The Huawei S5735-L24T4X-A1 is a compact, high-density campus switch positioned in the S5700 family. It is designed for access-layer and aggregation scenarios that require a mix of Gigabit copper ports and high-speed 10Gb SFP+ uplinks, making it suitable for campus wiring closets, small data closets, and edge switch deployments.

Design and Physical Layout

Front-panel and Connectors

The S5735-L24T4X-A1 features 24 10/100/1000BASE-T RJ45 ports on the front panel plus four 10GE SFP+ optical uplink ports. Also on the front you’ll find an RJ45 console port, a USB 2.0 Type-A port for file transfer and upgrades, and a PNP (push-to-reset) button. The device is 1 U in height and built with a metal chassis for rack mounting.

Hardware Components

Internal architecture

Internally the switch contains a single built-in AC power module and one built-in fan for forced air cooling. It does not support hot-swappable power or fan modules; the thermal design expects airflow from the left/front to the right exhaust. The appliance is intended for quiet desktop-class operation under normal temperatures, though fan noise may rise during startup.

Key Technical Specifications

Below are the concise technical highlights extracted and normalized from the official hardware description:

▪ Description: S5735-L24T4X-A1 (24*10/100/1000BASE-T ports, 4*10GE SFP+ ports, AC power)
▪ Part Number: 98011302
▪ Model: S5735-L24T4X-A1
▪ First supported version: V200R020C10
▪ Dimensions (without packaging): 43.6 mm × 442.0 mm × 220.0 mm (basic) / 227.0 mm (maximum depth)
▪ Weight (without packaging): 2.54 kg (5.6 lb)
▪ Typical power consumption: 33.2 W
▪ Maximum power consumption: 45.6 W
▪ MTBF: 62.05 years (availability > 0.99999)
▪ Operating temperature: -5°C to +50°C (standard optical modules); ranges vary with module types and altitude
▪ Memory / Flash: 512 MB RAM, 512 MB flash
▪ Ports: 24 × 10/100/1000BASE-T RJ45, 4 × 10GE SFP+ optical ports
▪ Console / USB: RJ45 console port; USB 2.0 Type-A (supports up to 128 GB, vendor dependent)
▪ PoE: Not supported on this model
▪ Ingress protection: IP20

Key Features

▪ 24 Gigabit copper access ports paired with four 10Gb SFP+ uplinks — provides flexible aggregation for denser access deployments.
▪ Rack-mountable 1U metal chassis with small depth — fits constrained wiring closets and small racks.
▪ Built-in AC power and single fan design — simplifies cabling and reduces field replaceable module complexity.
▪ USB port for local upgrades and file transfers — convenient for field maintenance and offline upgrades.
▪ Console RJ45 for on-site CLI access — standard for troubleshooting and initial configuration.
▪ Intelligent fan control with predictable noise profile — desktop-class noise during normal operation and higher fan speeds at startup.

Performance and Capacity

Throughput and forwarding

The S5735-L24T4X-A1 uses Gigabit access ports combined with 10Gb SFP+ uplinks to provide a high-bandwidth aggregation path for connected endpoints and access switches. With four SFP+ ports available, administrators can design redundant uplinks to distribution or data center aggregation layers. Typical and maximum power numbers (33.2 W typical, 45.6 W max) help when calculating branch or closet power budgets.

Power, Heat Dissipation and Environmental Limits

Power and thermal profile

The device’s rated AC input accommodates a wide range (90–264 V AC), and the switch also lists high-voltage DC ranges (88–300 V DC) for certain installations. Heat dissipation values (typical 113.28 BTU/hr, max 155.59 BTU/hr) and the built-in fan’s airflow direction must be considered during rack planning to avoid hot spots. Operating temperature tolerances expand or restrict depending on the optical modules used and installation altitude — the official guide includes specific derating rules with altitude increases.

Deployment Scenarios and Best Uses

Campus access and branch aggregation

Given the mix of Gigabit copper ports and 10Gb uplinks, the S5735-L24T4X-A1 is well suited as an access switch for medium-density workspaces, IP telephony closets, wireless AP aggregation points, and small branch PoE-free deployments. Its 1U form factor and relatively low power consumption make it attractive where rack space and power are constrained. For environments requiring PoE, consider the S5735-L24P4X variants instead (the L24T4X model does not provide PoE).

Management, Maintenance and Compatibility

Software and system integration

The S5735 family runs Huawei’s S5700 series software images; the specific model lists the first supported software release (V200R020C10). Administrators should verify supported software versions before downgrading or upgrading, since some models may have component-level upgrades that prevent downgrades. The USB port supports local image upgrades and configuration file transfers, and the console port supports standard on-site CLI access.

Cooling, Acoustic and Physical Considerations

Noise and airflow

The device meets desktop-class noise requirements at normal operating temperature, but the fan may run faster (and louder) during startup or under high thermal load. Air intake is from the left/front with exhaust to the right — plan rack orientation accordingly to avoid blocked vents or recirculation. The switch is not intended for outdoor or industrial dust/water exposure (IP20).

Compatibility with Optics and Cables

Supported modules and transceivers

The official hardware document lists compatible GE/10GE SFP and SFP+ optical modules as well as supported SFP copper and AOC cables (including 1 m/3 m SFP+ copper and 3 m/10 m SFP+ AOC). Note that certain high-distance or industrial modules impose additional operating temperature constraints; always confirm the optical module part numbers against the compatibility list for performance and warranty considerations.

Planning Checklist Before Purchase

Pre-purchase validations

▪ Ensure the model’s lack of PoE matches your endpoint power needs; choose a PoE variant if needed.
▪ Check software image compatibility for your planned feature set and confirm whether the unit’s part number (98011302) matches procurement records for regional variants (for India/Pakistan there is a -001 variant).
▪ Validate rack depth, airflow direction, and acoustic constraints for the intended closet or workspace.
▪ Plan for uplink capacity: four SFP+ ports provide design flexibility but evaluate port-channel and redundancy requirements.

Conclusion

The Huawei S5735-L24T4X-A1 is a compact, efficient, and practical campus/edge switch offering 24 Gigabit copper ports and four 10Gb SFP+ uplinks in a 1U package. It fits use cases where high-density Gigabit access plus a handful of 10Gb aggregation ports are required, while keeping power and rack space usage modest. For environments that require PoE or modular power redundancy, other models in the S5735 family should be considered. Before deployment, verify software compatibility, optical module selections, and physical installation constraints against the official hardware document.

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