Table of Contents
Related Manuals for Raveon RV-M8R
Summary of Contents for Raveon RV-M8R
- Page 1 RV-M8S / RV-M8R Da ta /T ra ckin g / Pa ging Ra dio Modem Te c hn ical Ma nu al Version D1 June 2019 Raveon Technologies Corporation 2320 Cousteau Court Vista, CA 92081 www.raveon.com Company Confidential Raveon Technologies Corp.
-
Page 2: Table Of Contents
Broadcast Transmissions ........................28 The Address Mask ..........................28 Addressing Examples: ......................... 29 8.5. Store-and-Forward Repeating ..................... 30 Automatic Repeater Configuration ....................... 30 Manual Configuration of the Repeat Feature ..................30 Debug Related Commands ................. 41 Company Confidential Raveon Technologies Corp. - Page 3 Symptom: Receive light blinks, but no data is received ..............47 Symptom: Long delay before transmitting ................... 48 Symptom: Cannot enter Command Mode ................... 48 Symptom: Modem appears dead......................48 Symptom: Repeater will not repeat..................... 48 Mechanical ....................49 Company Confidential Raveon Technologies Corp.
-
Page 4: General Information About The Rv-M8
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 Blasting Caps and Blasting Areas... -
Page 5: 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 6 The STAT2 pin is used to trigger the Boot Loader. See application note AN186 for details on how to boat load new firmware into the M8S. Company Confidential Raveon Technologies Corp.
-
Page 7: 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 8: 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 9: User Serial Port Commands
(receive only version) out of its serial port, and then an “OK” sequence. The “OK” sequence is a sequence of 4 characters: An “O”, “K”, <CR>, and <LF> characters (<CR> = ASCII 0D, <LF> = ASCII 0A) Company Confidential Raveon Technologies Corp. -
Page 10: Setting A Parameter
M8S modem to assist in this case. This CONFIG button may be pressed at any time, and forces the modem into a known operational state. The CONFIG button is located inside the modem. Remove the rear cover, Company Confidential Raveon Technologies Corp. -
Page 11: 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 12: Command Mode Commands
Command mode. If the CONFIG button inside the M8S is pressed, this parameter will be automatically set to 60000. Echo – Character echo set on (E1) or off (E0). This applies to Range: 0 , 1 1 (echo) the Command Mode only. Company Confidential Raveon Technologies Corp. - Page 13 4 = Data Framing Select CD pin output signal – CD may be RF carrier detect, or 3= Always negate CD ATR1 modem data detect. 2 = Always assert CD 1 = Data CD 0 = RF CD Company Confidential Raveon Technologies Corp.
- Page 14 Y is number of seconds between transmissions when the input is high. MODEL None M8S or M8R Read Model number. Read the model number of the unit. QSIZE None Read the number of queued WMX frames in the WMX queue. Company Confidential Raveon Technologies Corp.
-
Page 15: Data Modem Mode Related Commands
RF power level. Symbol Peak Deviation – Set the peak FM deviation of the ATR0 120** Range: -1000 – 1000 transmit symbols. Note: This can be a negative number to invert the modulation. Company Confidential Raveon Technologies Corp. -
Page 16: Paging Receiver Related Commands
The ATMT and ATMA commands configure the M8S to operate in the paging decoder mode. Data Format. 0=Numeric, 1= Alpha-numeric, 2=tone, 0, 1, 2, 3, or 4 3=voice, 4=auto detect based on function bits. Company Confidential Raveon Technologies Corp. -
Page 17: Factory Default Settings
Address Mask (ATMK) ........FFFF Frequencies Ch 1 ....462.2125 MHz RV-M8R-xx (Receive Only) For the UHF M8R receiver, model RV-M8R-xx, the main factory defaults are: General Settings Primary Protocol: (ATMT 0) ....... Packet Data Alternate Protocol: (ATMA 3) ......POCSAG Channel number selected ......... - Page 18 Data Modem Settings: Over-the-air data modem baud rate: ....4800 baud, 2-level Serial port ............9600baud, N/8/1 Hardware flow control ........Off ID (ATMY) ............1234 Address Mask (ATMK) ........FFFF Frequencies Ch 1 ....462.2125 MHz Company Confidential Raveon Technologies Corp.
-
Page 19: Using The M8S In Paging Mode
Protocol”, that may be selected using the input pin 15. 1. Configured by Command. With ATMA set to -1 to disable the alternate protocol, the ATMT command will select the current operating mode, either data modem or paging. ATMT 0 selects data modem Company Confidential Raveon Technologies Corp. -
Page 20: Setting Cap Codes
When the pager receives a numeric page, it outputs the numeric digits via its RXD output pin on the I/o connector. The baud rate of the serial port is set with the ATBD command. The outputted characters are ACSII representations of the BCD numeric digits. Company Confidential Raveon Technologies Corp. -
Page 21: Alphanumeric Messages
7 bits. Characters are split between codewords and the last codeword is filled with unprintable characters such as end of message , end of text, or null. Null is the only character which can be Company Confidential Raveon Technologies Corp. - Page 22 The WMX protocol may be enabled with the modem in the POCSAG mode. This allows the user to easily read the ID that was decoded by the POCSAG receiver. Details about WMX and code examples are on the Raveon website at www.raveon.com/wmx...
