skip to Main Content

 TCP/IP radio modem on UHF , VHF, or ISM Band

Raveon’s RV-M55-E Ethernet interface data radio designed for telemetry, SCADA, AVL, wireless data, mobile-data and remote control applications.
Designed by Raveon for long-range reliable communication using high-performance data radio modules within the product.
The M55 can be a base station to send data over the air from an Ethernet interface. It also has an RS-485 interface on it to send data to the Ethernet, or to receive serial data from the Ethernet interface.

Is has multiple TCP/IP ports, so multiple computers can transmit and receive data using one M55 Data Radio Modem.
It is great to be able to receive data and send it out to multiple computers.

This RV-M55-E version is perfect for the SCADA industry and to communicate to the Remote Autonomous Zone Nodes RAZN.

There are many data radio modems available for use in this RV-N55-E  Ethernet Interface for Data Radios.
The miniature low-cost Daisy Radios are available in narrow-band channels (RV-M6) or license-free ISM band (RV-M50).

The Ethernet connection can connect this to your network or your server, or to an IoT cloud server if you want it to.

You can acquire this with  an RF modems inside the RV-M55-E, so this can mesh or Daisy Chain your network with long range wireless connections.

The RS-485 interface on this product can connect to SCADA RTUs to communicate via Ethernet or via wireless data modems.

The long range data radios in the RV-M55-E can communicate, monitor, and control thousands of local things, and can be passed away many miles (2-50 miles).

Interfaces to the RV-M55-E Ethernet Radio.


RS-585 Serial port interface to configure the RV-M55-E.  USB can be used also.
Data from the radio or from the Ethernet can communicate with the RS-485 port.

Ethernet port Modular Connectors / Ethernet Connectors for 10 Mbps or the Fast Ethernet speed of 100 Mbps. data communications.
TCP/IP protocol is used with multiple ports to link to the data radio inside the RV-M55-E.

DC Power Input interface to power the RV-M55-E.
7V – 30V DC input is OK. 12 is recommended using.  Power supply with 5.5 x 11 mm Connector.
Raveon has AC version 12V  PS-55-A supply to use if you want.


If you just want cable with a connector, the  items is available for DC power input to the RV-M55-E

USB Connects to RS-485

Raveon’s  RG-H4U USB interface to connect to the RS-485 Interface,.
The RG-H4U version has a cable and 5-pin connector also for USB communications.

Raveon also supplies a version with a 12″ cable and 5 pin interface to the M55-E Data radio RS-485.
Part number RG-H4U-12

RS-485 Interface  Connector  Raveon Part#: 1J821-5

A 5 pin connector that can plug into the RS-485 interface on the product.

A 5 pin RS-485 Pluggable Terminal Block with 5 Pos.




Internal Features That can be used.

These features can be read via the TCP/IP Ethernet interface or over the air via the data radio.

A. Internal temperature sensor.
B. Accelerometer to monitor product angle and vibration.
C. RS-485 serial interface can be communicated via Ethernet port.
D. The data radio modems can do store-forward repeating.
E. Many RTU IO options available in the other Ethernet RAZN products.
F. AES128 encryption to secure data communications.
G. Data Logger inside using EEPROM to store historical event information..
H. Commands to configure the Ethernet device and the internal Data Radio.


M55 Applications and Markets:

RV-M55-E Ethernet Wireless Data

Ethernet Link radio can link a network to remote data radios with serial ports.

SCADA Ethernet Interface Radio Modem

  • Wirelessly Connect your RTU to your network

Multiple Ethernet Connections for Wireless Data

Computers can send data to other computers over lone range wireless links using TCP/IP connections.

Because there are multiple Ports and long range data radios, computers can communicate many miles away,
and it is possible to use thousands of M55-E Ethernet radios so thousands of networks or computers can communicate.
Communications can be  setup in GROUPs so a radio or computer can talk to a group.

The RV-M55-E has an Ethernet TCP/IP interface. One terminal will send the data over the air using the radio modem inside the RV-M55-E.

The other Ethernet Terminal can communicate with the RS-485 serial port interface on the RV-M55-E.

