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2. Point to point telemetry using FFSK or GMSK modulation with RS232 control via a

micro-controller. User applications for this may include remote control data links

such as control of a remote paging transmitter or single direction status reporting or

data flow (see Figure 4.2.) from a gas pipeline monitoring station.

Control Point

Power Supply

Commuication

Interface Cable

Com1

maxon

Antenna

SD-160

Com2

Radio Control

Data In/Out

Micro-

Controller

SD-160

To / From
Equipment

Remote Site 1

maxon

+12V PSU

Host

Computer

Radio Link

Figure 4.2. Telemetry Application

3. Multiple remote sites to control irrigation system (see Figure 4.3.)

Control Point

Power Supply

Commuication

Interface Cable

Com1

maxon

Antenna

SD-160

Com2

Radio Control

Data In/Out

Host

Computer

maxon

P
S
U

maxon

Micro-

Controller

Electric
Pump

Water

Tower

Figure 4.3. Irrigation equipment control Application

Содержание ACC-513

Страница 1: ...ACC 513 ACC 514 GMSK FFSK Modem for SD 160 Series Technical Manual Rev 0 0 Jul 23 2003 Maxon Telecom Co Ltd...

Страница 2: ...cations 12 5 Operation 13 5 1 Serial interface 13 5 2 Configuring the SD 160 16 6 Understanding Modem Option 19 6 1 Modem Select 19 6 2 System Option 1 20 6 3 System Option 2 21 6 4 System Option 3 22...

Страница 3: ...of Operation Test 30 8 1 Example of using Hyper Terminal 30 9 Pin out chart for ACC 513 514 40 9 1 Pin out for ACC 513 40 9 2 Pin out for ACC 514 41 10 product version information 42 10 1 Version inf...

Страница 4: ...by the audio filter resulting in a broken data transmission To overcome these problems and provide maximum flexibility an FFSK Fast Frequency Shift Keying internal option board modem can be used Our...

Страница 5: ...its Parity None Number of Stop Bit 1 bit Data flow control None Software Xon Xoff Hardware RTS CTS Programmable Tx forcing mode Configures the modem to transmit regardless of squelch state Data Block...

Страница 6: ...r of Data Bit 8 bits Parity None Number of Stop Bit 1 bit Data flow control None Software Xon Xoff Hardware RTS CTS Programmable Tx forcing mode Configures the modem to transmit regardless of squelch...

Страница 7: ...ng the radio wear a conduction wrist strap to prevent any components on its main board from being damaged by electrostatic discharge Opening the Upper Cover 1 Unfasten the four mounting screws located...

Страница 8: ...and then push header into socket 2 Align the 14 pin Molex female connector of ACC 513 514 to its male connector on the digital B D 3 Attached the ACC 513 514 to the digital B D by pushing down Figure...

Страница 9: ...the Upper Cover 1 Align the upper cover with the bottom cover 2 Close the upper cover Figure 3 6 Closing the upper cover 3 Screw down the bottom cover of the radio Figure 3 7 Inserting the four mounti...

Страница 10: ...utomatic location reporting polling Typical function specific systems may include the following 4 1 Fixed applications 1 Control point to multiple outstation tele control Used for control and exceptio...

Страница 11: ...ower Supply Commuication Interface Cable Com1 maxon Antenna SD 160 Com2 Radio Control Data In Out Micro Controller SD 160 To From Equipment Remote Site 1 maxon 12V PSU Host Computer Radio Link Figure...

Страница 12: ...ost Computer Figure 4 4 Job allocation and status reporting Application 5 Marine data communications for ports harbors and inland waters allowing GPS navigation information to be relayed from vehicle...

Страница 13: ...escribes the basic connection for data transmission or radio control and then explains important parameters for data transmission 5 1 Serial interface In some systems where data is required to be inpu...

Страница 14: ...data format TTL level I P 9 Speaker filtered OUT Audio output from the audio amplifier It s filtered by tone filter de emphasis circuit Audio 1KHz audio at 60 peak system deviation produces Nominal 1V...

Страница 15: ...and Figure 5 1 shows an interface cable for data communication and its inner connection In the connection red lines pins 3 6 and 12 on the SD 160 are the minimum required connection to transmit and re...

Страница 16: ...l 5 2 Configuring the SD 160 In case of mobitex application which is an international and open standard for dedicated wireless data for professional users all timing is decided by recommendation of ne...

Страница 17: ...bit stream Data into SD 160 P T T Data into RF Stage Tx Delay Time1 Dump mode Unavailable Auto mode Created by Slave MCU Dump mode Inputted by External Equipment Tx On Delay Tx Off Delay Inputted Data...

