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Huawei

S5751-L8P2J-RUA

S5751-L8P2J-RUA (8*10/100/1000BASE-T ports (PoE+), 2*2.5GE SFP ports, 128 W PoE, with 1*220 V AC power adapter, Fanless)

Brand

Huawei
Port

8
Rate

10G
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SKU: 98012487 Category:
Description

Huawei S5751-L8P2J-RUA: 8-Port Gigabit PoE+ Remote Unit

The Huawei S5751-L8P2J-RUA is an innovative Remote Unit (RU) designed for Huawei’s High-Quality Simplified Network Architecture. This unit combines Gigabit PoE+ power delivery with a compact, fanless design, making it the perfect edge device for modern offices, smart classrooms, and hospitality environments where silent operation and device powering are essential.

Power & Interface Configuration

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

  • Uplink Ports: 2 x GE SFP ports (Gigabit fiber connectivity).

  • PoE Capability: Supports IEEE 802.3at (PoE+) and 802.3af (PoE), providing up to 30W per port.

  • PoE Budget: Delivers a total PoE budget of up to 124W, sufficient for a full density of typical IP devices.

Why Choose the S5751-L8P2J-RUA?

1. Integrated PoE+ Support

Eliminate the need for local power adapters. The S5751-L8P2J-RUA powers your Wi-Fi 6 access points, IP phones, and security cameras directly through the Ethernet cable, simplifying installation in ceilings or hard-to-reach areas.

2. Simplified “Zero-Touch” Management

As part of Huawei’s simplified architecture, this RU requires no independent configuration. It is automatically discovered and managed by the central switch, allowing for rapid deployment and easy replacement without specialized IT staff on-site.

3. Fanless Silent Operation

Designed for the “quiet zone.” With no moving fans, this unit operates in 0dB silence, ensuring no distractions in offices, hotel rooms, or medical environments.

4. Space-Saving Architecture

By moving the switching and power functions closer to the user, you reduce the massive bundles of cables running back to the telecom room, saving space and reducing fire hazards in cable risers.

Required Central Switches

The S5751-L8P2J-RUA must be connected to a central switch supporting Huawei’s Simplified Network Solution, such as:

  • CloudEngine S5731-H Series

  • CloudEngine S6730-H 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 195 mm x 160 mm (1.72 in. x 7.68 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 195 mm x 166.2 mm (1.72 in. x 7.68 in. x 6.54 in.)
Dimensions with packaging (H x W x D) [mm(in.)] 116.0 mm x 285.0 mm x 300.0 mm (4.57 in. x 11.22 in. x 11.81 in.)
Chassis height [U] 1 U
Chassis material Metal
Weight without packaging [kg(lb)] 1.2 kg (2.65 lb)
Weight with packaging [kg(lb)] 2.36 kg (5.2 lb)
Typical power consumption [W] 16.74 W
Typical heat dissipation [BTU/hour] 57.13 BTU/hour
Maximum power consumption [W]
  • Without PoE: 14.60 W (device), 17.59 W (device + adapter)
  • Full PoE load: 161.02 W (PoE: 128 W)
Maximum heat dissipation [BTU/hour]
  • Without PoE: 49.82 (device), 60.02 (device + adapter)
  • Full PoE load: 549.42
Static power consumption [W] 7.15 W
MTBF [years] 84.12 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 Power adapter
Rated input voltage [V] Power adapter input: 170 V AC to 240 V AC; 50/60 Hz

Power adapter output: 54 V DC
Input voltage range [V] Power adapter input: 170 V AC to 264 V AC; 47 Hz to 63 Hz
Maximum input current [A] 2.78 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] ±4 kV in differential mode and ±4 kV in common mode
Ingress protection level (dustproof/waterproof) IP20
Types of fans None
Heat dissipation mode Natural heat dissipation
Airflow direction –
PoE Supported
Certification EMC certification

Safety certification

Manufacturing certification
FAQ

FAQ

Q: Can this Remote Unit be used as a standalone switch?

A: No. Like all Huawei RU series, the S5751-L8P2J-RUA must be paired with a compatible Huawei central switch. It cannot be managed or configured as a standalone device.

Q: How many PoE+ devices can I connect?

A: With a 124W total budget, you can power up to 4 high-power PoE+ devices (30W each) or 8 standard PoE devices (15.4W each) simultaneously.

Q: What is the benefit of the “-J” in the model name?

A: The “-J” typically signifies regional compliance or specific power input specifications designed for certain market deployments. Always check local power compatibility before ordering.

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Shipping & Delivery

Shipping Incoterms

Fiberolt.com provides the most commonly used incoterms for your shipping.

EXW – Ex Works

We make the cargo available at our factory, or your designated agency and location in China mainland city with free charges.

CIF – Cost, Insurance & Freight

You will receive the cargo in your country with insurance, which is essential for international transportation to guarantee your property security.

DDP – Delivered Duty Paid

Never worry about the custom clearance and duty fees, all charges are included, just wait for the cargo at your gate.

Shipping Ways

To ensure your merchandise arrive safely and timely with the assistance of our reliable international carriers, we have flexible shipping ways by Express, AirCargo, Marine and Road.According to your specific requirement and cargo volumes, our sales representative will offer the most suitable and cost-effective shipping method for you.

Methods

Tools

Time

Destination

DHL/FedEx/UPS/TNT

Airplane

5~7 days

Door to Door

Airway

Airplane

7~10 days

Airport

Marine

Vessel

30~45 days

Seaport

Road

Truck/Train(China-Europe Railway)

Unstable

Assigned Address

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