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SATELLINE-EASy / SATELLINE-EASy 869 

User Guide, Version 3.0 

 

67 

 

13.3.3

 

Repeater chain using dual addressing 

 

If the terminal devices cannot add address chains to the beginning of the data packets, a 
network with several repeaters may still be realised by using dual addressing. In dual addressing 
each link (see arrows below in figure) is given a unique address, which will prevent duplication 
of messages and endless loops in the network. The terminal devices need not add anything to 
the data. 
 
Usually the primary transmit address is used in transmission (TX1). The secondary transmit 
address (TX2) is used only if the R

epeater Mode

  is used and the packet to be repeated was 

received using the secondary reception address (RX2). 
 
In the following example two repeaters are used. It should be noted that each link (arrow) might 
be uniquely defined with the help of radio 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 network.  
Repeaters may also act as ordinary substations; in that case the terminal device must wait until 
the message has reached the end of the repeater chain before sending data. 

 
 
 
 
 
 
 
 
 
 

13.3.4

 

Redundant repeater chain 

 
Reliability of a radio data communication system can be improved significantly by designing 
redundant equipment setup for master and repeater stations. The two repeater chains are 
separated by proper dual addressing setup. Slave stations need to be able to communicate with 
the master through the both repeater chains. By using the "TX address auto switch" function, the 
slave station modem directs the reply message to the repeater chain from which the request has 
been received. 
 

If "TX address auto switch" has been set ON, radio modem checks out the RX address of the 
received message. When one of the RX addresses is recognised, all the messages coming in 
from the serial interface will be sent to the air with matching TX address. The use of "TX address 
auto switch" function is not recommended if Repeater Function is set ON. 

12

21

(12)

(21)

21

32

23

12

32

43

34

23

43

34

(43)

(34)

rxd

txd

rxd

txd

Modem 1

master

Modem 2

repeater

Modem 3

repeater

Modem 4

TX1

RX1

TX2

RX2

Addresses:

 

Содержание SATELLINE-EASy

Страница 1: ...SATELLINE EASy SATELLINE EASy 869 User Guide Version 3 0 1 SATELLINE EASy SATELLINE EASy 869 Radio Modem User Guide...

Страница 2: ...arantees on suitability and applicability to a certain application Under no circumstances is the manufacturer or the developer of a program responsible for any possible damages caused by the use of a...

Страница 3: ...country to another The user of a radio modem must take care that the device is not operated without the permission of the local authorities on frequencies other than those specifically reserved and i...

Страница 4: ...radio performance electromagnetic compatibility and electrical safety and other relevant provisions of Directive 1999 5 EC Therefore the equipment is labelled with the following CE marking The notifi...

Страница 5: ...SATELLINE EASy SATELLINE EASy 869 User Guide Version 3 0 5...

Страница 6: ...ltless and safe operation of the devices can be guaranteed only if the transport storage operation and handling of the devices is appropriate This also applies to the maintenance of the products To pr...

Страница 7: ...TECHNICAL SPECIFICATIONS 13 2 1 Important note for the users of SATELLINE EASy 869 14 3 INTERFACE CONNECTORS LEDS 15 3 1 Antenna connector 15 3 2 Power supply 15 3 3 Serial ports 16 3 4 LED indicators...

Страница 8: ...8 5 7 Separate RX TX frequencies 29 5 8 Free Channel Scan FCS 29 5 9 User data whitening 29 5 10 Pacific Crest and TRIMTALK compatibility 30 5 10 1 Settings in compatibility modes 31 5 10 2 Repeater f...

Страница 9: ...53 11 1 2 Channel list related SL commands 54 11 1 3 Serial port related SL commands 55 11 1 4 Memory related SL commands 55 11 1 5 Operation mode 55 11 1 6 Modem info related SL commands 56 11 1 7 R...

Страница 10: ...work ID 75 15 INSTALLATION 76 15 1 Installation of the radio modem 76 15 2 Wiring 77 15 2 1 RS 232 wiring Port1 without handshaking 77 15 2 2 RS 232 wiring Port1 and handshaking signals connected 78 1...

