Raveon RV-M50 User manual

RV-M50
M50 Daisy Wireless Modem
Technical Manual
Revision G1 (November 2019)
Raveon Technologies Corporation
www.raveon.com | www.ravtrack.com

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Table of Contents
1. General Information .............................................................................................................................4
1.1. Congratulations............................................................................................................................. 4
1.2. Safety / Warning Information....................................................................................................... 4
Blasting Caps and Blasting Areas .......................................................................................... 4
Potentially Explosive Atmospheres.......................................................................................4
1.3. Safety Training Information ..........................................................................................................4
2. Overview ...............................................................................................................................................5
2.1. Input and Output .......................................................................................................................... 5
Universal Wireless OEM Radio Connector............................................................................5
LED ........................................................................................................................................ 6
RF Antenna Connection ........................................................................................................6
GPS Antenna Connection...................................................................................................... 6
3. Configuring the Daisy ISM..................................................................................................................... 6
3.1. Overview .......................................................................................................................................6
3.2. Command Mode ........................................................................................................................... 7
Command Mode Encoding and Line Format ........................................................................7
Entering Command Mode..................................................................................................... 7
3.3. Reading a Parameter.....................................................................................................................7
Exiting Command Mode........................................................................................................8
3.4. Using Commands .......................................................................................................................... 8
3.5. Configuration Commands .............................................................................................................8
Standard Commands.............................................................................................................8
Radio Frequency related Commands.................................................................................. 10
3.6. ptr_COM1 Factory Commands ...................................................................................................10
3.7. Factory Default Settings.............................................................................................................. 10
Default Factory Settings......................................................................................................10
4. Operational Modes and Configuration ...............................................................................................11
4.1. LoRa Lite Pier to Pier Configuration:...........................................................................................11
Channel Configuration and Virtual Channelization.............................................................11

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General Configuration.........................................................................................................11
4.2. Channel Center Frequency..........................................................................................................12
4.3. Channel Bandwidth and Transmit Power ................................................................................... 12
Channel Data Rate...............................................................................................................12
Channel Occupancy.............................................................................................................12
4.4. Data Transmission....................................................................................................................... 13
4.5. Data Reception............................................................................................................................ 13
Serial Port Data ...................................................................................................................13
4.6. Device Addressing.......................................................................................................................13
ID Addressing Basics............................................................................................................13
Addressing Examples: .........................................................................................................14
5. Troubleshooting..................................................................................................................................15
5.1. Symptom: Unit will not receive..................................................................................................15
5.2. Symptom: Receive light blinks, but no data is received ............................................................15
5.3. Symptom: Long delay before transmitting ................................................................................15
5.4. Symptom: Cannot enter Command Mode................................................................................. 15
6. Mechanical.......................................................................................................................................... 16
7. NOTICE ................................................................................................................................................16
7.1. Safety Training information ........................................................................................................16
8. FCC Compliance Information ..............................................................................................................16

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1. General Information
1.1. Congratulations
Congratulations on your purchase of an RV-M50 Daisy Radio. Please take a few minutes to read this
manual carefully. The information presented here will allow you to derive maximum performance from
your radio modem base station. After reading it, keep the manual handy for quick reference, in case
questions arise later on.
1.2. Safety / Warning Information
Blasting Caps and Blasting Areas
To avoid possible interference with blasting operations, turn off this device when you are near electrical
blasting caps, in a blasting area, or in areas posted: “Turn off two-way radio.” Obey all signs and
instructions.
Potentially Explosive Atmospheres
Turn off your radio prior to entering any area with a potentially explosive atmosphere. Do not install this
product for use in areas with potentially explosive atmospheres. Sparks in a potentially explosive
atmosphere can cause an explosion or fire resulting in bodily injury or even death.
Note: The areas with potentially explosive atmospheres referred to above include fueling areas such as
below decks on boats, fuel or chemical transfer or storage facilities, areas where the air contains
chemicals or particles, such as grain, dust or metal powders, and any other area where you would
normally be advised to turn off your vehicle engine. Areas with potentially explosive atmospheres are
often but not always posted.
1.3. Safety Training Information
This radio is restricted to occupational use. Work related operations are permitted only when the radio
operator has the knowledge to control the exposure conditions of its passengers and bystanders by
maintaining the minimum separation distance. Failure to observe these restrictions may result in
exceeding the regulatory exposure limits.

