SST-2450 Wireless Modem User`s Manual
Contents
1. SST 2450 Wireless Modem User s Manual Warranty All products manufactured by ICP DAS are warranted against defective materials for a period of one year from the date of delivery to the original purchaser Warning ICP DAS assumes no liability for damages consequent to the use of this product ICP DAS reserves the right to change this manual at any time without notice The information furnished by ICP DAS is believed to be accurate and reliable However no responsibility is assumed by ICP DAS for its use or for any infringements of patents or other rights of third parties resulting from its use Copyright Copyright 2002 by ICP DAS All rights are reserved Trademark The names used for identification only may be registered trademarks of their respective companies SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 1 Table of Contents ee lS 10 HATO QUCHION 2 aan 3 SD ECHICAHONS ceren aa a E E ihesacaacsazesananezaae yakasi eteaas EEA 4 FroaUcCtCDESCHPUON nu sicca sinclar vise Seasaue niece eae SY PE 5 3 1 kk MIMON un een 5 3 2 BIOCK Gla 8 gz e e e e e Ke e e 6 PD DUCA OMS amana alm dalan ee dedemden elele do albert 4 1 me e e SS pe YELE ent re E A e RR MERE ete eae Ar A Re 7 4 1 1 PCtoPCconnections UsingModeti 8 4 1 2 Connecting a PC to the 7000 module Using Mode 2 9 4 1 3 7188 Embedded Controller to 7000 module2. Tool SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 16 5 2 SST 2450 Settings When setting the SST 2450 you should first use a wire to connect the SET and GND pins Quickly power off and power on the SST 2450 then launch the setting software program There are only 3 steps required to make your settings 1 Open a Serial Port 2 Setting the operating mode 3 Exit the program When setting the operating mode please refer to the following steps When you set the SST 2450 you should never use the following settings SST 2450 A SST 2450 B Half duplex Half duplex These settings will cause the SST 2450 set as the Master to be always on high power status and will cause the SST 2450 to fail Please note that this situation isn t covered by our warranty The correct settings are as follows SST 2450 A SST 2450 B Full duplex Full duplex or SST 2450 A SST 2450 B Half duplex Half duplex If you have a SST 2450 Network i e more than 2 SST 2450 devices you are only able to use the following specific setting for all of your SST 2450 devices Half duplex SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 17 select a COM port from which your SST 2450 is connected to the PC In the setting mode the baud rate must be set at 9600bps and the Line control values must be N 8 1 Click the Open button to open a connection to the device then click t
3. Using Mode 3 10 4 1 4 ConnectingaPCtoaPLC singMode3 11 4 1 5 Using the 188asaBridge UsingMode3 12 4 2 NetWork COMMU CAU OH een ineree rege 13 4 2 1 ADDIICATON Tasse E 13 4 2 2 ABPIICAHON Zen 14 Quick StartinstructionsfortheSS1 2490 15 Sidi MAS TAMING tie SOM WANG ict clacton tin aera arcs nasse 15 D2 90 152450 SEllNg sasesesnenanenaene a 17 9 9 Testing TING SS F 24 an ss seli inan dala izi india oni ln di dininden Senin 19 TFOUDIC SHOOT aska anlamakla a l k ad iel e Meh aye Bize al Menide be ik er 20 DIMENSIONS a a a AN a AD AN aaa Mal m Madak yaman 21 DMT VIO CVA zz an au tg u enlem de inne oiadeseeaaieens 22 EXIELNAL AICI a e a a ede a da da da Sala Sl Sa ee dl Gard ye aze 23 9 1 ANTS Omn darectonal une ye elde lyeldyi 23 9 2 ANTIS COMMA ONS CHONG anne 24 9 3 ANT 21 Directional sense 25 D l en A ene an e li er rere 26 SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 2 1 Introduction SST 2450EXT is a spread spectrum radio modem with controlling an RS 232 RS 485 interface port It is designed for data acquisition and control applications between a host and remote sensors It is also useful for those applications where the installation of cable wire is inconvenient The SST 2450 can be used not only in peer to peer mode refer to page 8 but also in a multi p
