Understanding FMP
Fault Managed Power (FMP) operates through three components that work together to enable safe and efficient power delivery.
At the source, the Transmitter (TX) serves as the system's starting point, converting standard AC power to DC through a rectifier or native DC power from a source such as solar, and then adjusting it to the appropriate transmission voltage using a DC-to-DC converter. The TX incorporates specialized fault management circuitry to continuously monitor and control power delivery, ensuring it works effectively with compatible receivers (RX). The power transport cable forms the crucial link between the TX and RX, featuring specific design requirements for proper fault management. These cables can be integrated into hybrid copper-fiber cables for simultaneous power and data transmission. The cable specifications, including gauge size, length, and number of pairs, can be customized based on specific application needs, but must undergo testing as part of the complete system to ensure proper fault management functionality. At the receiving end, the Receiver (RX) completes the system by converting the incoming fault-managed power into usable voltage for end devices, such as 48V DC for network switches. The RX can either exist as a standalone unit or be integrated directly into telecommunications equipment. Together, these three components create a comprehensive system that maintains constant monitoring and control of voltage and current between the TX and RX, ensuring safe and efficient power delivery.
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FMP Transmitter
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FMP Transport Cable
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FMP Receiver
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