DFRobot
Gravity: UART Fiber Optic Transceiver Module
Still make do with the hard and thick shielded twisted pair for remote signal-transmitting? And even drop the baud rate again and again just for transmission...
Still make do with the hard and thick shielded twisted pair for remote signal-transmitting? And even drop 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. Besides, 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, good value for money!
Interface & Pin
Pinout
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
SD LED can not show all the fiber disconnections or unstable transmissions. Please use a red pen, optical power meter and other tools to check error when a connection problem occurs.
Wiring Instructions
Features
Applications
Specification
Documents
Shipping List
Jargon buster
Plain-language definitions for the technical terms used above.
- baud
- Baud is the signalling rate of a serial connection, often used as the speed setting for UART communication. Matching the baud rate matters because both connected devices must use the same setting for readable data.
- electromagnetic interference
- Electromagnetic interference is unwanted electrical noise from nearby devices, cables, or radio signals that can disturb a signal in a wire. Shielding helps reduce this noise, which matters for network adapters because cleaner signals are less likely to cause unreliable connections or data errors.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
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Supplier page — dfrobot.com
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