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The FiberHome FitOn DP4860-A1 is a telecom power system designed to supply DC-powered equipment with a voltage of -48 V / -53.5 V. It features a 1U rack-mount enclosure and comes with a PMUD41-A01 control module and two FR4830N rectifier modules. Each rectifier provides an output current of 30 A, delivering approximately 1,605 W at the nominal output voltage of -53.5 V, for a total system output of 3,200 W. The input voltage range is 85–300 V AC, while the output voltage is adjustable from 42 to 58 V DC. External batteries can be connected to provide backup power in the event of a mains failure. Once the AC supply is restored, the batteries are automatically recharged. The power system features three DC output terminals, allowing you to power up to three devices directly.
Specifications
| FiberHome DP4860-A1 | |
| General Specifications | |
|---|---|
| Enclosure type | 19" Rack |
| Height | 1U |
| Maximum number of rectifiers | 2 |
| Total output current | 60 A (two rectifiers) |
| Hot-swap function | Yes |
| FR4830N Rectifier Module | |
| AC input voltage | 85 - 300 V AC |
| Frequency | 45 - 66 Hz |
| Rated output voltage | -48 V DC / -53.5 V DC |
| Output voltage adjustment range | 42 - 58 V DC |
| Output current | Up to 30 A |
| Output power | Approximately 1600 - 1740 W, depending on the output voltage |
| Cooling | Active, built-in fan |
| PMUD41-A01 Controller Module | |
| Measurements | Analog and digital |
| Communication |
Communication via two modes: RS485 or Ethernet (Web / SNMP). Can communicate with the rectifiers. Web-based management for remote control and local system monitoring SNMP protocol supports GET, SET, and TRAP operations |
| DI/DO |
8 digital inputs 8 dry-contact outputs |
| Display and LEDs |
128 × 32 LCD display for status information and local configuration Green / yellow / red LED indicates the operating status |
| Alarm and event history | Up to 1000 alarm logs and up to 1000 event logs, FIFO |