Страница 11: ...SK FST or TRIMTALK450s protocols Half duplex radio data transfer Over the air data rate o 9600 bps 12 5 kHz channel spacing o 9600 bps 20 kHz channel spacing o 19200 bps 25 kHz channel spacing Small c...

Страница 12: ...rical Interface Port 1 RS 232 Port 2 LVTTL TTL or RS 232 422 depends on the assembly Interface Connector D 15 female Data speed of Serial interface 300 38400 bps Data speed of Radio Interface 19200 bp...

Страница 13: ...EN 300 220 Carrier power stability 1 5 dB DATA MODEM Electrical Interface Port1 RS 232 Port2 LVTTL TTL or RS 232 422 depends on the assembly Interface Connector D 15 female Data speed of Serial interf...

Страница 14: ...TELLINE EASy Frequency band 869 4125 869 6375 MHz 403 473 MHz Channel spacing width 25 kHz fixed 25 20 12 5 kHz Transmitter output 10 20 50 100 200 500 mW 100 200 500 1000 mW Supported radio compatibi...

Страница 15: ...EASy is available in two operating voltage ranges depending on which type of internal power interface module has been installed at the factory The voltage range is marked on the label 6 30 VDC deliver...

Страница 16: ...see paragraph RS 485 interface 3 4 LED indicators There are five 5 LED indicators on the front panel of the radio modem that indicate the status of the serial port and the radio interface LED Indicati...

Страница 17: ...mit Data if Port2 Interface level is RS 232 TTL Port2 Transmit Data if Port2 Interface level is TTL LVTTL Port2 Transmit Data if Port2 Interface level is LVTTL A IN RS 422 Port2 Transmit Data positive...

Страница 18: ...settings SATELLINE EASy Available serial port interfaces Serial Port Physical interface Power Interface module identifier Port 1 RS 232 Port 1 is always RS 232 Port 2 RS 422 RS 232 RS 485 Note Module...

Страница 19: ...15 m For longer distances RS 422 or RS 485 is better suited in order to maintain the integrity of data 4 2 RS 422 interface Port 2 RS 422 standard defines a serial data transfer method which is very s...

Страница 20: ...ust be terminated properly to prevent or at least minimise harmful reflections formed between the transmitting and receiving end of the transmission line A common method of terminating a RS 485 type o...

Страница 21: ...t 8 bit odd parity 2 stop bits 011000010011 12 bit The overall length of characters 10 11 or 12 bits should be taken into account when calculating the data throughput capability of a system A useful r...

Страница 22: ...the DTE It indicates when there is activity on the radio channel The options for CD line are RSSI threshold CD is active whenever a signal exceeding the level required for reception exists on the radi...

Страница 23: ...used as criteria for End of radio transmission When the transmit buffer is empty and a pause is detected the modem stops the transmission and will then change the radio to the receive mode SL command...

Страница 24: ...ffers data into its memory Transmission ends when a pause is detected in the data sent by the terminal device and after all buffered data has been transmitted When the serial interface speed is the sa...

Страница 25: ...5 kHz channel spacing The user can select one of the ten possible frequencies 869 4125 MHz 869 4375 MHz 869 4625 MHz 869 4875 MHz 869 5125 MHz 869 5375 MHz 869 5625 MHz 869 5875 MHz 869 6125 MHz 869 6...

Страница 26: ...nd EASy 869 Output power mW Output power dBm EASy EASy 869 10 mW 10 dBm 20 mW 13 dBm 50 mW 17 dBm 100 mW 20 dBm 200 mW 23 dBm 500 mW 27 dBm 1000 mW 30 dBm The antenna or a 50 Ohm attenuator should be...

Страница 27: ...ering signal s and or possible noise Maximum sensitivity should be achieved and the desired signal is very weak In this case the sensitivity could increase by decreasing Signal threshold This type of...

Страница 28: ...ferent options for error checking that can be accessed in the Additional setup menu in the Programming Mode Error check checks data only partially while data is received Full CRC16 check adds two chec...