 TCP/IP radio modem on UHF

The RV_M55-E6-U runs on the UHF band 450-470MHz.  It utilizes the RV-M6 data radio with up to 2 watts RF power output.

Power can be adjusted, and many other bands are available.

 TCP/IP radio modem on VHF

The RV_M55-E6-V runs on the VHF band 150-175 MHz.  It utilizes the RV-M6 data radio with up to 2 watts RF power output.

Power can be adjusted, and many other bands are available.  For higher power, the M8 modem can output 5 watts in this product.


TCP/IP radio modem Bands

These frequency bands are available in the RV-M55-E with Raveon’s data radio modems.
Here is a list of bands and Radio modems that can be used in this Ethernet Interface Data Radio.

-UA             400-434 MHz (non-US/gov.) {RV-M8} {RV-M6}
-UB               430-450 MHz (non-US/gov.) {RV-M8} {RV-M6}
-UC              450-480 MHz {RV-M8} {RV-M6}
-UD              470-512 MHz (non-US/gov.) {RV-M8} {RV-M6}
-UJ                380-400 MHz (non-US/gov.) {RV-M8} {RV-M6}
– VA              132-155 MHz (non-US/gov.) {RV-M8} {RV-M6}
– VB               150-174 MHz {RV-M8} {RV-M6}
– VC              216-222 MHz {RV-M8} {RV-M6}
-EC              902-928 MHz (North/South America) (RV-M50)
-ED              863–870 MHz  (Europe/export) (RV-M50)

Over the Skyline, Wireless Modem Coverage Works

  • Use tall antennas (towers, building rooftops,…)

–Range would be 2-15kM. The tall antenna should be on the master controller or base station.  The remote daisy nodes can have small or tiny antennas.

  • Communications to/from Modems, RTUs and RAZNs

–This Ethernet Interface radio can talk long-range to many RTUs using wireless modems.

–Raveon has many SCADA RTUs called Remote Autonomous Zone Nodes RAZN with build in wireless modems to talk to this.
The modems can be VHF, UHF, or 915MHz license-free band radios.  All are available from Raveon.

  • Integrated radio and modems  one or two
  • With the RV-M6 modem, programmable 1/4 to 2 watts RF outputs.
  • With the RV-M8 modem, programmable 1/2 to 5 watts RF outputs.
  • Built in data encryption.
  • Ethernet Interface and RS485 interface.
  • Build in temperature sensor you can read.
  • Build-in accelerometer to measure angle and vibration to this product.
  • Outstanding Range. 5-50 miles typical
  • Real-time streaming data or Packetized operation – user configurable
  • Each modem is store-and-forward repeater capable
  • Standard Carrier-sense channel access or TDMA, user selectable
  • 32 bit CPU with base-band Digital Signal Processing for exceptional sensitivity
  • Built-in automatic status monitoring of modem performance and DC input voltage
  • Compatible with MODBUS and DNP-3
  • You don’t need to Re-Boot the radio.  If it fails for some reason, it automatically Re-Boots to keep running Safe.

Frequency Bands Available

  • VHF
  • UHF
  • 220MHz
  • ISM band 915MHz

The Data sheet for this product

RV-M55-E Data Sheet (pdf)  Ethernet Data Radio modem

AC Power supply is available from Raveon.  PS-55-A 

The connector is 11mm X 5.5mm  Inside Diameter 2.1mm

If you just want cable with a connector, the RK-C55-1 items is available for DC power input to the RV-M55-E

RK-E55-U4  To connect to the RS-485 Interface, there are USB versions available.
Raveon can supply you one if you want. The part to buy is RK-E55-U4.  Here what it looks like:

To plug it into the RS-485 5 pin connector, you need to wire it up.


The 5 pin connector is available from Raveon, part number 1J485-5.

A 5 pin RS-485 Pluggable Terminal Block with 5 Pos

MOLEX makes a version  0395105005 that works great on this product.


RK-E55-U4B    is an RS-485 interface for USB with 12 inch cable connected to 5 Pin header, available from Raveon.

Back To Top