-
Page 23: 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 24: 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 25: Programming Channels And Frequencies
ATFX 450100000. You must enter all of the zeros if you enter the frequency in hertz. 3. Review the frequency setting with the ATFT, ATFR, or ATFX command. To see a list of all of the channels , enter ATF. Company Confidential Raveon Technologies Corp. -
Page 26: Data Transmission
Incorporating addressing in the modem allows multiple radio systems on the same frequency to co-exist, and not interfere with each other. Also, some user application cannot tolerate receiving data that was not intended for it, and by Company Confidential Raveon Technologies Corp. -
Page 27: Hexadecimal Numbers
1234, and thus, all modems can communicate with all other modems, using the address 1234. The advantage of using this system-wide address, is that if there are other M8S modems on the channel, but in some other system, they probably Company Confidential Raveon Technologies Corp. -
Page 28: 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 29: 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 30: 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 31 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 32 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 33 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 34 9.2. Baud Rate Selection In Streaming Mode, the user data may still enter the modem at any baud rate, as set with the ATBD x command. The modem will buffer the data and send it out Company Confidential Raveon Technologies Corp.
- Page 35 RF carrier detect, us the ATRF 0 command (Factory default). When ATRF is 0, the modem will be more sensitive, and be able to receive weak signals, but there is more likely to be many bit errors when the signals are weak. Company Confidential Raveon Technologies Corp.
- Page 36 The default over-the-air data rate for M8 radio modems is 4800 baud for narrow-band versions, and 9600 baud for wide-band versions. These are the optimal data rates for radio modems on wide and narrow radio channels. Company Confidential Raveon Technologies Corp.
- Page 37 For high-speed operation, set R2 to 5 (9600 baud). For best range (longest distance), set R2 to 1 (1200 baud) Other data rates of 0(800bps), 2(2400bps), 3(4800bps), 7(9600bps), and 6(19,200bps) will work, but have a less optimal bit-error-rate vs. receive sensitivity. Company Confidential Raveon Technologies Corp.
- Page 38 This command can be issued to the device in the command mode or using WMX messages to the device. Even in the LPM, the RV-M8S will process commands and WMX messages. Company Confidential Raveon Technologies Corp.
- Page 39 Note, the analog input range of the M8S is 0-3.3V. Ideally bias the DC input to 1.66V or AC couple it with a capacitor and add two bias resistor to ground and 3.3V. To have the M8S determine the DC bias input automatically Company Confidential Raveon Technologies Corp.
- Page 40 FM carrier beyond the preset limit with the input TX audio exceeds a threshold that would have cause the M8S or over-deviate. Raveon suggests the AFDC, AFLVL, and AFLIM always be adjusted and calibrated by trained radio technicians familiar with setting FM deviation gain and FM limiters.
-
Page 41: 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 42: M8S Diagnostic Provisions
Date and time firmware was compiled. Run Time – Returns the amount of time that the modem has been Run time display STAT 4 powered up and running. screen STAT 9 Reset all statistics counters Company Confidential Raveon Technologies Corp. -
Page 43: 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 44: Center Frequency
RF, using an internal signal called RSSI (Receive Signal Strength Indication). The RSSI signal is an analog signal representing the strength of the RF carrier. It is compared with a pre-set value, and if it is above Company Confidential Raveon Technologies Corp. - Page 45 The Pre-Data and Post-Data time can be set from 0-254ms, as indicated in the diagram below. The CD signal will normally stay low (near 0 volts), and when the Output Data Framing takes place, it will go high (about 3V). Company Confidential Raveon Technologies Corp.
- Page 46 If Output Data Framing is enabled, any other Carrier Detect and flow control output configuration is ignored. Company Confidential Raveon Technologies Corp.
-
Page 47: Troubleshooting
Alternately, remove the rear cover of the modem, and press the CONFIG button. This will force the modem into the Command Mode, as well as set the serial port to 9600 Company Confidential Raveon Technologies Corp. -
Page 48: Symptom: Long Delay Before Transmitting
If other units in the system have the same ID as the repeater, the repeater will not repeat them because it thinks the it originated the transmission. Set the MTID of the repeater to a unique ID number. Company Confidential Raveon Technologies Corp. -
Page 49: Mechanical
16. Mechanical A drawing is shown below. Company Confidential Raveon Technologies Corp. - Page 50 Limited One Year Warranty If within 12 months from date of purchase, this Product fails conforms to Raveon Technologies Corporation’s (the Company) published specifications for the model purchased due to a defect in material or workmanship, Raveon Technologies Corporation will repair or replace it, at Raveon’s sole discretion.
- Page 51 Warranty service is available by mailing postage prepaid to: Raveon Technologies Corporation 2320 Cousteau Court Vista, CA 92081 - USA To obtain warranty service, include a copy of the original sales receipt or invoice showing the date, location, and price of purchase. Include a written description of the problem with the product, a phone number and name of person who may be contacted regarding the problem, and the address to where the product should be returned.