Description

Huawei CloudEngine S5731-L4P2HT-RUA Remote Unit Switch

Name: Huawei S5731-L4P2HT-RUA | 4-Port PoE+ Remote Unit Switch
Brand: Huawei
SKU: 98011776
Rating: 5.00 (1 reviews)

The Huawei CloudEngine S5731-L4P2HT-RUA is a high-performance, compact remote unit designed for Huawei’s innovative simplified network solution. Unlike traditional switches, this unit works in conjunction with a central switch to provide gigabit data access directly to desktops or rooms, significantly reducing cabling costs and power consumption.

Key Features and Performance

Innovative Architecture: Acts as a remote module managed by a central switch (like the S12700E or S6730-H), requiring zero configuration on the RU itself.
High-Speed Uplink: Features 1 x 1000Base-X (SFP) and 1 x 10/100/1000Base-T combo ports for flexible upstream connectivity.
PoE+ Capability: Equipped with 4 x 10/100/1000Base-T ports supporting IEEE 802.3at PoE+, perfect for powering IP phones, Wi-Fi 6 APs, and IoT devices.
Silent Operation: Fanless design ensures 0 dB noise, making it ideal for offices, hotel rooms, and classrooms.
Ultra-Compact Form Factor: Small enough to be installed in wall-mount boxes or on desktops.

Performance

Forwarding performance: 9Mpps
Switching capacity: 12/120 Gbps

Power Modules and Accessories

The S5731-L4P2HT-RUA is powered by an external AC/DC power adapter. Because it is a “Remote Unit,” it does not support internal modular cards.

Power Adapter: Includes a 100V–240V AC input to 54V DC output adapter.
Mounting Kits: Supports DIN rail mounting, wall mounting, and desk-mount installations.
Optical Transceivers: Compatible with Huawei certified GE SFP modules (Single-mode/Multi-mode).

Related Huawei S5731-L Series Models

S5731-L4P2S-RUA: 4x GE RJ45 (PoE+), 2x GE SFP uplinks.
S5731-L4T2ST-RUA: 4x GE RJ45 (Non-PoE), 1x GE SFP and 1x GE RJ45 uplinks.
S5731-L8P2HT-RUA: 8x GE RJ45 (PoE+), 1x GE SFP and 1x GE RJ45 uplinks.
S5731-L8T2ST-RUA: 8x GE RJ45 (Non-PoE), 1x GE SFP and 1x GE RJ45 uplinks.

Why Choose S5731-L4P2HT-RUA for Your Business?

Lower TCO: Reduces the need for ELV (Extra Low Voltage) rooms by deploying switching power closer to the user.
Energy Efficient: Uses less than 7W of power (excluding PoE output).
Simplified Management: Manage hundreds of RUs as a single logical entity through the central switch.

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 185.0 mm x 115.0 mm (1.5 in. x 7.28 in. x 4.53 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 185.0 mm x 115.0 mm (1.5 in. x 7.28 in. x 4.53 in.)
Dimensions with packaging (H x W x D) [mm(in.)]	82.0 mm x 270.0 mm x 178.0 mm (3.23 in. x 10.63 in. x 7.01 in.)
Chassis height [U]	0.86 U
Chassis material	Metal
Weight without packaging [kg(lb)]	0.60 kg (1.32 lb)
Weight with packaging [kg(lb)]	0.81 kg (1.79 lb)
Typical power consumption [W]	6.82 W (device) 8.30 W (device + power adapter)
Typical heat dissipation [BTU/hour]	23.27 (device) 28.32 (device + power adapter)
Maximum power consumption [W]	Without PoE: 7.00 W (device)/8.48 W (device + power adapter) Full PoE load: 88.0 W (PoE: 77 W)
Maximum heat dissipation [BTU/hour]	Without PoE: 23.88 (device)/28.94 (device + power adapter) Full PoE load: 300.265
Static power consumption [W]	4.88 W
MTBF [years]	73.98 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]	1.8 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-L4P2HT-RUA

Canpepl – March 13, 2026

Rated 5 out of 5
Safe and sound.I was worried about the long-distance sea freight, but the waterproofing was excellent.

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Methods	Tools	Time	Destination
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Marine	Vessel	30~45 days	Seaport
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