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SATELLINE-3AS

User Guide, Version 2.3

7.1.1 Features of Message Routing

The

Message Routing

feature of the SATELLINE-3AS and Epic is designed to be a fast and

transparent to fit real time systems. The features include:

Transparent to user protocols,.

Easy construction of a network containing several repeaters.

Any radio modem may operate as a repeater, i.e. dedicated repeaters are not usually

needed thus cutting down on costs.

Large areas of coverage may be implemented by using only one radio channel.

The use of mobile substations is also possible to some extent.

The system will be fully deterministic i.e. the transmission delays are predictable. Because of

that, the principle of

Message Routing

is connectionless.

Added redundancy, as a failing radio modem can be, in certain cases, bypassed with

another radio modem positioned in the same coverage area.

Message Routing

is intended mainly for the protocols based on polling scheme and a single

master station.

7.1.2 Limitations of Message Routing

It is assumed that the position of the address field in the user messages is fixed (some special

protocols can be supported though).

It is assumed that there is only one message at a time inside the network, simultaneous

messages could cause collisions.

The max number of the routes depends on the actual hardware and the software version.

7.1.3 Getting started with Message Routing

The design of any radio modem system requires very precise planning. Once the choices
between devices, their location, installation, maintenance etc. are clear, the

Message Routing

for the system can be implemented.

Planning your Message Routing System
1. Decide which mode of the

Message Routing

suits the system -

Source Mode

Virtual Mode

See the following paragraphs for details.

2. Design a layout of the system describing the settings such as protocol, addresses of the
terminal equipment, radio frequencies and so on.

3. Configure the radio modems accordingly. There are two ways to configure the parameters
related to the

Message Routing

SaTerm 3

PC-program

Manual configuration in the setup menu.

In either case, please check the chapter on

Settings

before changing the setup of the radio

modems

Finally, when all the radio modems have correct settings, they are ready for further installation.

Содержание SATEL-3AS-125

Страница 1: ...rmation at their disposal is valid SATEL software and programs are delivered as is The manufacturer does not grant any kind of warranty including guarantees on suitability and applicability to a certa...

Страница 2: ...SATELLINE 3AS d 869 MHz is designed to operate on the licence free frequency band of 869 400 869 650 MHz according to recommendation CEPT ERC REC 70 03 This recommendation has been drawn up by the Eu...

Страница 3: ...responsible if any products manufactured by it are used in unlawful ways The devices mentioned in this manual are to be used only according to the instructions described in this manual Faultless and s...

Страница 4: ...70 MHz 11 1 2 SATELLINE 3AS d Technical specifications 869 MHz 12 1 3 SATELLINE 3AS d Epic Technical specifications 400 470 MHz 13 1 4 Basic configuration and installation 14 2 SERIAL INTERFACE 16 2 1...

Страница 5: ...3 1 Data buffering in the radio data modem 33 5 3 2 Optional start delay in transmit mode 34 5 4 Tests 34 6 REPEATER MODE AND ADDRESSING 36 6 1 Repeater 36 6 2 Addressing 37 6 2 1 Connection between...

Страница 6: ...g settings primary and secondary RX and TX addresses 59 9 1 4 Changing serial port settings Port 1 and Port 2 61 9 1 5 Modification of handshaking functions 64 9 1 6 Special functions 65 9 1 7 Modific...

Страница 7: ...t 90 10 3 2 Mobile equipment 90 10 3 3 Base stations 90 10 3 4 General antenna installation instructions 91 11 DESIGNING SYSTEMS 94 11 1 Factors affecting the quality and distance of the radio connect...

Страница 8: ...Version 2 3 8 15 APPENDIX B 100 15 1 Functional delays 100 15 2 Transmission related delays 100 15 2 1 Transmission delays when using a 12 5 kHz radio channel 101 15 2 2 Transmission delays using a 2...

