Rectifier modules
RM4850 (50 A) and RM4875 (75 A) hot-swap −48 V rectifier modules, the shared building blocks across every FO-DC power system, for capacity expansion, N+1 redundancy and spares.
Key applications: capacity upgrades and expansion, N+1 redundancy, field spares, mixed indoor / outdoor FO-DC fleets.
The FO-DC platform
RM4850 / RM4875 modules
50 A and 75 A hot-swap rectifiers, MTBF ~100,000 h and ≥96% peak efficiency.
Modules
| Component | Function | Key ratings |
|---|---|---|
| RM4850 | 50 A rectifier module | −48 V, hot-swap, ≥96% efficiency |
| RM4875 | 75 A rectifier module | −48 V, hot-swap, ≥96% efficiency |
Modules are interchangeable across the FO-DC-48 range. Detailed per-module datasheets are confirmed on request.
Module
| Parameter | Value |
|---|---|
| Output voltage | 48 V DC nominal (−48 V) |
| Module ratings | RM4850: 50 A; RM4875: 75 A |
| Module efficiency | ≥96% peak |
| Module MTBF | ~100,000 h |
| Serviceability | Front-access, hot-swap; N+1 redundancy |
| Protection | Class C SPD, input / output breakers, over- / under-voltage and over-temperature shutdown |
Specifications reflect the FIBER OCEAN RM48xx rectifier module datasheets. Exact ratings vary by build; regional configuration and options are confirmed per project.
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