Страница 29: ...nsmissions and finds the best transmission channel The receivers scan and follow the frequency of that particular transmitter consequently A more detailed description of FCS function and FCS terminal...

Страница 30: ...mpatibility options SATELLINE 3AS Original SATELLINE 3AS data transfer mode Default PacCrest 4FSK Transparent mode FEC ON Scrambling ON Option 1 PacCrest GMSK Transparent mode FEC ON Scrambling ON Opt...

Страница 31: ...ng key settings FEC OFF because the FEC here means SATEL 3AS FEC not Pacific Crest TRIMTALK FEC Error check OFF Full CRC16 check OFF Radio Compatibility Option 1 in case of Pacific Crest 4 FSK Radio C...

Страница 32: ...5 by default Primary TX address TX1 OFF by default Serial Interface Protocol Mode Radio compatibility Serial Interface BREAK to Command not implemented Serial Interface Modem Enable Yes not applicable...

Страница 33: ...ary TX address is handled in the same way as Remote address in Pacific Crest PDL modems The default value is 0x00FF 255 in decimal format i e the broadcast address If the modem has RX address ON then...

Страница 34: ...ty mode Symbol rate on 12 5 kHz channel Symbol rate on 25 kHz channel PacCrest 4FSK 9600 bps 19200 bps PacCrest GMSK 4800 bps 9600 bps Trimtalk450s 4800 bps 9600 bps PacCrest FST 9600 bps 19200 bps Th...

Страница 35: ...bytes 100 bytes 500 bytes 9600 153 ms 177 ms 421 ms 1505 ms 19200 151 ms 172 ms 368 ms 1244 ms 38400 151 ms 168 ms 341 ms 1113 ms Trimtalk450s modes on 25 kHz channel Transfer delays Bps 1 byte 10 by...

Страница 36: ...cond intervals The short block test is suitable for running radio link tests Reception of data can be monitored using a suitable terminal program Example of short data blocks 00 This is a testline of...

Страница 37: ...ftware SL commands A terminal device can command or configure the radio modem by using special commands SL commands are applied especially in cases where radio modems are to be integrated seamlessly i...

Страница 38: ...alue Channel list OFF FCS Free Channel Scan FCS parameters and settings are described in separate technical documentation available from the dealers or SATEL FCS is not to be mixed with the Channel li...

Страница 39: ...rial port 2 Status Defines whether Port 2 is ON OFF If the interface to be used is anything else but RS 232 Port 2 must be set ON Default value OFF Serial port 2 Interface Available selections depend...

Страница 40: ...with each other must have the same setting for FEC ON or OFF Note that FEC setting applies only to the SATELLINE 3AS radio protocol the other radio compatibility modes have their own FEC bindings alt...

Страница 41: ...f the link rate of the radio is at least 19200 bps In case Region code is set to US and the active setup violates the above mentioned FCC requirement the radio modem cuts the transmitter power level t...

Страница 42: ...ration Manager CM is the PC software for the configuration of SATELLINE EASy and SATELLINE EASy 869 Minimum requirements PC Windows 95 98 2000 XP Vista and Win7 equipped with a COM port minimum baud r...

Страница 43: ...witch in NARS 1F adapter downwards SATELLINE FW 06 16 3 xx xx HW SPL0005x PV 00 xx IM 01 S N YYMMxxxx Current settings 1 Radio frequency TX 438 0000 MHz RX 438 0000 MHz Ref freq 438 0000 MHz Spacing 2...

Страница 44: ...the menus Pressing ESC cancels the value or escapes back to a higher level in the menu Save the changes by pressing E on the main menu If you don t want to save the changes press Q Disconnect MODE pin...

Страница 45: ...y pressing E for Exit Save on the main menu 9 2 3 Radio modem info The header section of the main menu includes info on the build up Firmware version FW Hardware version HW PV Product variant version...