4. ar W Setting Error EHER Subject 1 Please use a wire to connect the SET and GND pins 2 Reset the SST 2450 Follow the steps shown on the error screen Testing error f you are attempting to test your SST 2450 using the software but are unable to access the testing tool the following screen will appear OX Subject 1 Please remove the wire you use to connect the SET and GND pins 2 Reset the SST 2450 Follow the steps shown on the error screen SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 20 Dimensions 2950 A 7 dh4 5X4 1 il 8 KY N 35 30 2 SCREW M3 Rear View Side View 33 00 ail KN Top View Un t mm 10 5 Front View SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 21 Din rail Mounting 8 SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 22 9 External Antenna Using an external antenna in conjunction with the SST 2450 allows the device to be used outdoors The antenna is even water resistant Simply replace the default antenna with an external antenna and you will be able to transmit data across distances of up to 1KM 9 1 ANT 8 Omni directional Gain 8dBi Polarization Linear Power hand
5. audrate 57600bps Max SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 11 4 1 5 Using the 7188 as a Bridge Using Mode 3 I 7000 Both SST 2450 modules settings are as follows Half duplex Synchronous Slave Baudrate 57600bps Max SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 12 4 2 Network communication 4 2 1 Application 1 Tt 7 gt _ 485 Network All SST 2450 modules settings are as follows Half Duplex Synchronous Slave Baudrate 57600bps Max SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 13 4 2 2 Application 2 x wn ya 4 4 y lt 4 i N j dr 7 i i i 4 i i 4 ik ww ugs CCTV mma 9 5 R z CCTV RS e gt All SST 2450 modules settings are as follows Half duplex Synchronous Slave Baudrate 57600bps Max Data Format E 8 1 SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 14 5 Quick Start instructions for the SST 2450 The SST 2450 is set by using a software utility By using this tool you are able to avoid disassembling the case The utility not only provides a setting interface but also a testing interface When you have finished making the settings you can simply click a button to test the SST 2450 using the same software 5 1 Installing the software Double clicks the Setup exe file which is found in the Napdos Wireless Wirele
6. e SST 2450 you need to contact the local distributor to get new chip with new firmware Then refer to Figure 10 1 Figure 10 2 and Table 10 1 to adjust the suitable SST 2400 jumper values SST 2400 Jumper definition Frequency e an OOO OOO LOOOLOOOOOOO iin O P N code O LSB Figure 10 1 Jumper values 551 2400 P N code and Frequency oda Bob sod Bilo odo Hoo 606 0 2 3 4 5 6 7 Figure 10 2 SST 2400 and SST 2450 P N code and Frequency reciprocal table PIN code ST 2400 SST 2450 ST 2400 SST 2450 BER a a ae 2 _ 5 BE a NE a 0 0 ae 1 1 2 2 2 S 4 4 a ee a 6 6 Table 10 1 SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 26
7. follows 1 Launch two copies of the SST 2450 setting tools 2 Click the Testing SST 2450 button on each and the following screens will appear 3 Attempt to send data to each port in the following manner mM Inthe COM1 window type Hi in the field the click the Send button mM Inthe COM2 window type Hello in the field the click the Send button 4 Ifthe transmission has been successful the messages should appear in the Send and Receive fields as indicated below Click the Clear button to clear these fields 5 Click the Close button to close the connection 6 Click the Exit Program button to quit 5T 2450 Setting Tool V 2 2 0 COMI T 2450 Setting Tool V 2 2 0 COM2 COM status COM status Port Baud Rate i Port Baud Rate IT Setthe Set the st t Line control SST 2450 Line control SST 2450 T 245 dg ga eB Exit Program Exit Program Send string with Auto send Send string with Auto send 8 None DU ER nterval 500 ET None m Interval 500 Set w C CRLF w C CRLF un en C LF Send Stop C LF Trnsmit string H Send Trnsmit string Hello Send Receive Send Receive iz Clear Clear Clear Clear SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 19 6 Troubleshooting Setting error f you are attempting to set your SST 2450 using the software but are unable to access the setting tool the following screen will appe
