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Raveon RV-M8S Technical Manual

Data / paging radio modem
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RV-M8S
Da ta / Pa gin g Radio Modem
Te c hn ical Ma nu al
Version B6
May 2014
Raveon Technologies Corporation
2461 Impala Drive
Carlsbad, CA 92010
www.raveon.com
Company Confidential
1
Raveon Technologies Corp.

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  • Page 1 RV-M8S Da ta / Pa gin g Radio Modem Te c hn ical Ma nu al Version B6 May 2014 Raveon Technologies Corporation 2461 Impala Drive Carlsbad, CA 92010 www.raveon.com Company Confidential Raveon Technologies Corp.

  • Page 2: Table Of Contents

    Data Modem Mode Related Commands ..................17 6.3. Paging Receiver Related Commands ..................18 6.4. Factory Default Settings..............Error! Bookmark not defined. RV-M8S-xx (Transceiver) ..............Error! Bookmark not defined. Using the M8S – Packet Data Mode ............20 7.1. Setup ............................21 7.2.
  • Page 3 Symptom: Receive light blinks, but no data is received ..............37 Symptom: Long delay before transmitting ................... 38 Symptom: Cannot enter Command Mode ................... 38 Symptom: Modem appears dead......................38 Symptom: Repeater will not repeat............Error! Bookmark not defined. Mechanical ....................39 Company Confidential Raveon Technologies Corp.

  • Page 4: General Information About The Rv-M8

    Raveon accepts no responsibility for damages of any kind resulting from delays or errors in data transmitted or received using Viper SC, or for the failure of Viper SC to transmit or receive such data.

  • Page 5: Oem Use

     Increase the separation between the equipment and receiver.  Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.  Consult the dealer or an experienced radio/TV technician for help. Company Confidential Raveon Technologies Corp.

  • Page 6: Overview

    The M8S can be configured in either a paging decoder mode or a data modem mode. The command-line interface is similar to Raveon’s other data radio products, and configuring the mode is very easy. The M8S also has a digital input pin that may be used to electrically change modem types between data modem and paging modes.
  • Page 7 POCSAG decoder mode operates at 512, 1200, and 2400 baud.  1-3 programmable cap codes.  Promiscuous mode to receive all pages on the air.  Automatic and manual switching between numeric and alpha-numeric modes.  Small sized and very rugged extruded enclosure. Company Confidential Raveon Technologies Corp.

  • Page 8: Specifications

    3. Specifications 3.1. General Model Number, transceiver: ............. RV-M8S-xx Frequency Bands: ................-VC 216-220MHz Serial Port Baud Rates ..............1.2k, 2.4k, 4.8k, 9.6k, 19.2k, 38.4k, 57.6k, 115.2k Over-the-air baud rates ..............1200, 2400, 4800, 9600 (default) Operating Mode ................. Simplex or Half-duplex Full Spec Operating Temperature range .........
  • Page 9 DC current draw, standby mode .... < 150uA IO Voltage Levels ........3.3V digital logic RX and TX data .......... Transparent Async Word length ..........8 bits Format ............N, O, or E Modem handshake signals ....... RTS, CTS, CD Company Confidential Raveon Technologies Corp.

  • Page 10: Electrical Inputs And Outputs

    Output to drive external dual-color LED. Do not connect the LED to ground or DC voltage. System Ground to M8 Backup battery input to CPU to retain memory. Not required to be connected to anything. Company Confidential Raveon Technologies Corp.

  • Page 11: Heatsinking

    The Red LED will blink when the modem transmits, and the green LED will blink on receive of data. It will also blink orange when decoding a POCSAG message. Company Confidential Raveon Technologies Corp.

  • Page 12: User Serial Port Commands

    When the M8S modem first enters the Command Mode, it sends the phrase Raveon M8S 5.3. Setting a Parameter To set a parameter in the M8S modem, enter the Command Mode as described above. Then enter the proper AT command, a space, the Company Confidential Raveon Technologies Corp.

  • Page 13: Reading A Parameter

    The CONFIG button is located inside the modem. Remove the rear cover, exposing the two circuit boards. The button is in the front edge of the radio module’s circuit board. The default settings that the modem will revert to when the CONFIG button is pressed are: Company Confidential Raveon Technologies Corp.

  • Page 14: Exiting The Command Mode

    3. Time Out. After a pre-set amount of time (60 seconds is the factory default time), the modem will automatically exit the Command Mode, and continue normal operation. Changes will not automatically be saved. This time-out duration may be set with the ATCT command. Company Confidential Raveon Technologies Corp.

  • Page 15: Command Mode Commands

    Enter in Hz or MHz. Same as Range: See product data ATFX issuing an ATFR and an ATFT command. The frequency will sheet. automatically be saved in non-volatile memory (flash) for this current channel number. Company Confidential Raveon Technologies Corp.
  • Page 16 Transmit Test Data – When issued, the modem will begin ATTD 0 = Go back to normal transmitting data. The type of data sent is set in the parameter. 1 = Random Company Confidential Raveon Technologies Corp.

  • Page 17: Data Modem Mode Related Commands

    FFFF to disable it. Address Mask – Configures local and global address space. ATMK FFFF Each digit may be a 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,or F. In most Range: 0000 - FFFF applications, this is kept at FFFF. Company Confidential Raveon Technologies Corp.