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2. Overview
The Daisy Wireless Modem is a secure, high-performance, long-
range wireless access card and GPS transponder. It is FCC approved
as a Direct Sequence Spread Spectrum (DSSS) data radio modem.
Two data interfaces are available, transparent-link mode and
Raveon’s WMX Wireless Packet Format. Modem operation is
virtually transparent to the user and the configuration of the
modem is done easily through the user serial port.
As a GPS transponder, configuration is as simple as setting a report rate. Many options are available to
create a customized GPS transponder by adjusting reporting rules and detail levels of GPS reports.
For security, AES-128 encryption is available as an option to order with the radio.
While easy to use out-of-the-box, the Daisy Modem’s programmability makes it extremely versatile.
Most parameters may be reconfigured to optimize for specialized operations, extended range or higher
data throughput.
2.1. Input and Output
The RV-M50 uses the Universal Wireless OEM Radio Connector (UWORC) which is the same as every
connector on every Raveon OEM data radio modem.
Universal Wireless OEM Radio Connector
Raveon utilizes a universal connector configuration on many of its radio modem modules, so the Z50 is
plug-in compatible with dozens of other radio modems. The UWRC connector pint-out is as shown
below. See Application Note AN224 for more information about the UWORC interface.
20- Pi n U W O RC I n te r f a ce P o rt
Pin #
Function
Description
1
GND
Ground
2
VCC
DC Input
3
CD
Carrier Detect Out. DCD
4
TX On
Pin is High when module is transmitting. Low when off,
receiving, or sleeping.
5
Data In (TXD)
Serial UART transmit data input.
6
Data Out (RXD)
Serial UART receive data output.
7
Enable
Low to shut down the module. High to enable it.
8
Sleep
CPU Sleep input. Put in low-power fast-startup mode.
9
CTS
Clear to send output. Indicates state of internal buffers.
10
RTS
RTS input for serial flow control.
11
NC
No Connection
12
VDIG
3.3V output. Limit current draw on this power source to 50mA.
13
IOA
IO port A, USB DP
14
IOB
IO port B, USB port, DM
15
IOC
IO port C
16
STAT1
Status IO 1
17
NC
No Connection
18
STAT2
Status LED out

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19
GND
System Ground
20
V-BACK
Optional Backup Battery In
The primary connector is fully pin-for-pin compatible with M8 UHF, VHF, 220MHZ modems. V50 ISM
band radio modems.
LED
By default, the LED will indicate the following:
Green: Radio has received a packet
Red: Radio is transmitting a packet
Flashing Orange: GPS is locking (flashing will cease when GPS has locked)
Many commands modify the operation of the LED, including disabling it entirely.
RF Antenna Connection
The RF Antenna Connection is an MMCX connector.
GPS Antenna Connection
If GPS feature is installed, the GPS Antenna Connection is a u.FL (sometimes known as IPEX)
3. Configuring the Daisy Radio
3.1. Overview
The UART serial port on the unit is used to send and receive data over the air, as well as to configure the
RF modem. In standard transparent-link operation, the user sends serial data into the TXD pin of the
user port, and this data is transmitted over the air. Received data from another RF modem is output to
the user via the RXD pin of the user port. This is the default operating condition of the RF modem. No
special characters, hardware control lines, or timing is required to operate the Daisy Modem.
By default, the serial port is set to: 38400 baud, 8 data bits, 1 stop bit, no parity bit.
If the M50 is configured as a GPS transponder, the serial port need not be connected to anything. The
internal GPS will initiate the transmissions of position and status. The serial port may be connected to
receive other GPS reports or send and receive additional data.

