The Heda EPMU03 is a carrier-grade industrial central supervisory monitoring unit engineered for telecom -48V DC power and environmental supervisory systems, providing real-time acquisition and control over distribution panels, rectifiers, and battery plants.
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Built on an embedded 32-bit RISC processing core with galvanic isolation circuitry and active noise suppression, the EPMU03 coordinates the operation of multiple rectifier modules, AC/DC distribution channels, and battery strings via dual RS485 and RS232 serial buses, conforming strictly to YD/T telecom standards and rigorous industrial EMC specifications.
Eliminates blind-spot failures in base station power infrastructure, prevents catastrophic battery thermal runaway through precision multi-stage float/boost management, and ensures rapid notification of mains outage, DC overvoltage, and surge protective device (SPD) trips.
Tailored for telecom macro base stations, micro-cell deployments, outdoor integrated cabinets, microwave relay points, and tower company edge infrastructure.
| Key specifications | Value |
|---|---|
| System Nominal Voltage | 48V DC |
| Communication Interfaces | RS485, RS232 |
| Supported Protocols | Modbus, Heda Protocol |
| Display Interface | LCD Screen with Multi-Language Operator UI |
| Operating Temperature Range | -40°C ~ +75°C |
| Hot-Swappable Support | Yes (Live Hot-Pluggable / Plug-and-Play without Power Interruption) |
| Non-Volatile Log Capacity | 10,000+ Cyclic Event Records |
| Unit Power Consumption | < 8W (Ultra-Low Standby Design) |
| Industrial EMC Level | EN 55032 Class A / IEC 61000-4 Level 4 |
| Relative Humidity Tolerance | 5% to 95% RH (Non-Condensing) |
Heda
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