Страница 46: ...power up in its top level view The indicator on the upper left corner has two functions Antenna symbol followed by Received Signal Strength RSSI in dBm units RSSI will be shown for about 7 seconds af...

Страница 47: ...en the pages using UP or DOWN buttons or escape back to the top level by pressing EXIT button The second info page Transmitter frequency Receiver frequency Reference frequency The third info page Lowe...

Страница 48: ...on either confirms a selection sets or changes a value moves to the next digit or enters a sub menu depending on the context Pressing EXIT CANCEL BACK NO button escapes back to the previous higher lev...

Страница 49: ...to be changed RX freq in case only RX frequency is to be changed The limits of the Frequency Band 1 will be shown for informative purposes Likewise the limits of Frequency Band 2 will be shown by pres...

Страница 50: ...ings menu first by pressing SETUP button on the top level view Press or until the cursor points to Additional and press SELECT to move to the submenu Press or until the cursor points to Repeater Press...

Страница 51: ...to return all the settings to the original condition as they were set at the factory Enter the settings menu first by pressing SETUP button on the top level view Press or until the cursor points to F...

Страница 52: ...D SL command is properly recognised also in the case when the command string is terminated in CR ASCII character no 13 Carriage Return 0x0d or CR LF LF ASCII char no 10 Line Feed 0x0a If multiple SL c...

Страница 53: ...zzzz and primary receive address RX1 to value xxxx SL Q Get TX address mode Response 0 TX address OFF or 1 TX address ON SL Q x Set TX address ON OFF Values of x are 0 TX address OFF 1 TX address ON...

Страница 54: ...ponse Channel number Frequency Channel width Tx Power For example CH 1 430 150000 MHz 25 0 kHz 0 mW 0D SL L info Set channel info Format is SL L Iaa Nbbbbbb Fcccccccccc Wdddddd Peeeee CR where capital...

Страница 55: ...2 number of stop bits 11 1 4 Memory related SL commands Command Effect and description of command SL Save current settings as permanent settings SL R Restore settings to their factory set values SLS0...

Страница 56: ...trary data max 25 characters in memory location 3 SL 4 Get arbitrary data stored in memory location 4 SL 4 data Set arbitrary data max 25 characters in memory location 4 SL C Get product number or oth...

Страница 57: ...nnn MHz SL C nnn nnnnn Set reference frequency SL D Get operational mode of radio Response S Single Channel default D Dual Channel R Reverse Dual Channel SL D x Set operational mode of radio Values of...

Страница 58: ...1 ON b CallSignInterval 0 255 in minutes c CallSignId max 16 alphanumeric characters Example 1 5 MYMESSAGE followed by CarriageReturn character SL C a b c Set Call sign settings a CallSignState 0 OFF...

Страница 59: ...rrent signal threshold dBm Response nnn dBm for example 80 dBm or 112 dBm SL T nnn Set minimum power level of signal to be received Signal Threshold level Value of nnn is decimal value 80 118 in dBm 1...

Страница 60: ...snapshot below for creating and saving a channel list in the radio modem or in a file for later usage SL commands provide an interface for a host device to command the radio modem directly An example...

Страница 61: ...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 to the serial interfa...

Страница 62: ...address is only used in repeater applications Radio modems configured to function as repeaters will repeat data messages using either the primary or secondary address depending upon which address was...

Страница 63: ...essing 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 the ac...

Страница 64: ...nd 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 area is minimal E...

Страница 65: ...ly one 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 alo...

Страница 66: ...tations 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...

Страница 67: ...emaining in endless loops in the network Repeaters may also act as ordinary substations in that case the terminal device must wait until the message has reached the end of the repeater chain before se...

Страница 68: ...ncludes 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 re...

Страница 69: ...ing It is assumed that the position of the address field in the user messages is fixed However some special protocols are supported o IEC 60870 5 101 is a protocol commonly used in control application...

Страница 70: ...s a PC based program that allows the user to design their required network simply and quickly using a graphical interface to literally draw the network plan on the screen Firstly a picture of the netw...