Страница 9: ...S also offers many other new features These include built in support for RS 422 and RS 485 interfaces as well as the standard RS 232 interface The SATELLINE 3ASd and SATELLINE 3ASd Epic models include...

Страница 10: ...tworks SATELLINE 3AS radio modem software is easily updated directly through the serial interface of a PC SATELLINE 3AS radio modem software contains an optional error correction routine FEC which can...

Страница 11: ...1 ETS 300 113 RADIO RECEIVER Sensitivity Common Channel Rejection Adjacent Channel Selectivity Intermodulation Attenuation Spurious Radiation s 116 110 dBm BER 10 E 3 Note 2 12 dB 60 dB 12 5 kHz 70 d...

Страница 12: ...ng to EN 300 220 1 RADIO RECEIVER Sensitivity Common Channel Rejection Adjacent Channel Selectivity Intermodulation Attenuation Spurious Radiation s 110 108 dBm BER 10 E 3 12 dB 60 dB 60 dB 2 nW MODEM...

Страница 13: ...R Sensitivity Common Channel Rejection Adjacent Channel Selectivity Intermodulation Attenuation Spurious Radiation s Diversity 116 110 dBm BER 10 E 3 12 dB 60 dB 12 5 kHz 70 dB 25 kHz 65 dB 2 nW Posit...

Страница 14: ...d GND must be connected to a power supply with a proper output voltage and with a minimum output current of 1 A with the SATELLINE 3AS Epic the required output current of the power supply is 5A The DT...

Страница 15: ...or 15 and the power supply ground to either pin 7 or 8 Fuse size is 630 mA slow When using the SATELLINE 3AS Epic model the operating voltage must be connected to pins 14 AND 15 and the power supply g...

Страница 16: ...dio modem contains two separate serial ports which are designated P Port 1 and P Port 2 Only one port at a time can be used for communication Port 1 complies always with the RS 232 standard Port 2 can...

Страница 17: ...1 13 IN RTS PORT2 RS 232 model 2 OUT CD 3 OUT RD2 Receive data Port2 4 IN TD2 Transmit data Port2 5 OUT RSSI PORT2 RS 422 485 model 2 OUT A Receive data positive 3 OUT B Receive data negative 4 IN A T...

Страница 18: ...ed the radio modem will enter the Data Transfer Mode in which data can be transmitted and received The Programming Mode is used only when installing a radio modem and changing the operational paramete...

Страница 19: ...nes will cancel out The effect of different signals moving in the same cable will also be smaller than in the case of the RS 232 Transmission distance can be considerably longer than when using RS 232...

Страница 20: ...harmful reflections formed between the transmitting and receiving end of the transmission line A common method of terminating an RS 485 type of transmission line is to connect a so called termination...

Страница 21: ...5 kHz enables correspondingly a data speed of 9600 bps The data speed of the radio interface is always fixed 19200 bps or 9600 bps irrespective of the data speed of the serial interface If the data s...

Страница 22: ...ntains two separate receivers and a selection is made between the received signals in order that the stronger better signal is used By using this method the signal fading caused by multipath propagati...

Страница 23: ...3 Priority RX TX SATELLINE 3AS offers a Priority setting which selects the priority between reception and transmission The setting can be changed in Programming Mode By default transmission has higher...

Страница 24: ...er via the radio interface especially in unfavourable conditions FEC function should be used when link distances are long and or if there are many disturbances in the radio channels used The use of th...

Страница 25: ...MHz fc Max 2 MHz 3 7 Dual Channel function By setting the Dual Channel function on the SATELLINE 3AS radio modem can transmit and receive data on separate channels The radio modem is initially at the...

Страница 26: ...With the help of SL commands the modem can be set to Single Dual or Reverse Dual Channel mode Single Channel normal one channel mode Application example diagram above where all the radio modems in th...

Страница 27: ...the radio interface The status of the CD signal on the serial interface may differ from the status of the LED indicator 4 2 Programming Mode The settings of SATELLINE 3AS are fully configurable in Pro...

