since the radio transmission in this frequency range is not only carried out directly but also via reflexions other paths are also possible multipath propagation ...

Page 23: ...Operating Instructions SRIF 2002 Page 23 of 33 Settings 4 4 1 Settings for the DIP switch 24 4 2 Settings for the operation in the MDA SDA 25 4 3 Settings for the operation in the hand held terminal 25 ...

Page 24: ... 400 X OFF ON OFF 57 600 X OFF ON ON 115 200 X ON X X X Switch position irrelevant The typical setting factory setting is the baud rate 57 600 Note This presetting can be overwritten with the help of the additional asynchronous serial interface UART protocol 4800 baud 8N1 The procedure is described in Chapter 3 3 page 17 ECOS products such as the MPS the hand held terminal or similar products use ...

Page 25: ... consumption of the SRIF 2002 module the increased power consumption is set for new MDAs in the operating mode Constant current control ON MDA 5 280 mA and MDA6 300 mA Please contact your contact partner for more information 4 3 Settings for the operation in the hand held terminal Depending on the version and the equipped firmware in the hand held terminal it is possible that not all of the radio ...

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Page 27: ...Operating Instructions SRIF 2002 Page 27 of 33 Maintenance and Care 5 The SRIF 2002 does not require any maintenance or care ...

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Page 29: ...idth normally 1100 kHz FSK frequency shift normally 120 kHz Input sensitivity 96 dBm Channel separation 1 173 23 kHz Operating voltage 4 5 V up to 5 5 V Current consumption in operation in stand by 145 mA up to 210 mA 17 mA up to 23 mA Voltage at Rx Tx SerIN TxD mode 0 3 V up to 6 5 V Voltage at A0 A6 PWR 0 3 V up to 4 5 V Operating temperature range 10 C up to 65 C Storage temperature range 40 C ...

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Page 31: ...Operating Instructions SRIF 2002 Page 31 of 33 Appendix Channel Frequency Table 7 The table shows the channel assignment and the commands for the serial programming ...

Page 32: ... 3070 207 66 5 844 5826 260 13 5 747 2047 125 3D 5 796 4803 217 67 5 845 7559 270 14 5 748 3779 135 3E 5 797 6535 227 68 5 846 9291 280 15 5 749 5511 145 3F 5 798 8267 237 69 5 848 1023 290 16 5 750 7244 155 40 5 800 0000 395 6A 5 849 2755 122 17 5 751 8976 165 41 5 801 1732 010 6B 5 850 4488 132 18 5 753 0708 175 42 5 802 3465 020 6C 5 851 6220 142 19 5 754 2441 185 43 5 803 5196 030 6D 5 852 795...

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