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Raveon FireLine MURS band Technical Manual

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FireLine MURS band
D a t a Radio Modem
T e ch n ic a l M an ua l
Version D2
June 2006
Raveon Technologies Corporation
2722 Loker Avenue West, Suite D
Carlsbad, CA 92010
www.raveontech.com

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  • Page 1 FireLine MURS band D a t a Radio Modem T e ch n ic a l M an ua l Version D2 June 2006 Raveon Technologies Corporation 2722 Loker Avenue West, Suite D Carlsbad, CA 92010 www.raveontech.com...

  • Page 2: Table Of Contents

    Table Of Contents General Information about the FireLine ............4 1.1. Congratulations!........................... 4 1.2. NOTICE ............................4 1.3. Safety / Warning Information ....................... 4 1.4. Safety Training information: ......................4 1.5. FCC Compliance Information....................... 6 1.6. Features............................7 Specifications....................8 2.1. General ............................8 2.2.
  • Page 3 6.2. Command Mode ........................25 6.3. Setting a Parameter ........................25 6.4. Reading a Parameter......................... 26 6.5. CONFIG Button.......................... 26 6.6. Exiting the Command Mode....................... 27 6.7. Restoring Factory Defaults ......................27 6.8. Command Mode Commands ..................... 28 6.9. Setting the Over-The-Air Data Rate ................... 31 6.10.

  • Page 4: General Information About The Fireline

    1.2. NOTICE There are no user-serviceable points inside this transceiver. All service work must be referred to your Authorized Service Center or Raveon Technologies Service Department. 1.3. Safety / Warning Information WARNING - DO NOT operate theRV-M5-U radio modem when bystanders are within 2 feet (.6 meters) of the antenna.
  • Page 5 FCC RF exposure requirements. For Model RV-M5-M: Radiated frequency and Distance RV-M5-M 1.97 Feet (0.6 m) FCC ID: SRS-RV-M5-M Raveon Technologies Corporation For vehicular roof top installation, the antenna must be placed in the center of the roof.

  • Page 6: Fcc Compliance Information

    1.5. FCC Compliance Information This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

  • Page 7: Features

    Overview The FireLine RF data radio is a rugged high-performance, high-speed narrow- band data modem. It contains a receiver, a transmitter, and modem, creating an easy-to-use transparent data radio link. The FireLine’s user interface is asynchronous RS-232 data into and out of the FireLine (CMOS level optional).

  • Page 8: Specifications

    2. Specifications 2.1. General All measurements made per TIA-603-B Size (inches) ......................3.0D X 3.76W X 1.40H DC input voltage ......................... 9-16V DC Typical current draw, receiving, over-the-air rates < 4800bps ............<80mA Maximum current draw, receiving, over-the-air rates >= 4800bps ..........<110mA Current draw when transmitting data .............<1.7A max, 1.5A typical at 2watts Frequency stability........................

  • Page 9: Frequencies

    2.5. Frequencies The RV-M5-M MURS modem has five user selectable channels. The channel is selected with the ATHP command. The RV-M5-M modem is factory-set to these five channels, and the modem cannot be programmed to operate on any frequency other than these five. 151.820 MHz 151.880 MHz 151.940 MHz...

  • Page 10: Electrical Inputs And Outputs

    Pin 9 and ground to pin 5 of the 9-pin I/O connector. The FireLine modem is supplied with a DC power cable, Raveon part number 4C660. The connector housing on the DC power cable is a MOLEX 50-57- 9402.

  • Page 11: Serial I/O Connector

    3.3. Serial I/O Connector The 9-pin serial I/O connector is a female 9-p D-subminiature connector having the following pins configuration. Front-view of DB-9 connector on modem (female) Pin # Name Function Level / Specification Carrier detect If enabled, indicates presence of carrier. 0 means carrier is present.

