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Summary of Contents for Maxon ACC-513E
- Page 1 ACC-513E/ACC-514E (GMSK/FFSK Modem, SD-170E Series) Technical Manual Rev 1.0 July 17, 2013 Maxon Telecom Co., Ltd...
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Page 2: Table Of Contents
Contents 1. Introduction................4 2. Technical Specification............. 5 2.1. Specification for ACC-513E............5 2.2. Specification for ACC-514E............6 3. Installation of ACC-513E/ACC-514E........7 4. System Application..............10 4.1. Fixed applications................10 4.2. Mobile Applications................12 5. Operation.................. 13 5.1. Serial interface ................13 5.2. Configuring the SD-170E ..............16 6. - Page 3 8. Example of Operation Test............. 30 8.1. Example of using Hyper Terminal..........30 9. Pin-out chart for ACC-513E/514E.......... 40 9.1. Pin-out for ACC-513E ..............40 9.2. Pin-out for ACC-514E ..............41 10. Product version information..........42 10.1. Version information.................42...
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Page 4: Introduction
1. Introduction The ACC-513E and ACC-514E are optional accessories that can be installed into the SD-170E series radios to improve capability for data applications. The goal of an internal modem is to improve the efficiency for data transmission and provide maximum flexibility for user application. -
Page 5: Technical Specification
2. Technical Specification 2.1. Specification for ACC-513E Modulation type: Modified GMSK Maximum RF Baud rate: 4800 (12.5 KHz) channel spacing and 9600 (25 KHz) channel spacing (Programmable, see below table) Data Sensitivity: below –113dBm for 1 in 100 error rate... - Page 6 Modulation type: FFSK Maximum RF Baud rate: 2400 (12.5 KHz) channel spacing and 4800 (25 KHz) channel spacing (Programmable, see below table) Data Sensitivity: below –110dBm for 1 in 100 error rate Mark /Space tone freq. (for each available RF Baud rate): 1200Hz (M) / 1800Hz (S) at 1200bps 1200Hz (M) / 2400Hz (S) at 2400bps 2400Hz (M) / 4800Hz (S) at 4800bps...
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Page 7: Installation Of Acc-513E/Acc-514E
3. Installation of ACC-513E/514E This section explains step-by-step how to disassemble the SD_170E radio, install the ACC- 513E/514E, and reassemble the radio. Important Before disassembling and reassembling the radio, wear a conduction wrist strap to prevent any components on its main board from being damaged by electrostatic discharge. -
Page 8: System Application
4. System Application The SD-170E is a flexible data radio transceiver intended for a wide variety of applications. The basic radio data applications may be divided into several categories, examples of these are: • Point to point telemetry (Data logging system) •... - Page 9 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.
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Page 10: Mobile Applications
4.2. Mobile Applications 4. Local area mobile system for job allocation and status reporting to and from taxis. (see Figure 4.4). 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 or vessel to a control point. -
Page 11: Operation
In operation, the radio is placed into the transmit condition by receiving data from DTE. If the radio receives data, the slave MCU of the ACC-513E/514E saves that data in its memory and automatically creates a PTT signal at the same time to get the RF stage to prepare for transmission. - Page 12 the digital board. -12V = Rx Power B+ power connection. DC +12V nominal Serial Data Out Serial data output for radio control or program. TTL level (TXD) It uses asynchronous data format. Busy Logic level output from SD-170 to indicate whether a TTL level (CD) carrier is present or not...
- Page 13 The serial protocol supported by the ACC-513E/514E is fixed at 1 start bit, 8 data bits, 1 stop bit and no parity. Flow control can be selected as either hardware (RTS/CTS), software (XON/XOFF) and none. The serial baud rate is also user configurable and supports the following rates: 1200, 2400, 4800, 9600bps.
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Page 14: Configuring The Sd-170E
Figure 5.2. Interface cable for data communication and radio control 5.2. Configuring the SD-170E 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 network system. - Page 15 So, a minimum period of time is required for synchronization, this is given by modem IC specification and you can adjust this value within the limited range. Additional detailed parameters for ACC-513E/514E will be given in the next section.
