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Serial RS232 Wireless RF Radio, 3900 Feet

  • Model: EZ50B
  • In Stock


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What we have here is a light-industrial grade serial RS232 RF radio modem which will allow you to send and receive wireless serial data between two serial devices or computers.

The advantage of a serial RF radio such as this is that it can be used without an operating system as a host. An operating system is only required to configure the parameters of the radio.
The parameters can be configured through the serial port of the radio by using the downloadable configuration utility. If your computer does not have an available COM port we strongly recommend using a high quality USB to serial adapter such as our part XS8801 for configuring the parameters.

This radio works in the unlicensed 915Mhz frequency band so no radio license is required.
It is ideal for most types of wireless serial communication of manufacturing machinery, CNC's, PLC's, printers, bar-code scanners or even home automation control.

With the included configuration software each RS232 serial wireless radio can be configured with custom data settings which includes baud rates, parity bit and channel frequency.
Each radio has 32 channels (old version only 8 channels) so multiple radio pairs can operate at the same location without interference. It is ideal for point-to-point communication which makes setting up a communication link fast and easy; however point-to-multi-point configurations can also be setup without problems.

Each package contains one RS232 serial wireless radio which works as a transceiver, meaning it can both transmit and receive data, however not simultaneously (half-duplex only). You will need two radios to setup a communication link. Also included is a male / female serial cable and a USB/DC adapter cable to power the radio from a USB port.

This radio can be powered through the included USB cable or an external standard wall plug 110VAC/5VDC adapter, which is sold separately.

serial wireless adapter setup

Overall features
  • Serial RS232 interface
  • Frequency 915MHz
  • RF power: 50mW/ 17dBm
  • 32 individual channels (old version only 8)
  • Baud rates: 9600 to 38400bps
  • Typ. range 1200m at 1200Bps
  • Operating system: Windows XP, Vista, 7, 8, 10
  • Power supply: 5VDC
Included items
  • Serial RF transciever
  • USB/DC adapter cable
  • Male/Female DB9 serial cable


Useful optional accessories
(not included)

usb power supply
110V/5VDC Power adapter

Battery pack
Rechargeable battery pack

gender changer
Gender Changer

null modem adapter
Null modem adapter
Model number EZ50B
Operating system for configuration software Windows XP, Vista, 7, 8, 10, 11
Interface RS232, DB9 Female
Communication mode Half duplex
RF power 50mW/ 17dBm
Frequency range 912 - 915Mhz
Number of channels 32 (radios sold after 05/16/2017)
8 (radios sold before 05/16/2017)
Baud rates 1200, 2400, 4800, 9600, 19200, 38400bps
Parity None, Even, Odd
Stop bits 1
Buffer size 512 bytes
Typ communication range 1200m (3900 feet) at 1200Bps
Data bits 8 (6 and 7 bits not supported)
Processor Atmel ATMEGA8L
Modulation GFSK
Receiver sensitivity -121dBm
Receiving current less than 30mA
Transmitting current less than 75mA
Sleep Current less than 10uA
Size 91 × 64 × 23mm
Power supply 4.5V -5.5VDC by USB or other external power source. (Absolute max voltage: 6VDC). Minimum 200mA recommended.
Operating temperature -4°F to 167°F (-20°C to 75°C)
Antenna connector (on converter) 50 ohm SMA female

For alternative wireless serial solutions please see our full selection of wireless RS232 adapters.


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