Страница 28: ...gs Save changes by pressing E in the main menu If you don t want to save changes press Q Disconnect PROG pin from ground if using the ARS 1F adapter slide the switch upwards the radio modem should now...

Страница 29: ...the LCD display it is possible to change most of the settings of the radio modem without the need for an external terminal The display backlight illuminates automatically as soon as a button is presse...

Страница 30: ...1 Setup Display of the software version SATELLINE 3AS Version X YZ Display in Programming Mode RF frequency Addressing Port 1 CANCEL Setup Select button Cancel Back button Up button Down button Curren...

Страница 31: ...a character length and taking for example a decimal value of 204 which corresponds to a binary value of 11001100 and with a start bit value of 0 parity bit set to either NO NONE 0 or 1 and with a stop...

Страница 32: ...ansmit at the same time 5 2 1 CTS line The options for CTS line are 1 C Clear To Send Operation is similar to SATELLINE 2ASxE CTS is active when the radio modem is ready to accept data for transmissio...

Страница 33: ...reception as normal Non active RTS line will interrupt reception process immediately even if the radio modem is receiving a data packet This option is used to force the radio modem into WAIT State fo...

Страница 34: ...ured to delay the beginning of a radio transmission by 1 65000 ms This function can be used to prevent packet contention in a system where all substations would otherwise answer a poll of a base stati...

Страница 35: ...ssion is started again Example of a long data blocks This is a long testline of SATELLINE 3AS radio modem This is a long testline of SATELLINE 3AS radio modem This is a long testline of SATELLINE 3AS...

Страница 36: ...e antenna are needed Other devices are not necessary A radio modem acting as a repeater can also be used to receive and transmit data In repeater mode the radio modem will transmit the received data t...

Страница 37: ...odems configured to function as repeaters will repeat data messages using either the primary or secondary address depending upon which address was used during the reception of the data message If only...

Страница 38: ...n addressing has been set ON and either the primary or secondary RX address of the radio modem is identical to the address of the received data packet The radio modem will remove the address and send...

Страница 39: ...the reception and transmission addresses are identical in both radio modems This is the easiest way to control addresses and the risk caused by interference from other systems operating in the same a...

Страница 40: ...e repeater without addressing In such a case the base station will however hear the message both from the substation and from the repeater in other words the message is duplicated as it moves along th...

Страница 41: ...cannot form address fields but are able to recognise messages addressed to them alternating address pairs may be used Transmit address TX and receive address RX alternate in the order shown in the tab...

Страница 42: ...adio modem numbers and data transfer directions The Repeater Mode should be switched ON only in the radio modems acting as repeaters to prevent the packets from remaining in endless loops in the netwo...

Страница 43: ...hen the secondary primary RX address is recognised all the messages coming in from the serial interface will be sent to the air with secondary primary TX address until a message with primary secondary...

Страница 44: ...includes o the network id see later o the route information o the original user message encapsulated o redundant information such as checksums for error checking etc The radio modems along the route r...

Страница 45: ...the address field in the user messages is fixed some special protocols can be supported though It is assumed that there is only one message at a time inside the network simultaneous messages could cau...

Страница 46: ...port switching them to the programming mode and clicking the transmit button of Saterm 3 Please check the user manual of Saterm 3 for more details The figure below shows a typical snapshot taken from...

Страница 47: ...The beginning of the packet is located by a preceding pause in the byte stream Message Routing can therefore be applied to most protocols with fixed address field position The position and length of t...

Страница 48: ...igured Changing routes Only master station needs to be reconfigured All radio modems need to be reconfigured Maximum length of route 16 jumps No limit Overhop function Yes No Network ID Yes Yes Storin...

Страница 49: ...he network has been programmed into this base station When the terminal device X transmits a packet to e g terminal Y radio modem 0 will detect the address Y from the data received through the serial...

