TTL Fibre Optic Transceiver Module for Drones – 20/40/60 km

TTL Optical Transceiver Module – Long-Range Fibre Optic Signal Transmission for Drones

The Gaqqee TTL Optical Transceiver Module delivers exceptional long-range fibre optic communication for drone systems, supporting analogue video and TTL-level signal transmission over distances of up to 20 km, 40 km, or 60 km. Compact, lightweight, and highly efficient, this module is engineered for FPV remote control, pipeline communications, and emergency rescue operations.

Made in Mainland China.

Key Features

• Long-Range Communication: Choose from 20 km, 40 km, or 60 km range to suit your mission requirements.
• Dual-Wavelength Fibre Optics: Utilises a 1310 nm (airborne) and 1550 nm (ground) wavelength pair for stable, high-quality signal integrity.
• Ultra-Lightweight & Compact: Measures just 50 × 29 × 13 mm with power consumption of ≤5W — minimal impact on flight efficiency.
• FC Fibre Optic Interface: Delivers strong interference resistance for synchronous transmission of analogue video and TTL signals.
• Multi-Indicator Monitoring: Power, fibre optic, video signal, and data indicators give you a clear system status overview at a glance.
• Wide Voltage Compatibility: Supports DC 5.5–26V (2S–6S LiPo battery), making it highly versatile across drone platforms.
• CRSF Compatible: MX-SH1.0mm-5P interface supports CRSF protocol and CVBS video port.

Technical Specifications

Wiring Guide

Airborne Unit (1310 nm):
Pins: RX / TX / AV / VCC / GND
— Connect RX → Flight Controller CRSF TX
— Connect TX → Flight Controller CRSF RX
— Connect AV → Flight Controller AV signal output

Ground Unit (1550 nm):
Pins: RX / TX / AV / VCC / GND
— Connect RX → Remote Control Receiver CRSF TX
— Connect TX → Remote Control Receiver CRSF RX
— Connect AV → Display or VTX AV signal input

Important Safety Notes

• Do not exceed 26V supply voltage — risk of module burnout.
• Do not drop below 5V — onboard chips may malfunction below this threshold.

Package Contents

• TTL Optical Transceiver Module × 1
• 5-pin SH1.0 Connection Cable × 1

Application Scenarios

This module is ideally suited for FPV drone remote control, long-distance pipeline inspection communications, and emergency rescue aerial communications where reliable, interference-free signal transmission is critical.

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Frequently Asked Questions

Q: What communication ranges are available for the TTL Optical Transceiver Module?

A: The module is available in three range options: up to 20 km, 40 km, or 60 km. You can select your preferred range at the time of purchase to match your specific drone operation requirements.

Q: What power supply does this TTL fibre optic module require?

A: The module operates on DC 5.5V to 26V, which is compatible with standard 2S to 6S LiPo drone batteries. Ensure the supply stays within this range — below 5V may cause chip malfunction, and above 26V risks permanent damage.

Q: Is this module compatible with CRSF-based flight controllers and remote control systems?

A: Yes. The module features an MX-SH1.0mm-5P interface that supports the CRSF protocol, making it compatible with popular CRSF-based flight controllers and remote control receivers. It also supports CVBS video for analogue FPV systems.

Q: What is the difference between the airborne and ground units?

A: The airborne unit transmits at 1310 nm fibre optic wavelength and connects to the drone's flight controller. The ground unit operates at 1550 nm and connects to your remote control receiver and video display or VTX. The dual-wavelength design ensures clear, full-duplex signal separation for reliable two-way communication.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.