Reliable reefer monitoring over the power lines you already have.
PCT, or Powerline Cable Transmission, delivers real‑time reefer monitoring through existing 3‑phase electrical cabling. No wireless networks. No antennas. No batteries. Just stable, proven communication between each reefer and your monitoring interface.
The platform that started remote reefer monitoring
RTE introduced the first commercial PCT reefer monitoring platform in 1985 — and the core technology remains effective today in the right operational environments.
By injecting high‑frequency signals onto the power line, PCT enables data exchange between each reefer and the monitoring interface without installing additional communication infrastructure.
For operators who control their own reefers or vessels, PCT continues to deliver dependable, low‑maintenance performance.
Benefits of a PCT Reefer Monitoring Environment
Unlimited Reefer Capacity
Monitor hundreds of reefers or more across your yard or vessel without adding network load.
Minimal Installation Requirements
Uses existing electrical cabling — no additional wiring infrastructure.
GRASP™3.0 Compatible
Fully integrated with RTE’s GRASP platform for real‑time data, alerts, and dashboards.
How a PCT Powerline Cable Transimission Reefer Monitoring Works
PCT modems installed in each reefer transmit and receive data using high‑frequency signals injected onto the power line.
This allows communication to travel through the same electrical cables that power the reefer — eliminating the need for wireless networks or additional cabling.
Operational Advantages of PCT
- Always‑on monitoring with real‑time notifications
- Reliable communication even in wireless‑restricted environments
- No batteries to maintain or replace
- Minimal equipment at each transformer
- Proven performance for operators with controlled fleets
- Low maintenance and long‑term stability
ISO 10368 Compliant
PCT complies with the ISO 10368 standard for Power Cable Transmission, ensuring compatibility and reliability across reefer operations on vessels and in terminals.
When PCT Is the Right Fit
PCT isn’t designed for every modern terminal — and it doesn’t need to be.
It remains a proven, reliable solution in environments where operators control the equipment and infrastructure.
PCT is ideal for:
- Fleet operators who own their reefers Installing PCT modems across a controlled fleet is straightforward and cost‑effective.
- Operators with their own vessels PCT performs exceptionally well in closed, vessel-based environments where wireless is limited or restricted.
- Terminals with strict RF limitations Powerline communication bypasses wireless entirely.
- New ship builds Shipyards can pre-install PCT transformer equipment, creating a fully integrated, low‑maintenance monitoring system from day one.
If your operation fits these conditions, PCT delivers unmatched reliability using the infrastructure you already have.
Related System Components
- GRASP™ Reefer Monitoring & Management Software Platform
The command window to your RTE reefer monitoring universe—intelligent, intuitive, and in control.
Explore GRASP