Страница 50: ...epends Terminal device X transmits a packet to terminal device Y The routing table of radio modem contains the required route and the packet is transmitted with link ID 2 attached to it Of the radio m...

Страница 51: ...middle of the chain fail In addition to this the likelihood of a transmission error decreases if it is possible to listen to more than one transmission since in this case it is more likely that at le...

Страница 52: ...and the transmission by repeater R2 is prevented When the mobile station is transmitting it is enough that at least one radio modem defined to be a part of the route receives the transmission 7 3 4 S...

Страница 53: ...from buildings and terrain contours e g hills These useful reflections do however cause fading which can occur when the radio signal experiences a number of reflections on the way to the receiving ant...

Страница 54: ...ears at half wave intervals and so the best results are achieved by installing the two antennas of SATELLINE 3AS Epic so that the minimum separation distance is x wavelength used min 0 75 m It is not...

Страница 55: ...which is in terminal emulation state This can be accomplished by using a suitable program such as the SaTerm 3 program or the Windows Hyper Terminal program Check the wiring of the serial port connect...

Страница 56: ...active radio channel frequency is 1 MHz counting from the factory set centre frequency Because of possible deviations in each country and or region concerning the authorised use of the frequency spec...

Страница 57: ...mW 2 Signal threshold 110 dBm 3 TX start delay 0 ms Enter selection or ESC to previous menu 1 TX power setup 1 10 mW 2 20 mW 3 50 mW 4 100 mW 5 200 mW 6 500 mW 7 1000 mW Enter selection or ESC to prev...

Страница 58: ...which is approximately 10 20 dBm above the maximum sensitivity level This will prevent unnecessary receive attempts caused by noise NOTE The setting of the transmitter output power of the radio modem...

Страница 59: ...l other primary and secondary transmitter and receiver addresses is done in similar way Enter selection 3 Addressing setup Toggle ON OFF values Current value shown 1 RX address OFF 2 TX address OFF 3...

Страница 60: ...value is displayed in the LCD display RX address setup RX Address ON 0020 0000 Enter new address HEX or ESC to previous menu ESC The address is given in hexadecimal format with four digits and the nu...

Страница 61: ...er of stop bits is changed 1 2 Enter selection 4 Serial port 1 Settings 1 Port status ON 2 Data speed 19200 bit s 3 Data bits 8 bit data 4 Parity bits None parity 5 Stop bits 1 stop bit Enter selectio...

Страница 62: ...on or ESC to previous menu 1 Serial port 1 Settings 1 Port status OFF 2 Data speed 9600 bit s 3 Data bits 7 bit data 4 Parity bits None parity 5 Stop bits 1 stop bit Enter selection or ESC to previous...

Страница 63: ...vious menu ESC The settings of the serial port must be modified to correspond with the settings of the terminal device that is to be connected to the radio modem Modification of the settings of serial...

Страница 64: ...rty RSSI threshold 3 RTS line property Ignored Enter selection or ESC to previous menu 1 Select CTS line action property 1 Clear to send 2 TX buffer state Enter selection or ESC to previous menu 2 Ser...

Страница 65: ...pecial functions Special functions are modified by selecting from the main menu selection 7 For further information see the relevant Chapters describing the said functions The current values of the pa...

Страница 66: ...ute add 7 Route delete 8 Delete all routes Enter selection or ESC to previous menu 1 Routing mode setup 1 Disabled 2 Source routing 3 Virtual routing Enter selection or ESC to previous menu 3 Routing...

Страница 67: ...dress position setup 1 Start position 02 2 Length 01 Enter selection or ESC to previous menu 2 User defined address length setup Current value 01 Enter new length 1 4 3 User defined address length set...

Страница 68: ...setup Current routing address 0009 Enter new address HEX or ESC to previous menu 0002 Address setup Current routing address 0002 Enter new address HEX or ESC to previous menu ESC Routing Setup 1 Mode...

