ALSTOM CMU 42015-115-00 Communication Management Unit

The ALSTOM CMU 42015-115-00 is a high-performance communication management unit (CMU) engineered to act as a central gateway in electrical substations. It collects data from various intelligent electronic devices (IEDs), performs protocol conversion, and concentrates information for transmission to SCADA systems or higher-level control centers.

Key Features

• Multi-protocol support: IEC 61850, IEC 60870-5-101/104, DNP3, Modbus RTU/TCP, and proprietary protocols

• Data concentrator with up to 32 IED connections via serial and Ethernet interfaces

• High processing capacity for real-time event handling and reporting

• Redundant power supply and communication options for enhanced reliability

• Built-in web-based configuration and diagnostics

• Cyber security features including role-based access control and audit trails

Technical Specifications

• Processor: 800 MHz ARM Cortex-A9

• Memory: 1 GB RAM, 4 GB flash storage

• Ethernet ports: 4 x 10/100/1000 Base-T (RJ45) or fiber options

• Serial ports: 8 x RS232/RS485 isolated

• Time synchronization: SNTP, IRIG-B, PTP (IEEE 1588)

• Power supply: 24–250 V DC or 100–240 V AC

• Operating temperature: -40°C to +85°C

Applications

The CMU 42015-115-00 is widely used in substation automation systems, renewable energy plants, and industrial power networks. It serves as a protocol gateway between legacy IEDs and modern SCADA infrastructure, facilitates data integration for condition monitoring, and supports remote control and configuration.

Scalability and Flexibility

The unit can be expanded with additional I/O modules and supports customized protocol drivers. Its modular design allows it to adapt to evolving communication requirements, ensuring long-term investment protection. The CMU also supports horizontal communication between IEDs for fast interlocking and protection schemes.

Reliability and Compliance

Designed for harsh substation environments, the CMU 42015-115-00 meets IEC 61850-3, IEEE 1613, and IEC 61000-6-5 standards. Its rugged enclosure and wide temperature range guarantee stable performance under extreme conditions. With no moving parts and conformal-coated circuit boards, the unit provides years of maintenance-free operation.

By deploying the ALSTOM CMU 42015-115-00, utilities and industries can achieve seamless communication interoperability and future-proof their automation infrastructure.