  • Page 12: Using The Fireline Modem - Packet Mode

    4. Using the FireLine Modem – Packet Mode This section describes the operation of the when it is in the Packet Mode of operation. Packet Mode is the factory-default operating mode. It is the easiest and most reliable mode of operation for a modem. Note: The configuration of the FireLine is done when the FireLine is in the “Command Mode”.

  • Page 13: Setup

    thus can operate with weaker signals and have longer communication range. Figure 1 (Packet Mode of Operation) For operation of the modem in the streaming data, non-packetized mode, see the section Streaming Mode on page 21. The Packet or Streaming operation is configured using the ATMT command, with Packet Mode being the factory default.

  • Page 14: Selecting Channels

    default radio channel using the factory defaults. In general, the parameters you may want to modify will be: ATFX Frequency for this channel. Set to your frequency. ATMT 0 0 for normal Packetized operation. Default mode. ATAK 0 for no ARQ, 1 if this unit sends ACKs. Default is no ARQ. ATRB Set the number of retries if ARQ is used (x).

  • Page 15: Flow Control

    baud for narrow-band channels, and 9600 baud for wide-band, although faster or slower rates may be used. In Packet Mode, selection of the serial port baud-rate is important. As shown in Figure 1 (Packet Mode of Operation) above, if the serial port baud-rate is the same as the over-the-air baud rate and the packets are short, the channel utilization is only about 50%.

  • Page 16: Data Reception

    ATBC 0 disables BCL, and thus the modem will transmit whenever it has data to send out. The factory-default is BCL disabled. Use caution when enabling it, as a CW interferer, PC with poor shielding, or some other source of RF can stop the modem from transmitting.

  • Page 17: Hexadecimal Numbers

    the FireLine modem. The default Address Mask is FFFF, which means all digits will be used. Hexadecimal Numbers For those not familiar with hexadecimal numbers, a hexadecimal digit represents a 4-bit binary pattern. There are 16 possible values (0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,and F). These 16 values represent 4 bits of information, thus 4 hexadecimal digits can represent 16 bits of information.

  • Page 18: The Address Mask

    modem with an ID that matches the two non-FF digits will receive the data. For example, sending data with a destination ID of 12FF will be received by any modem with a unit ID 1200 through 12FF. Sending data with a destination ID of FF34 will be received by any modem with a unit ID of 0034 through FF34.

  • Page 19: Addressing Examples

    One effect of this is that an address mask of 0000 will cause the FireLine modem to received any data from any unit that transmits. The Destination Address will effectively be ignored if the mask is set to 0000. Addressing Examples: Example 1 (default configuration) Sending Destination Address = 1234 Receiving Unit Address = 1234...
  • Page 20 If received data has an error in it or if the receiving modem does not get the data due to interference, the receiving modem does not send the ACK back, and the sending station will automatically re-send the data. There are two aspects to configuring ARQ: Enable the ARQ mode in the modem to allow it to transmit ACKs (ATAK 1 command).

  • Page 21: Using The Fireline Modem - Streaming Mode

    Using the FireLine Modem – Streaming Mode This section describes the operation of the Streaming Mode of operation. This mode is selected with the command ATMT 2. 4.7. Streaming Mode Operation In Streaming Mode, radio transmissions will begin whenever data enters the mode, and the transmission will continue as long as there is data to send.

  • Page 22: Bit Errors

    and send it out over the air in the same order as it enters the modem. When the buffer is empty and there is no more data coming into the modem, it will automatically de-key the radio and go back into the receive mode. The FireLine modem will send a hidden end-of-message signal to the receiving modem, thus avoiding any extra data bytes “dribble bytes”...

  • Page 23: Serial Data Flow Control

    4.11. Serial Data Flow Control If large amounts of data will be sent with the FireLine, and the serial port is operated at a faster data rate than the over-the-air rate, it may be possible to overflow the internal data buffer. To ensure the transmit buffer does not overflow, enable and use hardware flow control.

