DJI M400 Tethered Power System V1

DJI M400 Tethered Power System Ver. 1.0

Maximum autonomy, safety and performance for the DJI Matrice 400RTK with TPS110M-M400 from Rosefinch Technology: the top-of-the-line tethered solution designed for professionals who want no limits.

Technical-Functional Description

The TPS110M-M400 Tethered Power System allows the Matrice 400RTK to operate continuously up to 24 hours of flight Thanks to the direct power supply system via a 110-meter special aviation cable. Ideal for surveillance, emergency, security, events, monitoring, and critical operations requiring time, stability, and absolute reliability.

Ground Module
The ground station, designed for mobile missions, integrates:

• Wide input 190–240Vac (220V single phase), frequency 50/60Hz
• Adjustable output 700–750Vdc, stable power ≥3000W (peak ≥3500W for 30s)
• Multiple protections (overvoltage, undervoltage, short circuit, overcurrent, overtemperature)
• Automated cable management (reel winch): retraction and unwinding 0–2m/s, adjustable tension 0–15N, integrated backup battery for guided recovery in emergency conditions
• 4.3" touch display with real-time display of all electrical parameters, temperatures, consumption, logs and operational event records
• Comprehensive interface: Lingke LP20-3P, LP12 aviation, Type-C, RJ45, fiber optic (optional) for data and commands, Bluetooth 5.0 for wireless communications between station and GCS.
• IPx5 certified for operation in any environment, weight 12.5kg with cable

Tethered Wire/Cable
Maximum robustness special aviation solution:

• Lightweight, high-temperature resistant aeronautical alloy, fluoroplastic sheath, high modulus fiber weave for mechanical strength
• Rated current 5A, DC resistance 7.4±0.2Ω (100m@20°C)
• Pulling force ≥ 60kg, retraction/rewinding cycle ≥ 1000 times guaranteed
• Basic insulation ≥ 3000Vdc (no breakdown tested 1min)
• 110m cable, outer diameter 3.2±0.1mm, weight 17.5±1g/m, variety of optical fibers for high-speed data transmission (optional with FC connector)
• Optoelectronic composite for simultaneous energy and data transmission (video missions, remote control, scientific monitoring)

Air Module
Robust and intelligent on-board motorization and power supply:

• Wide-range 580–810Vdc input, constant 51.8±0.5Vdc output (no fluctuations, no backup battery degradation)
• Continuous power 3000W, peak up to 3500W (>10s)
• Built-in protections: input over/undervoltage, output overvoltage/overcurrent/temperature/short circuit
• Super-fast installation (“quick dismantling track mount”): the staff doesn't waste time, just one click for tether conversion
• Advanced cooling: active fans, forced ducting (attack and recovery even in severe conditions)
• LP12-3P interface (input), LP12 for illumination and external payload
• Super compact size: 160×94×49mm, weight 995g

Optional lighting
Spot LED modules (2 x 400W, 100,000 total lumens, quick lock):

• 750V power supply, quick assembly, maximum diffusion for large areas/emergencies/logistics

Safety and Precautions

• Total AC/DC separation, electrical isolation, anti-leak protections up to 3000V
• 14.4V/16.8V 3000mAh battery backup, automatic cable recovery in case of blackout
• Strict operational recommendations (avoid cable damage, electrical risk in extreme conditions, synchronization of drone ascent/descent speed with reel in/out)

Customization and support

• Rosefinch supports bespoke hardware/software customizations (range, performance, extreme environments) and direct support.

Technical Specifications Table