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Home Switches HUAWEI SWITCH S5700 Series S5751-L24P2X-RUA
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S5751-L24P2J-RUA
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BC15MBSA 0302012385
BC15MBSA 0302012385
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Huawei

S5751-L24P2X-RUA

S5751-L24P2X-RUA (24*10/100/1000BASE-T ports (PoE+), 2*10GE SFP+ ports, 400 W PoE, built-in AC power)

Brand

Huawei

Port

24+

Rate

10G

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SKU: 98012529 Category: S5700 Series
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  • Description
  • Specification
  • FAQ
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Description

Huawei S5751-L24P2X-RUA: High-Density 24-Port PoE+ Remote Unit with 10G Uplink

The Huawei S5751-L24P2X-RUA is the ultimate enterprise-grade Remote Unit (RU) engineered for Huawei’s High-Quality Simplified Network Architecture. By merging 24 Gigabit PoE+ access ports with dual 10G SFP+ uplinks into a single sleek, fanless chassis, this flagship device brings massive power, exceptional density, and unrestricted bandwidth directly to the network edge.

It is the perfect choice for next-generation smart offices, dense call centers, and digital education hubs.

Flagship Technical Interface

  • PoE+ Downlink Ports: 24 x 10/100/1000Base-T Ethernet ports (IEEE 802.3at/af compliant).

  • Uplink Ports: 2 x 10G SFP+ slots (10 Gigabit ultra-high-speed fiber backhaul).

  • Management Architecture: 100% plug-and-play, centrally controlled by the Central Switch.

Core Value Propositions of the S5751-L24P2X-RUA

1. Unmatched 10G Uplink Pipeline

When 24 Gigabit ports are running at full capacity (handling 4K video conferencing, cloud syncs, or large database transfers), standard 1G uplinks create severe network bottlenecks. The dual 10G SFP+ uplinks on this model deliver a massive 20Gbps backhaul pipeline, ensuring completely non-blocking performance across all 24 ports.

2. Ultimate PoE+ Clutter Reduction

Eliminate the need for dozens of messy power adapters. The S5751-L24P2X-RUA feeds enterprise IP phones, Wi-Fi 6/7 Access Points, and PTZ surveillance cameras directly through the network cable, delivering up to 30W of safe, standard-compliant PoE+ power per port.

3. Radically Simplified Cabling (Fiber-to-the-Zone)

Instead of pulling 24 thick, expensive copper lines from the main server room to a localized cluster of desks, you only need to mount the S5751-L24P2X-RUA locally and link it back to the core switch using just two lightweight fiber cables. This approach heavily slashes infrastructure material costs and labor time.

4. 0dB Absolute Silence

Typically, high-density 10G PoE+ switches require loud, dust-gathering cooling fans. Thanks to advanced thermal engineering, the S5751-L24P2X-RUA runs entirely fanless. It operates in complete 0dB silence, making it ideal for open offices, classrooms, and hotel floors.

System Infrastructure Compatibility

The S5751-L24P2X-RUA is deployed as a remote line card extensions and requires pairing with compatible central switches:

  • CloudEngine S6730-H Series (Highly recommended for 10G aggregation)

  • CloudEngine S5731-H Series

  • CloudEngine S12700E Series

Specification

Specification

Item Specification
Dimensions without packaging (H x W x D) [mm(in.)] Basic dimensions (excluding the parts protruding from the body): 43.6 mm x 442 mm x 220 mm (1.72 in. x 17.40 in. x 8.66 in.)

Maximum dimensions (the depth is the distance from ports on the front panel to the parts protruding from the rear panel): 43.6 mm x 442 mm x 227 mm (1.72 in. x 17.40 in. x 8.94 in.)

Dimensions with packaging (H x W x D) [mm(in.)] 90.0 mm x 550.0 mm x 360.0 mm (3.54 in. x 21.65 in. x 14.17 in.)
Chassis height [U] 1 U
Chassis material Metal
Weight without packaging [kg(lb)] 2.79 kg (6.15 lb)
Weight with packaging [kg(lb)] 3.85 kg (8.49 lb)
Typical power consumption [W] 30.32 W
Typical heat dissipation [BTU/hour] 103.44 BTU/hour
Maximum power consumption [W]
  • Without PoE: 32.42 W
  • Full PoE load: 482.68 W (PoE: 400 W)
Maximum heat dissipation [BTU/hour]
  • Without PoE: 110.63
  • Full PoE load: 1646.95
Static power consumption [W] 15.74 W
MTBF [years] 48.88 years
Availability > 0.99999
Noise at normal temperature (acoustic power) [dB(A)] 52.8 dB(A)
Noise at normal temperature (acoustic pressure) [dB(A)] 40.1 dB(A)
Number of card slots 0
Number of power slots 0
Number of fans modules 2
Redundant power supply Not supported
Long-term operating temperature [°C(°F)] –5°C to +45°C (23°F to 113°F) at an altitude of 0 to 1800 m (0 to 5905.44 ft.)
Restriction on the operating temperature variation rate [°C(°F)] When the altitude is 1800-5000 m (5906-16404 ft.), the highest operating temperature reduces by 1°C (1.8°F) every time the altitude increases by 220 m (722 ft.).

Devices cannot start when the temperature is lower than 0°C (32°F).

Storage temperature [°C(°F)] –40°C to +70°C (–40°F to +158°F)
Long-term operating relative humidity [RH] 5% RH to 95% RH, non-condensing
Long-term operating altitude [m(ft.)] 0–5000 m (0–16404 ft.)
Storage altitude [m(ft.)] 0-5000 m (0-16404 ft.)
Power supply mode AC built-in
Rated input voltage [V]
  • AC input: 100 V AC to 240 V AC, 50/60 Hz
  • High-voltage DC input: 240 V DC
Input voltage range [V]
  • AC input: 90 V AC to 290 V AC; 45 Hz to 65 Hz
  • High-voltage DC input: 190 V DC to 290 V DC
Maximum input current [A] 6 A
Memory –
Flash memory –
Console port Not supported
Eth Management port Not supported
USB Not supported
RTC Not supported
RPS input Not supported
Power supply surge protection [kV] Differential mode: ±6 kV; common mode: ±6 kV
Ingress protection level (dustproof/waterproof) IP20
Types of fans Built-in
Heat dissipation mode Air cooling
Airflow direction Air intake from left and front, air exhaustion from right
PoE Supported
Certification EMC certification

Safety certification

Manufacturing certification

FAQ

FAQ

Q: Can the 10G SFP+ ports of this RU accept 1G SFP optical modules?

A: Yes, the dual 10G SFP+ uplink ports are backward compatible with standard 1G SFP modules, offering excellent flexibility if you plan to upgrade your core network infrastructure to 10G in phases.

Q: Does this unit have its own management IP address?

A: No. As a dedicated Remote Unit (RU) in Huawei’s simplified architecture, it requires zero local configuration. It automatically registers with the central switch, which manages all routing, security, and configurations centrally.

Q: What is the total PoE power budget for this 24-port unit?

A: The ultimate PoE budget scales based on the high-capacity external industrial power module connected to the RU. Please consult with our technical support team to select the perfect power adapter matching your total device wattage requirements.

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