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There is also a Command Mode used to program and configure the modem. In the Command Mode, the
modem accepts commands via the serial port TXD pin. The commands can be used to change certain
internal parameters of the modem as well as to read-out the current configuration and diagnostic
statistics.
The modem also supports Raveon’s Wireless Modem Exchange (WMX) protocol for commanding and
messaging. WMX is ideal for fully automated control and integration. For more information, see the
WMX Protocol Description document and the Raveon Tech Note “Rapid Radio Configuration using
WMX”.
3.2. Command Mode
Command Mode is used to program and configure the modem. This mode is separate from data mode
and will not transmit received data over-the-air, instead executing commands detailed in this manual.
Command Mode Encoding and Line Format
In Command Mode, all characters are ASCII encoded. All output lines will use the standard network line
ending, CR+LF (ASCII 0x0D followed by ASCII 0x0A).
Inputs lines may use either CR, LF or CR+LF line endings.
Entering Command Mode
The modem may be put into a Command Mode, by entering a sequence of three plus characters (+++),
called the Entry Sequence.To keep the modem from unintentionally entering the Command Mode
because of the Entry Sequence occurring in a stream of data entering the modem, there must be a
pause in the data stream before the Entry Sequence as well as a pause afterwards. If either pause is
missing, the modem will not enter the command mode. The pause length is configurable, by default it is
500ms.
When the modem first enters the Command Mode, it will output the base model number along with the
OK sequence:
RV-M50
OK
Once in command mode, the instructions in the following sections can be followed to continue radio
configuration.
3.3. Reading a Parameter
To read the value of a particular setting, issue the command, with no parameter. The modem will return
the value followed by an “OK”. The modem’s OK response is:
The value in ASCII decimal format.
A <CR> <LF> (<CD> = ASCII 0D, <LF> = ASCII 0A).
An “O”, “K”, <CR>, and <LF> sequence.

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For example, if the user enters the command to read the radios modem address and its address was
1234, the user would issue the following command:
MYID<cr>
and the modem will respond with:
1234 <CR> <LF>OK <CR> <LF>
Exiting Command Mode
To exit command mode and return to data mode, the command EXIT may be used.
Alternatively, command mode will timeout after a configurable amount of time, by default 60 seconds.
3.4. Using Commands
To execute a command, send the command name and any parameters separated by spaces, followed by
a line ending. For example, to use the ATDT command to set the destination address to 1234, send:
ATDT 1234<LF>
Some commands may output result information on lines following the command, but the output will
always terminate with either the OK sequence (introduced in the previous section) or the ERROR
sequence (ERROR<CR><LF>). Always put a space after the command code, before entering a parameter.
Some commands may have different results depending on the number of parameters. In general, a
command that sets a parameter(s) can read back its values by issuing the command with no parameters.
To get on-line help with a command, enter the command with a question mark at the end.
To see a list of all commands, use the HELP command.
3.5. Configuration Commands
Standard Commands
The following commands are standard Raveon commands implemented by the radio modem.
Command
Command Description
Parameters
Factory
Default
ATAT
Silence AFTER Sequence - Sets period of silence after the command
sequence characters in mS.
Range:10 –1000
(mS)
500
ATBT
Silence BEFORE Sequence –Sets period of silence before the
command sequence character in mS.
Range: 0-1000
mS
500
ATBD
Baud Rate –Sets serial com port baud rate (bps).
If a PC’s serial baud rate is set higher than the fixed over-the-air baud
rate of the module, hardware handshaking may be required. 0 = 1200
1=38400 1=2400 2=4800 3=9600 4=19200 5=38400
6=57600 7=115200
0 –7
5

