Powerline Modules Streamline EV Charger Installation

MaxLinear and Comtrend have introduced a solution with the launch of their PM-1540 G.hn-based powerline communication (PLC) modules. These devices, built on ITU-T standards, transmit data over existing powerlines, offering a practical and cost-effective alternative to LAN, Wi-Fi, or cellular backhaul in EVSE and smart infrastructure installations.

The PM1540 can help scale EV charger installations with significant cost savings while utilizing existing electrical wires. Adapted from image used courtesy of Comtrend

High-Speed Data Over Power for Smart EV Infrastructure

The PM-1540 can support up to 2 Gbps physical data rates. It uses 50 MHz MIMO and OFDM modulation to maintain fast and stable connections, even under the electrical noise often found in industrial environments. With built-in forward error correction, enforced quality of service, and low-latency packet handling, the module ensures continuous and reliable communication between EV chargers, meters, and backend systems.

Practical Integration from Field to Backend

Comtrend’s PM-1540 includes four Gigabit Ethernet ports with auto-sensing capability, an RS-485 interface, and digital I/O connections for direct integration with industrial systems. Engineers can easily connect the modules to EV chargers, sensors, meters, or controllers using common protocols. A terminal block simplifies access to AC power lines, and a DIN rail kit is available to speed up enclosure installations.

Remote management is supported through TR-069 over IPv4/IPv6, and the module also includes a browser-based interface for local configuration. This gives engineering teams flexibility during setup and maintenance.

The PM-1540 powerline module provides a browser-based interface and digital I/O connections for direct integration into industrial systems. Image used courtesy of Comtrend

Designed to Scale from Dozens to Hundreds of Chargers

Each PLC domain can support up to 250 nodes and spans a distance of up to 700 meters using up to 16 levels of signal repetition. This makes the PM-1540 a strong fit for both small and large-scale EVSE installations, as well as smart parking, data centers, and power monitoring systems.

Unlike Ethernet, which requires more complex topology planning, or cellular solutions with ongoing data fees and inconsistent service, powerline communication offers a more dependable and budget-conscious approach to connecting infrastructure.

Faster Installations with Less Labor and Fewer Materials

Rapid deployment is essential for scaling EV infrastructure. The PM-1540 can be installed relatively quickly without the need for trenching or specialized cabling. Installers can connect directly to the AC junction box, which enables immediate data transmission without additional hardware, shortening project timelines and eliminating dependency on additional networking equipment or contractors.

Supporting the Broader Push Toward a Smarter Grid

G.hn is increasingly used in smart grids, utility metering, and industrial IoT networks where reliable, real-time communication is critical. The PM-1540 is not only a solution for EV charging infrastructure but also a key component for future-ready, distributed energy systems.

Engineering teams working on EV charging stations need solutions that combine reliability, scalability, and simplicity. The PM-1540 powerline module from Comtrend, powered by MaxLinear G.hn technology, provides a real-time, cost-effective way to connect EVSE systems using the infrastructure already in place.