Huawei CloudEngine S5731-L4 is a series of Gigabit remote unit switches featuring full GE access ports and GE SFP uplink ports. Some models also provide additional gigabit optical or electrical interfaces to meet different networking requirements.
S5731-L4 series includes several models such as S5731-L4P2HW-RUA, S5731-L4P2HT-RUA, S5731-L4T2S-RUA, S5731-L4P2S-RUA, S5731-L4T2ST-RUA, and S5731-L4P2ST-RUA.
Although these model names look very similar, the differences are mainly reflected in port types and PoE capability.
In general:
“P” indicates the switch supports PoE, allowing it to power devices such as IP phones, wireless APs, or cameras.
“T” means the switch provides electrical (RJ45) Ethernet ports.
“S” represents SFP optical ports for fiber uplink connections.
“H” usually indicates Hybrid uplink ports.
Generally means the switch supports a combination of electrical (RJ45) and optical (SFP) uplink interfaces, providing more flexibility for different cabling environments.
“W” usually indicates a wide-range power supply version.
This means the device supports a broader input voltage range, making it suitable for different power supply environments.
“RU”=Remote Unit
“A” indicates the hardware/region version of the switch, does not affect the port configuration or main functions.
Because of these small variations in letters, each model offers a slightly different combination of electrical ports, optical ports, and PoE support, allowing users to choose the most suitable switch for different deployment scenarios.
In simple terms, the core functions of the S5731-L4 series are the same, while the main differences lie in the interface types and whether PoE is supported. This naming method helps users quickly identify the port configuration of each model.
S5731-L4P2S for example:
4P → 4-port PoE electrical
2S → 2-port GE SFP optical
S5731-L4T2S for example:
4T → 4 -port electrical, not POE supported
2S → 2-port GE SFP optical
Below is a simple and easy-to-understand comparison table for the S5731-L4 series models.
| Product Model | S5731-L4P2HW-RUA | S5731-L4P2HT-RUA | S5731-L4T2S-RUA | S5731-L4P2S-RUA | S5731-L4T2ST-RUA | S5731-L4P2ST-RUA |
| Forwarding Performance | 11.25 Mpps | 11.25 Mpps | 11.25 Mpps | 11.25 Mpps | 11.25 Mpps | 11.25 Mpps |
| Switching Capacity | 52 Gbit/s | 52 Gbit/s | 52 Gbit/s | 52 Gbit/s | 52 Gbit/s | 52 Gbit/s |
| Uplink Ports | 1 x GE SFP (hybrid), 1 x GE/2.5GE SFP (hybrid) | 1 x GE/2.5GE SFP (hybrid), 1 x 10/100/1000 Base-T Ethernet port | 1 x GE SFP (built-in SC optical module), 1 x GE/2.5GE SFP | 1 x GE SFP (built-in SC optical module), 1 x GE/2.5GE SFP | 1 GE/2.5GE SFP, 1 x 10/100/1000 Base-T Ethernet ports | 1 GE/2.5GE SFP, 1 x 10/100/1000 Base-T Ethernet ports |
| Downlink Ports | 4 x 10/100/1000 Base-T Ethernet ports | 4 x 10/100/1000 Base-T Ethernet ports | 4 x 10/100/1000 Base-T Ethernet ports | 4 x 10/100/1000 Base-T Ethernet ports | 4 x 10/100/1000 Base-T Ethernet ports | 4 x 10/100/1000 Base-T Ethernet ports |
| Power Supply Type | AC/DC adapter or optical-electrical PoE | AC/DC adapter, PoE or optical-electrical PoE | AC/DC adapter | AC/DC adapter | AC/DC adapter | AC/DC adapter |
| PoE++ | PoE++ | PoE++ | N/A | PoE++ | N/A | PoE++ |
In summary, although the S5731-L4 series models have very similar names, the differences mainly lie in port types and PoE capability. By understanding the meaning of the letters in the model name, users can quickly identify the port configuration and choose the most suitable device for their network deployment.
Designed for flexible and simplified access networking, the S5731-L4 remote unit switches provide reliable gigabit connectivity for scenarios such as offices, hotels, campuses, and healthcare environments. With different port combinations available, enterprises can easily build a scalable, efficient, and future-ready network infrastructure based on their specific requirements.
