Huawei S5751-L24P2PN2X-RUA: High-Density 24-Port PoE-Powered RU with 10G Uplink
The Huawei S5751-L24P2PN2X-RUA is a revolutionary, flagship Remote Unit (RU) designed for high-density edge access within Huawei’s High-Quality Simplified Network Architecture. This unique device addresses the ultimate infrastructure challenge: delivering 24 Gigabit ports and 10GbE bandwidth to areas where local AC power outlets are unavailable or restricted. By supporting PoE-In technology, the entire switch can draw its operating power directly from the uplink cable.
Flagship Interface & Power Profiles
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High-Density Downlinks: 24 x 10/100/1000Base-T Ethernet ports (Supports PoE+ Out).
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Ultra-Fast Uplinks: 2 x 10G SFP+ slots (Delivering up to 20Gbps non-blocking backhaul).
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PoE-In Technology: Power the RU via network cabling connected to a central PoE++/high-power switch, eliminating local power drops.
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PoE+ Out Forwarding: Pass-through PoE+ (IEEE 802.3at/af) to power downstream IP phones, cameras, or APs.
Key Advantages of the S5751-L24P2PN2X-RUA
1. Revolutionary PoE-In (Ethernet-Powered) Design
The “PN” capability means this 24-port 10G switch does not require a local electrical outlet. This makes it a game-changer for heritage buildings, open-plan ceilings, or remote corridor enclosures where hiring an electrician to run AC lines is cost-prohibitive or structurally restricted.
2. Non-Blocking 10G Uplink Performance
When aggregating traffic from 24 active Gigabit ports, standard 1G uplinks easily bottleneck. The dual 10G SFP+ ports provide massive bandwidth headroom, ensuring seamless transmission for 4K video streams, mass cloud backups, and high-density office data.
3. High-Density Power & Data Consolidation
Instead of deploying three separate 8-port switches (which triples management overhead and cabling clutter), this single 24-port RU handles an entire office cluster. It cleanly redistributes data and PoE+ power to endpoints via standard Ethernet cables.
4. 0dB Fanless Silent Operation
High density and high performance usually require loud cooling fans. Thanks to Huawei’s advanced natural heat dissipation engineering, this unit runs completely fanless and silent (0dB), creating a distraction-free environment under desks or in conference rooms.
Core System Compatibility
As an extended remote card within the simplified campus framework, the S5751-L24P2PN2X-RUA requires zero local configuration and must be paired with:
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CloudEngine S6730-H Series (Highly recommended for 10G aggregation and high-power PoE++ output)
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CloudEngine S5731-H Series

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