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S5751-L8P2HJ-RUA

S5751-L8P2HJ-RUA (8*10/100/1000BASE-T ports (PoE+), 2*Hybrid 2.5G SFP ports, PoE via hybrid cable, Fanless)

Brand

Huawei
Port

8
Rate

GE
Quote now
SKU: 98012493 Category:
Description

Huawei S5751-L8P2HJ-RUA: Enhanced 8-Port Gigabit PoE+ Remote Unit

The Huawei S5751-L8P2HJ-RUA is an enterprise-grade, enhanced Remote Unit (RU) designed for Huawei’s High-Quality Simplified Network Architecture. Featuring the advanced “HJ” performance tier, this unit delivers robust Gigabit PoE+ power and data transmission directly to the network edge. It is the ultimate choice for smart offices, digital classrooms, and luxury hospitality networks seeking zero maintenance and high stability.

Interface & Power Supply Configuration

  • PoE+ Downlink Ports: 8 x 10/100/1000Base-T Ethernet ports (Fully compliant with IEEE 802.3at/af).

  • Uplink Ports: 2 x GE SFP optical slots (For reliable, long-distance fiber backhaul to the central switch).

  • PoE Budget: Delivers a reliable total budget of up to 124W (providing up to 30W per single port).

Key Advantages of the S5751-L8P2HJ-RUA

1. Enhanced “HJ” Enterprise Performance

The “HJ” designation marks this model as part of the enhanced capability family. It features upgraded hardware components that offer superior concurrent data processing and greater power efficiency, ensuring that your connected PoE devices remain online and stable even under heavy network traffic.

2. High-Output PoE+ Capability

Say goodbye to messy power cables and local adapters. The S5751-L8P2HJ-RUA seamlessly powers high-performance edge devices, including Wi-Fi 6 Access Points (APs), pan-tilt-zoom (PTZ) IP cameras, biometric access control terminals, and VoIP phones.

3. Plug-and-Play (Zero Configuration Deployment)

Operating as a remote extension card for your core infrastructure, this RU requires zero local management or independent IP configuration. Simply connect the fiber uplink, and the central switch automatically synchronizes all VLAN, security, and QoS policies.

4. 0dB Absolute Silence

Engineered with an advanced fanless, natural heat dissipation casing, the unit operates with zero fan noise. This makes it ideal for installation inside quiet environments such as executive boardrooms, hospital rooms, and school libraries.

Core System Compatibility

To operationalize the S5751-L8P2HJ-RUA, it must be deployed alongside a compatible Huawei Central Switch:

  • CloudEngine S5731-H Series

  • CloudEngine S6730-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 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 225.0 mm (4.57 in. x 11.22 in. x 8.86 in.)
Chassis height [U] 1 U
Chassis material Metal
Weight without packaging [kg(lb)] 1.21 kg (2.67 lb)
Weight with packaging [kg(lb)] 1.7 kg (3.75 lb)
Typical power consumption [W]
  • 16.74 W (via a power adapter)
  • 13.14 W (via a hybrid cable)
Typical heat dissipation [BTU/hour]
  • 57.13 (via a power adapter)
  • 44.82 (via a hybrid cable)
Maximum power consumption [W] Power adapter:

  • Without PoE: 14.60 W (device), 17.59 W (device + adapter)
  • Full PoE load: 162.05 W (PoE: 128 W)

94.5 W PoE power over the hybrid cable:

  • Without PoE: 17.57 W
  • Full PoE load: 91.97 W (PoE: 70 W)

71.3 W PoE power over the hybrid cable:

  • Without PoE: 17.57 W
  • Full PoE load: 70.38 W (PoE: 50 W)
Maximum heat dissipation [BTU/hour] Power adapter:

  • Without PoE: 49.82 (device), 60.02 (device + adapter)
  • Full PoE load: 552.93

94.5 W PoE power over the hybrid cable:

  • Without PoE: 59.96
  • Full PoE load: 313.80

71.3 W PoE power over the hybrid cable:

  • Without PoE: 59.96
  • Full PoE load: 240.16
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 The uplink hybrid optical-electrical port and adapter back up each other. The power adapter is not provided by default and can be purchased as required.

02222067: white, 220 V PoE power adapter

02221024: black, 110 V/220 V PoE power adapter
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
  • PoE_IN
Rated input voltage [V] Power adapter HW-560268D0D (02221024):

  • Power adapter input: 100 V AC to 240 V AC; 50/60 Hz
  • Power adapter output: 56 V DC

Power adapter AD-540278D0D (02222067):

  • Power adapter input: 170 V AC to 240 V AC; 50/60 Hz
  • Power adapter output: 54 V DC

Hybrid cable (PoE): 56 V DC
Input voltage range [V] Power adapter HW-560268D0D (02221024):

– Power adapter input: 90 V AC to 290 V AC; 47 Hz to 63 Hz

Power adapter AD-540278D0D (02222067):

– Power adapter input: 170 V AC to 264 V AC; 47 Hz to 63 Hz

Hybrid cable (PoE): 54 V DC to 57 V DC
Maximum input current [A] 2.68 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] Power adapter HW-560268D0D (02221024):

– ±6 kV in differential mode and ±6 kV in common mode

Power adapter AD-540278D0D (02222067):

– ±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: What makes the “HJ” version different from standard Huawei Remote Units?

A: The HJ (Enhanced) tier indicates optimized hardware architecture designed for higher reliability, stable power delivery, and enhanced processing performance at the access layer compared to entry-level RUs.

Q: Can this unit power outdoor high-power PTZ cameras?

A: Yes. It supports IEEE 802.3at (PoE+) with up to 30W per port. As long as the total power consumption of all connected devices stays within the 124W budget, it will run perfectly.

Q: Is the power adapter included with the S5751-L8P2HJ-RUA?

A: Depending on the batch and regional configuration, power setups may vary. Please contact our sales team directly to confirm if the matching industrial power adapter is included in your quote or needs to be ordered separately.

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Shipping & Delivery

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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

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Shipping Ways

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Methods

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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

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Unstable

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