8. he Setting SST 2400 button to continue f gt gt l 2490 Setting Tool V 2 2 0 COM2 COM status Dart Baud Rate 3 54 EI N Nad Set the Test the 2 Line control fea SST 2450 S ST 2450 e 2 The following screen will appear From the options shown in the nterface amp Mode status panel choose a suitable operational mode for your system After making your selections click the Set button Repeat this procedure for Set Baud rate amp Data Format Set P N code and Set Channel making sure you click the Set button each time otherwise the amended values will be lost Click the Save amp Exit to close the setting screen All settings not saved will be lost Click the Save amp Exit button to save the new setting values Line control No 4 CI Exit Program Interface amp Mode Status Set Baud rate amp Data Forma Interface RS232 Baudrate e00 Mode Slave HalfDuplex Data Format NG Sync Set Set PIN code Set Channel PN Code fi Set Channel D Read Statud Save amp Exit 2 SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 18 9 3 Testing the SST 2450 This tool is for testing the transmissions between two PCs using the SST 2450 Please note that before you use this function you must make sure that you have removed the wire that you used to connect the SET and GND pins The testing method is as
9. ling 10W Impedance 50 Ohms Connector SMA Cable RG 58 100cm Gain Pattern ge Nu 77 Why OTHE SMM R ZN N SUIT SO 290 260 279 280 H Plane Field Patterns a LAR oO R N DISS LEN AS i SS nn Why G it all P lt i UV KE 2 z SL AML wu Me iy gt Mik M Zi J 4 P AS i Ws Y x SS ZN N S X lt 0 E Plane Field Patterns SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 23 9 2 ANT 15 Directional Connector SMA Male o_o Gain 15dBi Polarization Linear Impedance 50 Ohms Radome material RG 58 100 cm Gain Pattern 1 00 san wo 170 9 H Plane Field Patterns E Plane Field Patterns 200 160 190 180 170 SST 2450 Wireless Modem User s Manual Ver1Fgb 2003 OMH 030 10 24 9 3 ANT 21 Directional Gain 21dBi Polarization Linear Power handling 20W Impedance 50 Ohms Connector N Type Female Radome material ABS Gain Pattern H Plane Field Patterns E Plane Field Patterns 9 4 Other Antennas http www icpdas com products GSM_GPRS wireless external_ antenna htm SST 2450 Wireless Modem User s Manual Ver1Fgb 2003 OMH 030 10 25 10 Appendix How should I communicate between the SST 2450 and the SST 2400 f you want to use the SST 2400 to communicate with th
10. oint structure refer to page 13 The SST 2450 is based on a direct sequence spread spectrum and RF technology operating In the ISM bands with a Frequency Range of 2410 496MHz 2471 936MHz The Channel Spacing is 4 096MHz The SST 2450 is similar to the SST 2400 with the major difference being the setting control method The SST 2400 is set using jumpers whereas the SST 2450 is set using a software utility The older SST 2400 can work in conjunction with the new SST 2450 by changing its internal 8051 chip The new chip includes updated firmware so please contact us and we will send a new chip Refer to page 26 for detail SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 3 2 Specifications Frequency Range 2 4GHz 2410 496MHz 2471 936MHz Channel Spacing 4 096MHz Output Power 0 02W Transmit power 13dBm 1dBm Modulation technique GMSK Radio technique Direct sequence spread spectrum Duplex Mode TDD for Full duplex Number of channels 16 Number of PN codes 16 PN code rate 1 365 Mchips sec Interface RS 232 RS 485 Communication range Dependent upon the external antenna the default is 300M Maximum data transfer rate in asynchronous mode Full duplex mode 9 6Kbps Half duplex mode 28 2Kbps Maximum data transfer rate in synchronous mode Full duplex mode 19 2Kbps Half duplex mode 57 6Kbps Setting Method Software utility Antenna type Flexible Data Format N 8 1 or E 8 1 dependent upon the
11. software setting Data bit error rate gt AFTER DSST PROCESSING BER of RF Module lt 1 1000 90 2dBm Processing Gain 12dB Input voltage 10 30V DC Input current 250mA Typical Power Consumption 1 5W Size 121 5mm L x 72mm W x 33mm H Weight 200g Operating temperature range 0 50C Operating humidity range 0 90 SST 2450 can work together with SST 2400 however the 8051 chip in the SST 2400 must be changed SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 4 3 Product Description 3 1 Pin assignment SST 2450 Radio Modem Frequency Range 2410 2471MHz Channel Space 4 096 Mhz Communication Range 100 300M Interface RS 232 RS 485 SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 5 3 2 Block diagram lt SST GFSK RF Transceiver Module Antenna Embedded Controller VS Power GND Regulator The SST 2450 wave signal cannot pass through metallic obstacles So this product is not suitable for this type of metallic environment The signal can pass thorough a cement wall but will be weakened to half its efficiency for every 15cm of the wall s thickness SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 6 4 Applications 4 1 Peer to Peer There are three types of peer to peer operational modes to choose from The following table outlines the settings informa