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ATCT
Command Time Out –If no valid commands have been received via
the serial port within this time period (in milliseconds), modem returns
to normal operation mode from Command mode.
Range: 100-
120000mS
60000
ATHW
Returns the hardware PCB number
Range: 0-1000
mS
N/A
ATE
Set/Show Echo –Turn Echo on or off
0: off
1: on
1
ATL
Enable/Disable the LEDs –1 = LEDs always off. This reduces some
power consumption. 0 = LED operate normally.
0 or 1
0
ATJF
Read/set the CTS threshold –Set the serial buffer
threshold where the CTS line is negated. By default the
ATJF level is at 80% of the internal buffer size.
4000
ATMK
Address Mask –Configures local and global address space. Each
digit may be a 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,or F. In most
applications, this is kept at FFFF.
Range: 0000 -
FFFF
FFFF
ATLA
Alternate Listen Address–Set an alternate listen address
FFFF
ATMY
Unit Address –Configures the individual; address for this unit. Each
digit may be a 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,or F. Note: FF is
interpreted as a group. See addressing section.
Range: 0000 -
FFFF
1234
ATNS
Stop Bits –Set/read the number of stop bits for serial communication
1,2
1
ATSF
ATSF X Over-The-Air spreading Factor. X is the code for the
spreading factor. In 500kHz channel, 7 is 21.87kbps. See section 4
for more information.
See section 4
10
ATR3
Serial Port Time Out –The time in milliseconds for the serial port to
time out. When data is entering the serial port, and this amount of time
passes with no more data, the modem will begin to transmit the data
over the air.
Range: 1 –999
(ms)
20
ATSL
Serial Number –Reads and returns a unique serial number for this
unit.
Read Only
1 - 999999999
unique
ATSH
Show –Display the configuration of the modem. This will return a
page of ASCII characters, showing the main configuration parameters.
none
None
ATIO
ATIO X IO Configuration –Set the IO mode X. 0: RS232 1: MIMIC
5:OEM board, TTL IO, 8: Tech Series Enclosure
0-8
5
ATVR
Firmware Version –Returns firmware version currently loaded on the
module.
Read Only, 3
characters
none
AT&F
Restore Factory –Restore to the factory defaults
None
SHOW
Show/display an overview of the radio’s configuration.
None
-
MODEL
Read Model number –Read the model number.
None
RV-M50
WMX
WMX –Enable/disable WMX commands
0: off
1: on
0
TOID
Set Destination Address. Set ID of the destination radio
0000-FFFF
1234
CONFIG
Show Configuration. Display the settings of every parameter in the
unit. If the parameter is 1, then the help text is not displayed, If the
parameter is 2, the configuration is output in strictly the format used to
program another unit.
None, 1, 2
-

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HELP
Help Menu
-
-
When configuration s are changed, it is a good idea to re-boot the radio by powering off and back on.
Radio Frequency related Commands
The following commands are commands to set, manage, and read RF technology in this product.
Command
Command Description
Parameters
Factory
Default
ATHP
Channel Number –Select channel number to configure
1-5
1
ATBW
Set/Read Channel Bandwidth in kHz
125,250,500 (kHz)
500 (kHz)
ATF
Display frequencies –Display all of the frequencies programmed into
all of the channel memories.
N/A
ATFX
Frequency –sets both Tx and Rx frequency
See section 3
ATFEC
Error Correction Coding Rate –For forward error correction, extra
bits are added to data to correct bit errors. 0=non, 1=4/5, 2=4/6, 3=4/7,
4=4/8.
0-4
1
3.6. ptr_COM1 Factory Commands
Commands used for calibration or factory testing. No need to work with these when setting up this
radio modem.
ATMP
Model Protocol –The over-the-air protocol to use.
13 = Lora Pier-Pier
13
3.7. Factory Default Settings
Default Factory Settings
Serial port ................................................................................38400 baud, N/8/1
ID (ATMY) ................................................................................1234
TOID (TOID) .............................................................................1234
ISM band 902-928 (Radio Type 0)
Channel
Frequency
MHz
Bandwidth
Spreading
Factor
Symbol
Rate
1
903.5
500kHz
10
3.90 kbps