Страница 69: ...the addition of a route Route add Enter destination address HEX Selection 7 enables the removal of a route Route delete Enter destination address HEX Selection 8 enables erasure of ALL routing inform...

Страница 70: ...you want to restore factory settings Y N Restoring is confirmed by pressing Y Y YES or cancelled by pressing N N NO Also the pressing of ESC button at any point in the procedure will return the displ...

Страница 71: ...sor blinking under it has reached the desired value In the case of numerical values the NEXT button is used to move on to the next digit in the numerical value and then the above described process is...

Страница 72: ...frequency this first digit cannot be edited To move onto the next digit press NEXT CF 468 5000 MHz 468 2000 MHz CANCEL Next Press or until the said digit has reached the desired value Press NEXT to m...

Страница 73: ...channel 468 5000 MHz BACK Change If was pressed the display will now show the lower and higher limits of frequency B Band 1 these values cannot be changed To change the active channel frequency value...

Страница 74: ...or indicates the previously set value 10mW 20mW 50mW 100mW 200mW 500mW 1000mW CANCEL SET MODIFYING RECEIVER SENSITIVITY The displayed list consists off all possible values of receiver sensitivity Pres...

Страница 75: ...OFF BACK Change Press or until the first digit of the address has reached the desired value and move on to the next digit by pressing NEXT RX address 0000 0000 OFF CANCEL Next Repeat the above descri...

Страница 76: ...nsfer speed value X bit s Confirm the selection by pressing SET The display will return to the previous higher level submenu NOTE The starting position of the cursor indicates the previously set value...

Страница 77: ...re are three 3 submenus relating to handshaking parameters Press and until the cursor points to the desired submenu selection and press CHANGE CTS Clr to send CD RSSI RTS Ignored BACK Change DEFINING...

Страница 78: ...ACK The display will return to the previous higher level submenu Error corr OFF Error check OFF Repeater OFF SL commands OFF Priority TX BACK Change 9 2 7 Activating tests Press or until cursor points...

Страница 79: ...of the LCD display Press or to move the cursor to point to Contrast selection and press SELECT to move on to the submenu RF frequency Radio settings Addressing Port 1 Port 2 Additional Test Factory se...

Страница 80: ...e terminal program SL commands must be enabled using Programming Mode before they can be used An SL command is a one continuous string of characters which is separated from other data by pauses that a...

Страница 81: ...D x Sets the operational mode of the radio The different values of x are S Single Channel D Dual Channel R Reverse Dual Channel Note Use this command only if the setup of the frequency bands matches...

Страница 82: ...med power levels the output power is set to the nearest possible value SL P Requests the RF output power Response xxxxx mW where xxxxx is a decimal value the output power of the transmitter SL T xxx S...

Страница 83: ...all addresses RX1 RX2 TX1 TX2 to value xx where xx 00h FFh SLTxx Set both transmit addresses TX1 TX2 to value xx where xx 00h FFh SLRxx Set both receive addresses RX1 RX2 to value xx where xx 00h FFh...

Страница 84: ...he radio modem The installation plate can be mounted using the holes provided on the plate 2 Installation using the Velcro tape provided with the radio modem 3 Installation can also be made directly t...

Страница 85: ...the operating voltage of all devices must be off POWER OFF condition Due to the greater current consumption of SATELLINE 3AS Epic operating voltage must be connected to pins 14 AND 15 and ground to pi...

Страница 86: ...C COM port 9 PIN D CONN 25 PIN D CONN RADIO MODEM 14 15 7 8 Vb GND 3 2 TD 11 Vb GND 2 3 RD 9 7 4 RTS 13 8 5 CTS 6 6 6 DSR 10 5 7 SGND 7 1 8 CD 2 4 20 DTR 1 TD RD RTS CTS DSR SGND CD DTR TD RD RTS CTS...