12. ss Modem SST 2450 Setting Tool folder on the attached CD or download the compressed file 2450Tool exe from ftp ftp icpdas com pub cd 8000cd napdos wireless wireless modem sst 2450 settingtool Once you see the screen shown below click OK Click Exit Setup to cancel the installation J 551 2430 Setting Tool Setup E1 Welcome to the gt gt T 4400 Setting Tool installation program etup cannot install system files or update shared files 1f they are in use Before proceeding we recommend that you close any applications you may be running Exit Setup SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 15 The following screen will then be shown 1 We recommend installing the software into the default directory However you may choose a different directory by clicking the Change Directory button and selecting the directory where you want to install the software B button to install the software 2 Click the 3 Click Exit Setup to cancel the installation 4 SST 2450 Setting Tool Setup Besin the installation by clicking the button below Chek this button to install T 2450 Setting Tool software to the specified destination directory Directory CiProgram Files Ss T 2450 Setting Tooli Change Directory Exit Setup Once the software has been installed you will be able to find the executable file in Start Application file gt SST 2450 Setting
13. the other is the Slave This mode simulates the Half duplex mode One device will respond when it receive a command from another device This is the only mode which supports a SST 2450 network refer to page 13 This mode is also requires a fixed data format to be either N 8 1 or E 8 1 Setting Limitative Half duplex Synchronous Both SST 2450s are slaves Refer to chapter 5 for further setting argument information SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 7 4 1 1 PC to PC connections Using Mode 1 Full Duplex Full Duplex Asynchronous Asynchronous Master Slave Baudrate 9600bps Max Baudrate 9600bps Max SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 8 4 1 2 Connecting a PC to the 7000 module Using Mode 2 Thermocouple l 7018 b g Full Duplex Full Duplex Synchronous Synchronous Master Slave Baudrate 19200bps Max Baudrate 19200bps Max SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 9 4 1 3 Connecting the 7188 Embedded Controller to the 7000 module Using Mode 3 RS 485 Network Both SST 2450 modules are setting as follows Half Duplex Synchronous Slave Baudrate 57600bps Max SST 2450 Wireless Modem User s Manual Ver1 5 Feb 2003 OMH 030 10 10 4 1 4 Connecting a PC to a PLC Using Mode 3 Both SST 2450 modules settings are as follows Half Duplex Synchronous Slave B
14. tion and limitations In this mode the SST 2450 can accept and transmit any signal from the device This mode works by using a sample and rebuild The SST module samples the input signal then converts it into a wave signal technique before transmitting it to another SST module When the other SST module receives the wave signal it transforms the signal back into the original format The sample rate used is 32kb per second so the device cant accept higher speed signals The maximum signal speed is less than 9600 bps Any data format may be need in this mode Setting Limitative Baud Rate must be 9600bps or below Full duplex Asynchronous One SST 2450 is the Master the other is the Slave Mode This mode simulates the Full duplex mode The device can transmit and receive signals at the same frequency The RF processor uses the timer controller to simulate Full duplex Initially the module that has been set as the master is in transmission mode After 4ms it switches to receive mode The slave module is inverse to thus For example if the master is in transmission mode but a signal need to be transmitted by the slave at the same time the slave will store the signal in it s buffer and will transmit once the master is in the receive mode In Mode 2 the RF signal will be processed by the 8051 CPU so requires the fixed data format to be either N 8 1 or E 8 1 Setting Limitative Full duplex Synchronous One SST 2450 is the Master and
Download Pdf Manuals
Related Search