Description

Huawei CloudEngine S5731-L16P2SR-RUA Remote Unit (16-Port PoE+)

Name: Huawei S5731-L16P2SR-RUA | 16-Port PoE+ Gigabit Remote Unit
Brand: Huawei
SKU: 98012157
Rating: 5.00 (1 reviews)

The Huawei CloudEngine S5731-L16P2SR-RUA is a high-density, full-Gigabit remote unit (RU) designed for large-scale enterprise deployments. With 16 x 10/100/1000Base-T PoE+ ports, it provides massive connectivity and power for Wi-Fi 6 APs, IP phones, and IoT devices. As part of Huawei’s Simplified Network Solution, this unit acts as a remote extension of a central switch, drastically reducing the complexity of horizontal cabling.

Key Features

High-Density PoE+ Access: Features 16 x Gigabit Ethernet ports, all supporting IEEE 802.3at PoE+ (up to 30W per port), ideal for powering a dense array of workspace devices.
High-Bandwidth Uplink: Equipped with 2 x GE SFP ports, allowing for redundant optical uplinks to ensure network reliability and long-distance transmission.
Centralized Management: Zero-configuration required. The RU is managed as a virtual board of the central switch (e.g., S6730-H or S12700E), simplifying O&M.
Fanless & Silent: Despite having 16 ports, its advanced thermal design allows for fanless operation, ensuring a 0 dB noise-free environment for open offices.
Space Saving: Consolidates 16 ports into a compact form factor, eliminating the need for multiple small switches or massive cable bundles from the telecommunications closet.

Performance

Forwarding performance: 27Mpps
Switching capacity: 36/120 Gbps

Power Solutions & Compatibility

The S5731-L16P2SR-RUA is powered by an external DC power source to maintain its slim, fanless profile:

External Power Supply: Requires a 54V DC input. For full 16-port PoE+ loading, a high-wattage AC/DC adapter is recommended.
SFP Transceivers: Compatible with Huawei GE Optical Modules (e-SFP-GE-SX-MM850, SFP-GE-LX-SM1310, etc.).
Installation: Supports flexible mounting options, including desktop, wall-mount, and rack-mount (with optional kits).

Why Choose the 16-Port S5731-L16P2SR-RUA?

Cabling Efficiency: One “Fiber-to-the-Room” link provides 16 GE ports, saving up to 80% on copper cabling costs.
Massive Scale: Perfect for environments like training centers, large conference rooms, and modern open-plan offices.
Low TCO: Lower energy consumption and zero independent management software licenses significantly reduce the Total Cost of Ownership.

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 442.0 mm x 260.0 mm (1.72 in. x 17.40 in. x 10.24 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 442.0 mm x 267.0 mm (1.72 in. x 17.40 in. x 10.51 in.)
Dimensions with packaging (H x W x D) [mm(in.)]	90.0 mm x 555.0 mm x 400.0 mm (3.54 in. x 21.85 in. x 15.75 in.)
Chassis height [U]	1 U
Chassis material	Metal
Weight without packaging [kg(lb)]	3.01 kg (6.64 lb)
Weight with packaging [kg(lb)]	3.65 kg (8.05 lb)
Typical power consumption [W]	16.42 W
Typical heat dissipation [BTU/hour]	56.03 BTU/hour
Maximum power consumption [W]	Without PoE: 16.7 W Full PoE load: 160.45 W (PoE: 125 W)
Maximum heat dissipation [BTU/hour]	Without PoE: 56.98 Full PoE load: 547.47
Static power consumption [W]	9.28 W
MTBF [years]	78.68 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	AC built-in
Rated input voltage [V]	AC input: 100–240 V AC; 50/60 Hz
Input voltage range [V]	AC input: 90 V AC to 300 V AC; 47 Hz to 63 Hz
Maximum input current [A]	3 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]	Differential mode: ±6 kV; common mode: ±6 kV
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-L16P2SR-RUA

Ponansea – March 16, 2026

Rated 5 out of 5
5 stars for logistics.Arrived in Germany in 5 days, perfectly sealed and protected.

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