  • Page 24: Installation

    5. Installation Secure the FireLine modem using the four mounting holes on the side flanges of the unit. Connect a DC power source to the DC IN connection on the front of the modem. Use the supplied cable, and connect the RED wire to +, and the black wire to –...

  • Page 25: User Serial Port Commands

    6. User Serial Port Commands 6.1. Overview The asynchronous serial portion the RF modem is used to send and receive data over the air, as well as to configure the RF modem. In normal operation, the user sends data into the TxD pin of the user port, and this data is transmitted over the air.

  • Page 26: Reading A Parameter

    Once a Parameter is changed, the modem will begin using the new parameter as soon as it exits the Command Mode and returns to its normal operation mode. If the new parameter was saved to non-volatile memory using the ATSV command, then the new parameter will be used as well the next time the FireLine modem is powered on.

  • Page 27: Exiting The Command Mode

    The default setting that the modem will revert to when the CONFIG button is pressed are: 1. Serial port 9600 baud, 8 data bits 1 stop, no parity 2. ATCT setting set to 60000 (60 second time-out) Even though the serial baud rate reverts to 9600 baud when the CONFIG button is pressed, it will revert back to the ATBD setting programmed into the modem once the Command Mode is exited.

  • Page 28: Command Mode Commands

    Range: 1 - 6 same vicinity. Enable/Disable the LEDs – 0 = LEDs always off. This 0 or 1 reduces some power consumption. 1 = LED operate normally. Company Confidential Raveon Technologies Corp.
  • Page 29 Streaming data mode only. 1-RF required. 0=ignore rf energy when receiving. Transmit Time-Out-Timer – Sets the transmitter time-out- Range: 0-999 timer in seconds. This is a fail-safe timer for improper (seconds) configuration or operation of the modem. In normal Company Confidential Raveon Technologies Corp.
  • Page 30 CONFIG mode. ** indicates values that are calibrated in the factory and are unit-specific. If the “Radio Type” is changed, these will need to be re-calibrated. Company Confidential Raveon Technologies Corp.

  • Page 31: Setting The Over-The-Air Data Rate

    0 = Go back to normal mode. Stops the test. 1 = Random data transmit. 2 = Hop up/down one channel 3 = Force PLL to fast lock mode 4 = Transmit all 0s 5 = Transmit all 1s Company Confidential Raveon Technologies Corp.
  • Page 32 Begin counting and displaying the packet counters every minute ATPE 1 Reset the packet counters back to zero ATPE 2 Stop counting and displaying packet counters Upon power up, the packet counter feature is always disabled. Company Confidential Raveon Technologies Corp.

  • Page 33: Fireline Diagnostic Provisions

    Run Time – Returns the amount of time that the modem has been display powered up and running. screen Run time Statistic Read – Returns numeric values, comma separated, of all ST10 display statistics as described in the ST command. screen Company Confidential Raveon Technologies Corp.

  • Page 34: Atst Command

    (speed of the main Operating System, in Hz. Typical 8000-30000. ) OS Speed (the DAC value that biases the VCO in the radio. 0-1024 = 0-3.3V) VCO Bias hhhh (hexadecimal representation of an internal configuration word.) Config Company Confidential Raveon Technologies Corp.

  • Page 35: Atst3 Command

    ATDT The ID the modem is programmed to send data to. ATVB DC voltage, in millivolts of the DC input to the modem. UPTIME Number of seconds since this modem has turned on. OSERR The number of Operatin System Errors. Normally this is 0. Company Confidential Raveon Technologies Corp.
  • Page 36 ATMA command. This allows the system to be configured in a way the normal modem communications take place between the modems, and the status information only is delivered to modems that need to receive it. Company Confidential Raveon Technologies Corp.

  • Page 37: Tune-Up And Alignment

    1. Key the transmitter with CW output using this command: ATTD 7 2. The modem will now put out CW on the center of the channel. 3. Read the frequency offset with the ATR8 command. Company Confidential Raveon Technologies Corp.