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Page 16: Understanding Modem Option
6. Understanding Modem Option In this section, explanation of modem options in ACC-916E, PC Programmer is given. The modem option consists of four groups, MODEM SELECT, SYSTEM OPTION 1,2 and 3. In MODEM SELECT, the type of modem and modem speed for channel space are selectable and in SYSTEM OPTION1, transmission mode of radio and functions of forcing TX and initializing Hyper Terminal are chosen. -
Page 17: Modem Select
6.1. Modem Select a. GMSK/FFSK You can select modem type (GMSK/FFSK). Mark on check box. b. Modem Enable/Disable If you want to use modem, click on <Modem Enable> Button. c. Modem Baud Rate Table 6.1. Available Modem Baud Rate In above cases, Modem speed is selectable. 6.2. -
Page 18: System Option 1
c. TX Forcing Mode During RX mode, when the Radio receives data from the DTE, if TX Forcing Mode Option is enable, the radio will transmit data. If disabled, the radio will not. d. Initializing Data for HT (Hyper Terminal) This is a strongly recommended option when using Hyper Terminal. -
Page 19: System Option 2
such as PLL lock, Power-Up, stabilizing Power, and etc. So, it will degrade overall system performance. Usually, the SD-170E series uses at least 20ms (Default). f. Tx Delay Time 2 This is the required time to detect tone, and is only available for the FFSK Modem and channel with Tone (CTCSS/DCS). -
Page 20: Auto Mode
and handshaking. Basic pin connection types that can be used are a three, RXD, TXD and GND or five, RXD, TXD, GND, RTS and CTS signal line. RS232 is used according to flow control. In addition, the CD signal line can be utilized for your application. 7.1. - Page 21 7.1.2. Software flow control This flow control function uses three wires, RXD, TXD and GND in RS232. When DCE is receiving data from DTE, to prevent received data from exceeding the buffer1 capacity in DCE, the DCE sends command of transmission halt request which is XOFF code to the DTE.
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Page 22: Hardware Flow Control
7.1.3. Hardware flow control This flow control function is performed by using the control lines RTS(Request To Send), CTS(Cleat To Send), TXD, RXD and GND in RS232. When the DTE has data to be transmitted, After the DTE sends RTS signal to the DCE, the DTE waits for a CTS signal from the DCE. -
Page 23: None (No Flow Control)
Hardware preparation Change the jumper position of con407 as the following. Figure 7.5. Hardware preparation for Hardware flow control REMARK: RTS mode means the mode which uses RTS signal for radio control. The following modes use the RTS signal. • Hardware flow control at Auto mode •... -
Page 24: Dumb Mode
7.2. Dumb Mode To give compatibility with existent radio, this mode is provided. In this mode, Standard Terminal Emulation programs, such as Procomm, can be used for communication between the SD-170E radios but the PTT/RTS line has to be controlled, manually, from another source. -
Page 25: Test Mode
7.3. Test Mode This operating mode is simple transmission test. The radio transmits programmed data, " Testing Maxon Modem ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789 ", which exists in the internal memory of the modem. Refer to ACC-916E user manual for detailed instruction. 7.4. Operating Diagram... -
Page 26: Example Of Operation Test
Each data block is assembled with a preamble, ABDS, start data, data and end data. Detailed explanation is the following. The Preamble is data bits, which synchronize the modem IC in the receiving radio and the length of this data bit is selectable for your application in ACC-916E programming software. - Page 27 c. Select Com Port1, 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.
- Page 28 e. Main window appears, click Icon inside red circle. f. Click the “Settings” tab button.
- Page 29 g. Click the “ASCII Setup” button. h. Check “Send line ends with line feeds” and “Echo typed characters locally”...
- Page 30 and click the “OK” button. i. By clicking the “OK” button, the software escape from the properties window. j. If the following main window will be displayed, basic setting-up is completed...
- Page 31 8.1.2. Test examples a. Text character communication Type any types of character with keyboard and transmitted text will be displayed in receiving main window.
- Page 32 b. Text file communication → Select “Transfer Send Text File” ② Select a 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 text file because the text file is only for test.
- Page 33 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 Send Text File”...
- Page 34 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 Text File”...
- Page 35 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.
- Page 36 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.
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Page 37: Pin-Out Chart For Acc-513E/514E
9. Pin-out chart for ACC-513E/514E 9.1. Pin-out for ACC-513E... -
Page 38: Pin-Out For Acc-514E
10. Product version information 10.1. Version information The modem contains a modem firmware version string, “Copyright 2003-2004 Maxon Telecom CO., LTD Version 1.1”. After item of “initializing data for HT” of modem option in ACC-916E is enabled, if the radio is turned on, information of the modem...
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