  • Page 18: Paging Receiver Related Commands

    6.3. Paging Receiver Related Commands The following commands are specific to the operation of the M8S in the paging decoder mode. The ATMT and ATMA commands configure the M8S to operate in the paging decoder mode. Company Confidential Raveon Technologies Corp.
  • Page 19 Enter “CC” to see a list of all pager cap CC 3 -1 codes. Promiscuous Mode. Enable/disable promiscuous mode. 0 or 1 0 = off, 1 = ON (receive all paging messages). 512, 1200, 2400 Pager Data Rate. Parameter is 512, 1200, or 2400 Company Confidential Raveon Technologies Corp.

  • Page 20: Using The M8S - Packet Data Mode

    Packet Mode offers the user, most user applications will seamlessly work using the M8S in its Packet Mode. Repeatable and Routable. M8S packets are structured so that they may be repeated using a store-and-forward repeater, and/or routed using specialized hardware. Company Confidential Raveon Technologies Corp.

  • Page 21: Setup

    Serial port baud rate ATMY The ID of this unit. Default is 1234. ATMK The network address mask. Default is FFFF. ATDT The address of the unit this modem will talk to. Default is 1234. Company Confidential Raveon Technologies Corp.

  • Page 22: Programming Channels And Frequencies

    The over-the-air data rate us usually 4800 baud for narrow-band channels, and 9600 baud for wide-band, although faster or slower rates may be used. Company Confidential Raveon Technologies Corp.

  • Page 23: Busy-Channel Lock Out

    ID. An Address Mask is used to select which digits of the address will be used to determine if a particular reception was intended for the M8S modem. The default Address Mask is FFFF, which means all digits will be used. With Company Confidential Raveon Technologies Corp.

  • Page 24: Group Numbers

    Unit Address instead of 1234. There are over 65,000 addresses available. The ATLA command can be used to set an additional address that the M8S will listen for. Company Confidential Raveon Technologies Corp.

  • Page 25: Broadcast Transmissions

    Effective Unit Address. The Effective Unit Address is compared to the Effective Destination Address, and if the two are identical, the data will be received. Note: Logically 1 = 1, 0 = 0, 0 = 0, 1 = 0 Company Confidential Raveon Technologies Corp.

  • Page 26: Addressing Examples

    FFFF requires that all digits in the address match. . Example 3 (able to receive a data from a group, 1230 – 123F) Sending to Destination Address = 1236 Receiving M8S Unit Address = 1234 Receiving M8S Address Mask = FFF0 Company Confidential Raveon Technologies Corp.

  • Page 27: Store-And-Forward Repeating

    Data is transmitted over-the-air in bursts called packets, and each packet has the Unit ID of the M8S that sent the data and the Destination ID of the unit that the data is intended for. Company Confidential Raveon Technologies Corp.
  • Page 28 C, and is configured to repeat all messages to/from G. The following table illustrates one possible way the M8s could be programmed to accomplish this type of system. Company Confidential Raveon Technologies Corp.
  • Page 29 In other words, all transmissions from will be repeated by B. To view the Repeater Table, use the ATX command, with no parameter. To view a single entry in the table, use the ATXn, where n=1, 2, 3, or 4. Company Confidential Raveon Technologies Corp.
  • Page 30 0. For example, to disable entry 1, use the ATX1 0 0 0 0 command. There can be an issue with regard to store-and-forward repeating and busy channels, particularly on polled systems. Raveon’s M8S wireless modem has a number of provisions in it to make store-and-forward repeating work smoothly.

  • Page 31: Debug Related Commands

    If it does, it answers with a response transmission, containing its ID and the signal strength of the reception. . STAT Display statistics of how the modem is working. Company Confidential Raveon Technologies Corp.

  • Page 32: Diagnostic Provisions

    Compile date and time – Returns the data and the time that the Date and time firmware was compiled. Run Time – Returns the amount of time that the modem has been Run time display powered up and running. screen Reset all statistics counters Company Confidential Raveon Technologies Corp.

  • Page 33: Tune-Up And Alignment

    All RF modems in the 2 = 2400 7 = 5142 2L network must use the same over-the-air baud rate. 3 = 4800 8 = 9600 4L 4 = 8000 4L 9 = 2000 2L Company Confidential Raveon Technologies Corp.

  • Page 34: Center Frequency

    1. Set-up a service monitor to monitor the FM deviation of the transmitted signal on an oscilloscope. The frequency response of the demodulated FM signal must be greater than 10Hz to 5kHz without any de-emphasis. Company Confidential Raveon Technologies Corp.

  • Page 35: Carrier Detect

    If RF is present, but it is voice or some non-data single, then the CD pin is negated. Mode 2 - CD ON In this mode, the CD pin is always asserted. Company Confidential Raveon Technologies Corp.

  • Page 36: Mode 3 - Cd Off

    The CD signal will normally stay low (near 0 volts), and when the Output Data Framing takes place, it will go high (about 3V). If Output Data Framing is enabled, any other Carrier Detect and flow control output configuration is ignored. Company Confidential Raveon Technologies Corp.

  • Page 37: Troubleshooting

    Try all possible baud rates, and see if one of them works with the modem. Alternately, remove the rear cover of the modem, and press the CONFIG Company Confidential Raveon Technologies Corp.

  • Page 38: Symptom: Long Delay Before Transmitting

    Low Power Mode. ATSM 1 enables it, and ATSM 0 disables it. If LPM is used (ATSM 1), then the M8S will turn off when the DTR line is off, or the program connected to the serial port is closed, or the RS-232 connector is un plugged. Company Confidential Raveon Technologies Corp.

  • Page 39: Mechanical

    12. Mechanical A drawing is shown below. Company Confidential Raveon Technologies Corp.

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