Gravity: UART Fiber Optic Transceiver Module

Sale price £24.50
incl. VAT
excl. VAT
Only 5 units left

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Are you still making do with hard, thick shielded twisted pair wire for remote signal-transmitting, dropping the baud rate again and again just for transmission stability? Now get rid of these problems by using this Gravity: UART Fiber Optic Transceiver Module from DFRobot!

With complete electrical isolation for preventing electromagnetic interference, this module runs at 2000000 baud at any time within a distance of up to 10km (absolute maximum, your mileage may vary depending on your setup). It features lightning protection and can share cable trunking with strong power. Also, users can use it with a passive optical splitter to realize one-to-many star networking.

Two transceiver modules for only half the price of shielded twisted pair can provide users with long-distance & interference-free fiber-optic communication!

Grab a compatible fiver jumper cable here!


Name Description
Gravity: UART UART interface, connect to MCU or sensor
PWR LED Power indicator, turns ON when powered on
SD LED Indicator for optical fiber disconnection, which lights up when the fiber optic disconnection is detected
TX LED Indicator for fiber optic transmitting, which blinks when transmitting signal
RX LED Indicator for fiber optic receiving, which blinks when receiving signal
SC Fiber Optic Interface Connect to SC fiber optic interface

The SD LED cannot show all the fiber disconnections or unstable transmissions. Please use a red pen, optical power meter and other tools to check errors when a connection problem occurs.

Connection Example


Gravity: UART Fiber Optic Transceiver Module Connection Example



  • With complete electrical isolation
  • Lightning protection


  • Supply Voltage: 3.3V~5V
  • Signal Voltage: 3.3V~5V
  • Maximum Speed: 2000000 baud
  • Communication Distance: 10km
  • Operating Wavelength: 1310nm
  • Fiber Optic Type: Single Mode
  • Fiber Optic Interface: SC
  • Operating Temperature: 0~70℃


Package Contents

  • 1x Gravity: UART Fiber Optic Transceiver Module
  • 1x Gravity 4-pin Connector

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