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Huawei

S5751-L8T2X-RUA

S5751-L8T2X-RUA (8*10/100/1000BASE-T ports, 2*10GE SFP+ ports, with 1*AC power adapter, Fanless)

Brand

Huawei
Port

8
Rate

10G
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SKU: 98012462 Category:
Description

Huawei S5751-L8T2X-RUA: High-Bandwidth 10G Uplink Remote Unit

The Huawei S5751-L8T2X-RUA is a next-generation Remote Unit (RU) designed for the High-Quality Simplified Network Architecture. By integrating dual 10G SFP+ uplink ports, this unit eliminates bandwidth bottlenecks at the access layer, providing a high-speed fiber-to-the-desktop (FTTD) experience for data-intensive modern workplaces.

Advanced Interface Configuration

  • Downlink Ports: 8 x 10/100/1000Base-T Ethernet ports.

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

  • Management: Zero-touch management (Centrally controlled by the Central Switch).

Core Benefits for High-Performance Campuses

1. Massive 10G Uplink Bandwidth

Unlike standard GE RUs, the S5751-L8T2X-RUA features 10G SFP+ uplinks. This ensures that even when all 8 gigabit downlink ports are under full load (e.g., 4K video conferencing or large file transfers), the backhaul remains smooth and lag-free.

2. Simplified “Central Switch + RU” Architecture

The RU functions as a remote line card for the central switch. It requires zero independent configuration. Simply connect the RU, and it automatically inherits all management and security policies from the core, reducing O&M complexity.

3. 0dB Silent Operation

The fanless design ensures a completely silent environment, making it the ideal choice for noise-sensitive areas like high-end executive offices, hospital wards, and quiet library study zones.

4. Ultra-Low Power Consumption

Engineered for energy efficiency, the S5751-L8T2X-RUA helps enterprises reduce their carbon footprint while maintaining enterprise-grade performance.

Deployment Scenario

The S5751-L8T2X-RUA is designed to be paired with Huawei Central Switches such as:

  • CloudEngine S6730-H Series

  • 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): 35 mm x 195 mm x 130 mm (1.38 in. x 7.68 in. x 5.12 in.)

Maximum dimensions (the depth is the distance from ports on the front panel to the parts protruding from the rear panel): 35 mm x 195 mm x 136 mm (1.38 in. x 7.68 in. x 5.35 in.)
Dimensions with packaging (H x W x D) [mm(in.)] 93.0 mm x 285.0 mm x 190.0 mm (3.66 in. x 11.22 in. x 7.48 in.)
Chassis height [U] 0.8 U
Chassis material Metal
Weight without packaging [kg(lb)] 0.83 kg (1.83 lb)
Weight with packaging [kg(lb)] 1.28 kg (2.82 lb)
Typical power consumption [W] 10.52 W
Typical heat dissipation [BTU/hour] 35.90 BTU/hour
Maximum power consumption [W]
  • 7.46 W (body)
  • 10.93 W (device + adapter)
Maximum heat dissipation [BTU/hour]
  • 25.45 (device)
  • 37.29 (device + adapter)
Static power consumption [W] 4.85 W
MTBF [years] 102.91 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 5906 ft.)

When the power adapter AD-120100E0W (Europe) (part number: 02221933) is used, the long-term operating temperature of the device ranges from –5°C to +40°C (23°F to 104°F).
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 Power adapter
Rated input voltage [V] Power adapter HW-120100C9W (China), part number 02221791:

  • Power adapter input: 170 V AC to 240 V AC; 50/60 Hz
  • Power adapter output: 12 V DC

Power adapter AD-120100E0W (Europe), part number 02221933:

  • Power adapter input: 100 V AC to 240 V AC; 50/60 Hz
  • Power adapter output: 12 V DC

Power adapter AD-120100B0W (UK), part number 02221936:

  • Power adapter input: 100 V AC to 240 V AC; 50/60 Hz
  • Power adapter output: 12 V DC

Power adapter AD-120100U0W (USA), part number 02221932:

  • Power adapter input: 100 V AC to 240 V AC; 50/60 Hz
  • Power adapter output: 12 V DC
Input voltage range [V] Power adapter HW-120100C9W (China), part number 02221791:

– Power adapter input: 170 V AC to 270 V AC; 47 Hz to 63 Hz

Power adapter AD-120100E0W (Europe), part number 02221933:

– Power adapter input: 90 V AC to 264 V AC; 45 Hz to 65 Hz

Power adapter AD-120100B0W (UK), part number 02221936:

– Power adapter input: 90 V AC to 264 V AC; 45 Hz to 65 Hz

Power adapter AD-120100U0W (USA), part number 02221932:

– Power adapter input: 90 V AC to 264 V AC; 47 Hz to 63 Hz
Maximum input current [A] 1 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: ±4 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: What is the advantage of 10G SFP+ over 1G SFP in a Remote Unit? A: 10G SFP+ provides 10 times the bandwidth of 1G SFP. This is critical for networks handling high-definition video, large cloud backups, or high-density Wi-Fi 6 access points.

Q: Does the S5751-L8T2X-RUA support independent management? A: No, it is a Remote Unit (RU) designed for simplified architecture. It must be managed centrally by a compatible Huawei central switch.

Q: Can I use 1G SFP modules in the 10G ports? A: Yes, the 10G SFP+ ports are typically backward compatible with 1G SFP modules, providing flexibility for gradual network upgrades.

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