  • Page 38: Tx Deviation

    2 volts DC. 4. There is no calibration required in this step, but if the specification is not meet, the “quad” coil in the radio may need adjustment to pull the DC level into spec. Company Confidential Raveon Technologies Corp.

  • Page 39: Rx Carrier Detect

    This product is used on frequencies governed by the FCC rules part 95, Subpart J, (Multiple Use Radio Service operation). The MURS channels are: 151.820 MHz 151.880 MHz 151.940 MHz 154.570 MHz 154.600 MHz 151.820 MHz Company Confidential Raveon Technologies Corp.

  • Page 40: Skyline Compatibility

    The FireLine RF modem has built-in compatibility with a radio modem made by Sonik Technologies, Vytek Wireless, and Cal Amp called the SkyLine. In most applications, Raveon’s FireLine modem can communicate with SkyLine modems, provided the FireLine is properly configured. There are two versions of the Skyline, a wide-band version running at 9600 bps over the air, and a narrow- band version running at 5142bps over the air.
  • Page 41 ATR0 180 Set the peak deviation to +/-3.0kHz. This setting will probably have to adjusted to achieve the exact deviation. ATR1 1 Use data CD ATR5 9 SkyLine wide-band modems required 9 bytes of preamble. Company Confidential Raveon Technologies Corp.

  • Page 42: Antenna Information

    Gain antennas always have “patterns” of gain. It is important you understand the pattern of your antenna. Omni directional antennas will receive from almost any angle, 360 degrees around them. Omni Antenna Directional Antenna Company Confidential Raveon Technologies Corp.
  • Page 43 Company Confidential Raveon Technologies Corp.

  • Page 44: Internal Radio Connection

    RSSI input from radio. Optional input signal. Receiver discriminator input from radio. On-board AGC for signals with amplitude of .1V-2Vp-p and a DC bias of 1V-2.5V. Modulation balance output. Adjustable DC voltage, set with the ATR9 command. Company Confidential Raveon Technologies Corp.

  • Page 45: Appendix A. Serial Port Hardware

    FireLine can transmit over the air, it will negate the signal on this pin. The CTS may be asserted when the serial-port data rate is greater to or equal to the over- the-air rate. For example, if the over-the-air data rate is set to 2400 baud, and Company Confidential Raveon Technologies Corp.
  • Page 46 DTR line is a logic 0, the FireLine will be operating normally. With DTR enabled, anytime the DTR line is a logic 1, the FireLine will go into a SLEEP mode, drawing much less DC power. Company Confidential Raveon Technologies Corp.

  • Page 47: Null Modem Without Handshaking

    CTS line to make this possible. The only type of communication which is allowed on such a null modem line is data-only traffic on the cross connected Rx/Tx lines. Company Confidential Raveon Technologies Corp.

  • Page 48: Null Modem With Full Handshaking

    Both the RTS and DTR outputs can be used to send flow control information to the other device. This makes it possible to achieve high communication speeds with this type of null modem cable, provided that the system has been designed for it. Company Confidential Raveon Technologies Corp.

  • Page 49: Troubleshooting

    This will force the modem into the Command Mode, as well as set the serial port to 9600 baud, 8 data bits, one stop, and no parity. If the baud-rate was OK, verify the AT, BT and CT times, that they are long enough for you to enter the +++ string. Company Confidential Raveon Technologies Corp.

  • Page 50: Symptom: Modem Appears Dead

    Verify the power is on. When the modem has good DC power, the PWR LED will blink once per second. If it is not blinking, either the modem does not have power, the modem is broken, or the LEDs have been disabled via the ATL0 command. Company Confidential Raveon Technologies Corp.

  • Page 51: Mechanical

    14. Mechanical Company Confidential Raveon Technologies Corp.

  • Page 52: Limited One Year Warranty

    If within one year from date of purchase, this product fails due to a defect in material or workmanship, Raveon Technologies, Incorporated will repair or replace it, at Raveon’s sole discretion. This warranty is extended to the original consumer purchaser only and is not transferable.

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