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S5751-L24T2X-RUA

S5751-L24T2X-RUA (24*10/100/1000BASE-T ports, 2*10GE SFP+ ports, built-in AC power, Fanless)

Brand

Huawei
Port

24+
Rate

10G
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SKU: 98012510 Category:
Description

Huawei S5751-L24T2X-RUA: High-Density 24-Port RU with 10G Uplink

The Huawei S5751-L24T2X-RUA is a premier Remote Unit (RU) designed for high-density access layers within Huawei’s Simplified Network Architecture. It combines 24 Gigabit Ethernet ports with dual 10G SFP+ uplinks, providing massive backhaul capacity. This model is engineered for environments that require extensive wired connectivity—such as large open offices, trading floors, and computer labs—without compromising on speed.

High-Bandwidth Configuration

  • Downlink Ports: 24 x 10/100/1000Base-T Ethernet ports.

  • Uplink Ports: 2 x 10G SFP+ ports (Ensuring ultra-fast, non-blocking backhaul to the central switch).

  • Architecture: Centrally managed “Central Switch + RU” solution.

Key Advantages of the S5751-L24T2X-RUA

1. Eliminate Congestion with 10G Uplinks

With 24 Gigabit ports active, a standard 1G uplink can quickly become a bottleneck. The 10G SFP+ uplinks on this model provide 10x the bandwidth, ensuring smooth data flow for high-definition video conferencing, cloud applications, and large file transfers across all 24 ports.

2. Maximum Port Density, Minimum Footprint

The S5751-L24T2X-RUA allows you to connect up to 24 wired devices using a single remote unit. This reduces the number of RUs needed per floor and simplifies the “Fiber-to-the-Zone” cabling strategy, saving both space and installation costs.

3. 0dB Silent & Eco-Friendly Design

Despite its high port count and 10G performance, this unit remains fanless. It operates in complete silence, making it perfect for installation in wall-mounted cabinets within office areas or directly under large conference tables.

4. Plug-and-Play Management

As an RU, it requires zero independent configuration. The device is automatically discovered and managed by the central switch. Policies, VLANs, and firmware updates are pushed centrally, reducing on-site maintenance requirements significantly.

Deployment Best Practices

The S5751-L24T2X-RUA is most effective when paired with high-performance Huawei Central Switches:

  • CloudEngine S6730-H Series (Recommended for 10G link aggregation)

  • 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 160 mm (1.72 in. x 17.40 in. x 6.30 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 167 mm (1.72 in. x 17.40 in. x 6.57 in.)
Dimensions with packaging (H x W x D) [mm(in.)] 90.0 mm x 550.0 mm x 260.0 mm (3.54 in. x 21.65 in. x 10.24 in.)
Chassis height [U] 1 U
Chassis material Metal
Weight without packaging [kg(lb)] 1.98 kg (4.37 lb)
Weight with packaging [kg(lb)] 2.94 kg (6.48 lb)
Typical power consumption [W] 18.30 W
Typical heat dissipation [BTU/hour] 62.44 BTU/hour
Maximum power consumption [W] 18.90 W
Maximum heat dissipation [BTU/hour] 64.49 BTU/hour
Static power consumption [W] 8.14 W
MTBF [years] 59.46 years
Availability > 0.99999
Noise at normal temperature (acoustic power) [dB(A)] Noise-free (no fans), < 30
Noise at normal temperature (acoustic pressure) [dB(A)] Noise-free (no fans), < 20
Number of card slots 0
Number of power slots 0
Number of fans modules 0
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: 100–240 V AC; 50/60 Hz
Input voltage range [V] AC input: 90 V AC to 264 V AC; 45 Hz to 65 Hz
Maximum input current [A] 0.8 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 None
Heat dissipation mode Natural heat dissipation
Airflow direction –
PoE Not supported
Certification EMC certification

Safety certification

Manufacturing certification
FAQ

FAQ

Q: Can I use 1G SFP modules in the 10G ports of the S5751-L24T2X-RUA?

A: Yes, the 10G SFP+ ports are backward compatible with 1G SFP modules, providing flexibility for businesses planning a gradual upgrade to a 10G core.

Q: Does this model support PoE?

A: No, this is a non-PoE (“T” series) model. It is designed for data-heavy environments where devices (like PCs and printers) have their own power sources.

Q: How does the “Central Switch + RU” architecture save money?

A: It reduces the need for multiple small switches with independent management IPs. You only manage one central switch, while the RUs act as extended ports, cutting down on software licensing and labor costs.

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