Description

Huawei CloudEngine S5731-L8P2HT-RUA Remote Unit Switch (8-Port PoE+)

Name: Huawei S5731-L8P2HT-RUA | 8-Port Gigabit PoE+ Remote Unit
Brand: Huawei
SKU: 98011782
Rating: 5.00 (1 reviews)

The Huawei CloudEngine S5731-L8P2HT-RUA is a premium, high-density Gigabit Remote Unit (RU) that redefines network expansion. Designed for Huawei’s CloudCampus 3.0 simplified architecture, this unit provides 8 Gigabit PoE+ ports to power high-bandwidth devices while maintaining a completely silent, fanless operation. It is the perfect solution for extending connectivity from a central switch to high-density areas without the need for additional ELV rooms.

Key Advantages

High-Density PoE+ Delivery: All 8 downlink ports support IEEE 802.3at PoE+, capable of powering a full suite of Wi-Fi 6 APs, PTZ cameras, and smart lighting.
Flexible GE Uplinks: Features 1 x 1000Base-X (SFP) and 1 x 10/100/1000Base-T combo ports, allowing for long-distance fiber or local copper uplinks.
Zero-Configuration Management: As a Remote Unit, it requires no independent configuration. It is automatically virtualized as a service card of the central switch, reducing O&M costs by up to 80%.
Eco-Friendly & Silent: The fanless design ensures 0 dB noise pollution and extremely low power consumption, ideal for “Green Building” certifications.
Rapid Deployment: Ultra-slim design allows for easy installation in ceiling voids, wall-mount boxes, or under desks.

Performance

Forwarding performance: 15Mpps
Switching capacity: 12/120 Gbps

Power Modules & Accessories

The S5731-L8P2HT-RUA relies on external power to maintain its compact form factor:

High-Power Adapters: Recommended for use with Huawei 150W or 240W DC power adapters to ensure maximum PoE budget across all 8 ports.
Mounting Options: Includes brackets for versatile mounting (Wall, DIN rail, or Desktop).
Transceiver Compatibility: Supports all standard Huawei GE SFP optical modules (Short-reach MM and Long-reach SM).

Why Choose S5731-L8P2HT-RUA?

Eliminate Access Switches: Replace bulky traditional access switches with these sleek, zero-config remote units.
Simplify Cabling: Run one fiber cable to the room instead of eight copper cables from the data center.
Reliability: Industrial-grade heat dissipation ensures long-term stability even in enclosed spaces.

Specification

Item	Specification
Dimensions without packaging (H x W x D) [mm(in.)]	Basic dimensions (excluding the parts protruding from the body): 38.0 mm x 210.0 mm x 130.0 mm (1.5 in. x 8.27 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): 38.0 mm x 210.0 mm x 130.0 mm (1.5 in. x 8.27 in. x 5.12 in.)
Dimensions with packaging (H x W x D) [mm(in.)]	82.0 mm x 275.0 mm x 196.0 mm (3.23 in. x 10.83 in. x 7.72 in.)
Chassis height [U]	0.86 U
Chassis material	Metal
Weight without packaging [kg(lb)]	0.75 kg (1.65 lb)
Weight with packaging [kg(lb)]	0.94 kg (2.07 lb)
Typical power consumption [W]	8.82 W (device) 10.82 W (device + power adapter)
Typical heat dissipation [BTU/hour]	30.09 (device) 36.92 (device + power adapter)
Maximum power consumption [W]	Without PoE: 9.60 W (device)/11.60 W (device + power adapter) Full PoE load: 146 W (PoE: 131 W)
Maximum heat dissipation [BTU/hour]	Without PoE: 32.76 (device)/39.58 (device + power adapter) Full PoE load: 498.17
Static power consumption [W]	5.6 W
MTBF [years]	71.36 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	Cold backup of uplink hybrid optical-electrical ports or electrical ports and power adapters, cold backup of uplink hybrid optical-electrical ports and electrical ports, and preferential power supply by power adapters (By default, no power adapter is provided, and the power adapter 02221024 can be used.)
Long-term operating temperature [°C(°F)]	-5°C to +45°C (23°F to 113°F) at an altitude of 0-1800 m (0-5906 ft.)
Restriction on the operating temperature variation rate [°C(°F)]	When the altitude is 1800-5000 m (5905.44-16404 ft.), the highest operating temperature reduces by 1°C (1.8°F) every time the altitude increases by 220 m (721.78 ft.). The device cannot start when the temperature is lower than 0°C (32°F). The operating temperature of a device ranges from -5°C to +45°C (23°F to 113°F) when the device uses the following optical modules: – GE optical modules with a transmission distance of less than or equal to 10 km
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 input: 100–240 V AC; 50/60 Hz PoE input: 56 V DC
Input voltage range [V]	Power adapter input: 90–290 V AC; 47–63 Hz PoE input: 54–57 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
Service port surge protection [kV]	Common mode: ±6 kV
Power supply surge protection [kV]	Power adapter: ±6 kV in differential mode and ±6 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

Reviews (1)

1 review for S5731-L8P2HT-RUA

Hiphin – March 20, 2026

Rated 5 out of 5
Reliable L3 routing.The hardware-based routing table is large enough to handle our complex VLAN structure easily.

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