Страница 87: ...of the lines must be terminated using a separate termination resistor typical values range from 100 120 W depending on the characteristic impedance of the transmission line A 2 RADIO MODEM 1 14 15 7 8...

Страница 88: ...nated by connecting a separate terminating resistor between the positive and negative signal wire Typical values range from 100 120 W depending on the characteristic impedance of the line A 2 RADIO MO...

Страница 89: ...4 of the D connector are connected to the positive power supply line The pins 8 and 7 of the D connector are connected to negative power supply line ground The DTR line of the radio modem which is con...

Страница 90: ...na as possible In cases which the antenna cannot be directly connected to the TNC connector of the radio modem a coaxial cable with 50 W impedance must be used between the antenna and the TNC connecto...

Страница 91: ...dems the best location for an antenna is the highest point of a building and possibly an additional antenna mast If a separate antenna mast is used the antenna can if necessary be installed sideways a...

Страница 92: ...l as the other substation antennas in the same building The best way to distinguish from the other antennas situated in the neighbourhood is to mount the antennas as far a part as possible from each o...

Страница 93: ...g antennas G Gain and by installing the antenna high long connection distances can be realised using the SATELLINE 3AS radio modem Low loss Cable G 6 dBi 30 m Master Station Data Terminal 5 m G 6 dBi...

Страница 94: ...y require that at least one of the antennas be raised to a height of 10 to 20 m If the antenna cable is more than 10 meters long it is necessary to use a low loss cable 0 7 dB 10 m in order not to was...

Страница 95: ...mally less 11 3 Remarks concerning the 869 MHz frequency band According to a recommendation of ETSI the frequencies range 869 4 869 65 MHz is reserved for use of license free radio appliances The appl...

Страница 96: ...s possible from any possible sources of interference The radio modem should not be installed onto a strongly vibrating surface The radio modem should be installed in such a way as to minimise exposure...

Страница 97: ...15 m D9 f 2 m including power supply cables Note In the description m male f female connector type 13 2 RS 485 422 cables and adapters Type Description Length Note ARS 2 Interface cable adapter D15 m...

Страница 98: ...interference it is highly recommendable to insert suitable filters between each radio modem and its antenna If a station is installed to a location exposed to lightning it is recommended to insert a...

Страница 99: ...4 68 h 147 93 190 BE 233 E9 19 13 62 3E 105 69 i 148 94 191 BF 234 EA 20 14 63 3F 106 6A j 149 95 192 C0 235 EB 21 15 64 40 107 6B k 150 96 193 C1 236 EC 22 16 65 41 A 108 6C l 151 97 194 C2 237 ED 23...

Страница 100: ...d by DTR line 500 Serial interface turnaround time of RS 232 0 Serial interface turnaround time of RS 485 1 Intercharacter delay max 2 3 characters 15 2 Transmission related delays Delay from the end...

Страница 101: ...n Forward Error Correction Number of bytes sent Bps 1 10 100 500 1200 40 40 41 46 4800 32 32 33 34 9600 31 31 31 31 19200 30 34 65 195 38400 30 35 88 322 Delays are in milliseconds and with a 10 margi...

Страница 102: ...r of bytes sent Bps 1 10 100 500 1200 50 51 53 58 4800 44 45 45 46 9600 43 45 67 126 19200 43 43 105 364 38400 42 43 128 490 Delays are in milliseconds and with a 10 margin 12 5 kHz radio channel with...

Страница 103: ...n Forward Error Correction Number of bytes sent Bps 1 10 100 500 1200 30 30 31 37 4800 22 22 23 23 9600 20 20 20 21 19200 20 20 20 20 38400 20 21 39 102 Delays are in milliseconds and with a 10 margin...

Страница 104: ...on Number of bytes sent Bps 1 10 100 500 1200 35 35 36 41 4800 28 29 30 32 9600 28 27 28 28 19200 27 27 36 65 38400 26 27 57 186 Delays are in milliseconds and with a 10 margin 25 kHz radio channel wi...

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