Страница 18: ...signaling path to Modem see Figure 5 3 If insufficient preamble code is released from another radio data loss will occur by missing synchronization So a minimum period of time is required for synchron...

Страница 19: ...annel space are selectable and in SYSTEM OPTION1 transmission mode of radio and functions of forcing TX and initializing Hyper Terminal are chosen In SYSTEM OPTION 2 options for R TX data format and i...

Страница 20: ...o The SD 160 will transmit simply by sending data b Dumb Mode The Radio should be controlled by user application manually For instance to transmit data you should input PTT RTS signal besides assigned...

Страница 21: ...re is no response signal after this specified time elapses next data will be transmitted next data will be transmitted on receiving response signal Normally 1000ms Default is recommended d Flow Contro...

Страница 22: ...x Off Delay If all assigned data is transmitted after the transmission the Radio keeps the TX status during this period of time TX stops Normally in case of the SD160 series 0ms Default is recommended...

Страница 23: ...smission For this reason there is nothing to do to as a user except inputting data to the radio Even though there is a timing difference between inputted data from the DTE and transmitted data from th...

Страница 24: ...em DATA Modulated Data Received Data RXD GND RS232 Control Line Modem Option Board Master MCU Control Line SD160 Main Digital Board SD160 RF Board Buffer 1 Buffer 2 Figure 7 1 Data and Control signal...

Страница 25: ...ends command of transmission request which is the CTS signal to the DTE DTE Slave MCU Modem IC RF TXD Modem CTRL Modem DATA Modulated Data Received Data RXD GND RS232 Control Line Modem Option Board M...

Страница 26: ...1 4 None No flow control Flow control between the modem and the DTE can be turned off altogether With flow control disabled inputted data from the DTE will be continuously transmitted but there is no...

Страница 27: ...then release data to radio This size of data to be released should be limited under size of the buffer memory of the slave MCU After all assigned data is transmitted the DTE returns RTS signal below 2...

Страница 28: ...occurs between the radio and the DTE when the radio receives data as much as the assigned data block size from the DTE DTE SD160 SD160 DTE Data to SD160 Data Data from SD160 Ack Signal Data Ack Signal...

Страница 29: ...is treated as valid For your reference maximum allowable error in this start data is 3 bits and is selectable in the ACC916 programming software The size of Data is optional in the ACC 916 programming...

Страница 30: ...tion program such as Hyper Terminal is explained Part 8 1 is an example using Hyper Terminal GMSK modem modem speed of 9600bps and software flow control 8 1 Example of using Hyper Terminal 8 1 1 Prepa...

Страница 31: ...Click on OK d Select the detail of Com1 port 9600bps 8 bits of Data bits None of Parity one bit for Stop bits and Xon Xoff for Flow control and then click the OK button e Main window appears click Ic...

Страница 32: ...32 f Click the Settings tab button g Click the ASCII Setup button...

Страница 33: ...33 h Check Send line ends with line feeds and Echo typed characters locally and click the OK button i By clicking the OK button the software escape from the properties window...

Страница 34: ...ng main window will be displayed basic setting up is completed 8 1 2 Test examples a Text character communication Type any types of character with keyboard and transmitted text will be displayed in re...

Страница 35: ...Send Text File 2 Select text file of about 2K bytes Click the Open and the text file will be transmitted If there is no text file you can make one For your reference you can determine the size of tex...

Страница 36: ...36 3 The received text file data is displayed in the main window like the following c Any types of data file except text file communication 1 Select Transfer Receive File...

Страница 37: ...37 2 Determine receiving path and select Zmodem of receiving protocol and then click the Close button to return to the main window 3 Select Transfer Send File...

Страница 38: ...38 4 Determine transmitting file and select Zmodem of protocol and then click the Send button 5 The following pop up box appears and state of the file transmission is displayed...

Страница 39: ...39 6 In receiving side the following pop up box appears and state of file reception is displayed 7 If transmission and reception of file have finished each pop up box is automatically closed...

Страница 40: ...gramming is effective I P 10 CMD_IN OUT Data Input and Output for Modem programming I P O P 11 CMD_CLK Clock Input for Modem programming I P 12 MODEM_SEL It Indicates modem type to Master MCU for prog...

Страница 41: ...MD_IN OUT Data Input and Output for Modem programming I P O P 11 CMD_CLK Clock Input for Modem programming I P 12 MODEM_SEL It Indicates modem type to Master MCU for programming O P 13 RX_IN The FFSK...

Страница 42: ...contains a modem firmware version string Copyright 2003 2004 Maxon Telecom CO LTD Version 1 0d After item of initializing data for HT of modem option in ACC 916 is enabled if the radio is turned on i...

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