Fast Charging Stack | ISO 15118 DC EV Charging Software

Overview

FCAS is a robust Fast Charging Application Software designed to enable secure, intelligent, and interoperable DC charging for electric vehicles. Built on Power Line Communication (PLC) technology, FCAS facilitates seamless bidirectional communication between the EV and the charging station over the same physical conductors used for power delivery, eliminating the need for separate data lines and ensuring a more reliable and efficient charging experience. Conforming to globally accepted ISO 15118 and DIN 70121 standards, FCAS ensures full compatibility with modern Combined Charging System (CCS) architectures and is engineered to support both High-Level Communication (HLC) and Low-Level Communication (LLC) phases of the charging process. Integrates well with third-party ISO 15118 stack and PLC modules with successful validation on 8+ chargers. Minimal efforts for validation on additional chargers.

Key Highlights

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PLC Communication: Seamless bidirectional EV–charger communication over power lines
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Standards Compliance: ISO 15118, DIN 70121, SAE J2847-2
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Interoperability: Validated on 8+ chargers, easy integration with third-party stacks
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Smart Charging Controls: SOC, cell-voltage, temperature-based charging logic
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Advanced Capabilities: Dual-gun charging, time-to-charge estimation, fault diagnostics

Technical Specification

Standards

ISO 15118, DIN 70121, SAE J2847-2

Communication

PLC (Power Line Communication)

Charge Phases

HLC (High-Level) & LLC (Low-Level)

Compatibility

CCS Architectures

Use Cases

DC Charging for Electric Vehicles

Bidirectional EV-Charger Communication

Secure & Interoperable Charging

Smart Charging Management

Why Choose OptM’s FCAS ?

Future Ready

Globally compliant with leading EV fast charging standards

Connected

Highly reliable communication for consistent charging experience

Adaptive

Easy to integrate with existing charger ecosystems

Secure

Add-on ready for functional safety and cybersecurity requirements

Make in India

At OptM, we are committed to strengthening India’s manufacturing ecosystem through cutting-edge technology, indigenous development, and world-class engineering solutions. We aim to drive national progress in Automotive, Defense and Broadcasting sector.

ARAI certified

Automotive Grade

Global Standards