Страница 71: ...interface On the basis of this user address all necessary information needed to relay the message to destination is fetched from an internal routing table inside a radio modem The user protocol is no...

Страница 72: ...hanging routes Only master station needs to be reconfigured All radio modems need to be reconfigured Maximum length of route 13 hops No limit Overhop function Yes No Network ID Yes Yes Storing of rout...

Страница 73: ...port From the routing table a route 1 2 can be found to which the radio modem also adds its own address to define the route for return data Radio modem 1 repeats the packet and radio modem 2 removes t...

Страница 74: ...ess field the packet is stored in a buffer If the relayed message from the repeater and the modem having sent the message originally is not received due for example because of radio modem failure or i...

Страница 75: ...ID is a string of up to eight characters which is used to prevent the reception of the messages coming from an external system The radio modems operating in the same system using Message Routing must...

Страница 76: ...de of the 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 dir...

Страница 77: ...Port1 without handshaking The simplest connection to PC serial port RS 232 is depicted in the schematic below FUSE 1 A slow 6 30 V assembly or 2 5 A slow 3 9 V assembly NOTE When installing the cables...

Страница 78: ...andshaking signals is depicted in the schematic below FUSE 1 A slow 6 30 V assembly or 2 5 A slow 3 9 V assembly 15 2 3 RS 422 wiring FUSE 1 A slow 6 30 V assembly or 2 5 A slow 3 9 V assembly If the...

Страница 79: ...ine only the electrical parameters of the signals signal level etc The connectors and the names of the signals are NOT defined Different RS 485 422 standards or proprietary buses specify different nam...

Страница 80: ...3 0 80 15 2 5 Programming mode adapter The wiring below is for configuring the radio modem via the Programming mode menu FUSE 1 A slow 6 30 V assembly or 2 5 A slow 3 9 V assembly SWITCH Programming m...

Страница 81: ...nna or corner antenna The antenna should be installed in a vertical position The exact location of the antenna depends on several factors such as the size of the overall system and the coverage area t...

Страница 82: ...a system it is advisable to prepare to test the system and also to consider serviceability of the system In particular cabling should be planned to allow easy access and to allow for maintenance It i...

Страница 83: ...attenuation more distinction is obtained to vertical polarised systems The influence of the directional patterns of the antennas must however be taken into consideration If a distinction to another i...

Страница 84: ...tallation Long connection distances can be realised by using amplifying antennas G Gain and by installing the antenna high Low loss Cable G 6 dBi 30 m Master Station Data Terminal 5 m G 6 dBi RSInterf...

Страница 85: ...an be achieved with the use of amplifying antennas Frequent topographical variations over long distances may require that at least one of the antennas be raised to a height of 10 to 20 m If the antenn...

Страница 86: ...space has different environmental and external factors to another and that the effects on transmission quality must be taken into account when planning the system Ground ground contours and buildings...

Страница 87: ...far as 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 exp...

Страница 88: ...3 0 88 18ACCESSORIES SATEL provides a wide selection of accessories and solutions for SATELLINE radio modems Antennas Serial data Power cables and adapters RF cables Filters and lightning protectors...

Страница 89: ...18 12 DC2 61 3D 104 68 h 147 93 190 BE 233 E9 19 13 DC3 62 3E 105 69 i 148 94 191 BF 234 EA 20 14 DC4 63 3F 106 6A j 149 95 192 C0 235 EB 21 15 NAK 64 40 107 6B k 150 96 193 C1 236 EC 22 16 SYN 65 41...

Страница 90: ...tted data wait time if RX frequency differs from TX frequency settling time after frequency change 20ms app 40 ms recommended for compatibility to prior SATELLINE 3AS radio modems SL Ping response tim...

Страница 91: ...48 ms 50 ms 4800 45 ms 45 ms 44 ms 44 ms 9600 44 ms 44 ms 68 ms 121 ms 19200 44 ms 44 ms 104 ms 360 ms 38400 48 ms 48 ms 132 ms 496 ms SATELLINE 3AS mode FEC OFF on 25 kHz channel Transfer delays Bps...

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