The S5735-S48S4X is a high-density enterprise-class access switch from Huawei S5735-S Series. Designed for modern campus networks, data aggregation environments, and enterprise access layers, this switch delivers a combination of high port density, flexible optical connectivity, advanced management capabilities, and reliable performance. With 48 100/1000BASE-X ports and four 10GE SFP+ uplink ports, the S5735-S48S4X is particularly suitable for organizations requiring extensive fiber connectivity and scalable network infrastructure.

As part of Huawei’s widely deployed S5700 Series, the S5735-S48S4X provides strong switching capabilities, flexible deployment options, redundant power support, and comprehensive management interfaces. It is designed to support growing enterprise requirements while maintaining high reliability and operational efficiency.

Key Features of the S5735-S48S4X

The S5735-S48S4X incorporates a variety of enterprise-grade features that make it suitable for demanding networking environments.

▪ High-density fiber access with 48 100/1000BASE-X interfaces.
▪ Four 10GE SFP+ uplink ports for high-speed backbone connectivity.
▪ Support for flexible optical and copper modules.
▪ Dual power module slots for power redundancy.
▪ Integrated USB port for software upgrades and file transfer.
▪ Dedicated management interfaces including Console and ETH management ports.
▪ Stack capability through service ports and uplink interfaces.
▪ High availability with greater than 99.999% system availability.
▪ Enterprise-class security and management functions.
▪ Efficient cooling system with built-in intelligent fan design.

Hardware Architecture and Design

The physical design of the S5735-S48S4X emphasizes flexibility, scalability, and operational reliability. The switch utilizes a compact 1U rack-mounted chassis that can easily fit into standard enterprise and data center racks.

The front panel contains 48 fiber access ports and four 10 Gigabit uplink ports, allowing network administrators to deploy high-speed fiber connections while maintaining future expansion possibilities. The rear section houses redundant power supply slots and cooling mechanisms that contribute to overall system reliability.

The device is designed for continuous operation in enterprise environments where uptime is a critical requirement.

Front Panel Components

The front panel includes several essential interfaces and management features:

▪ Forty-eight 100/1000BASE-X fiber ports.
▪ Four 10GE SFP+ uplink ports.
▪ Console management port.
▪ ETH management port.
▪ USB interface.
▪ PNP reset and deployment button.
▪ Status indicators and system LEDs.

Port Configuration and Connectivity

The S5735-S48S4X is designed to deliver exceptional flexibility through its extensive port configuration. The switch supports both access-layer and aggregation-layer deployments thanks to its combination of Gigabit and 10 Gigabit interfaces.

The 48 access ports support a wide range of optical modules, allowing organizations to choose the most appropriate connectivity options for their network requirements.

100/1000BASE-X Access Ports

The switch includes 48 optical interfaces that support both Fast Ethernet and Gigabit Ethernet transmission rates. These ports provide auto-sensing functionality, enabling operation at either 100 Mbps or 1000 Mbps.

Supported module types include:

▪ FE optical modules.
▪ GE optical modules.
▪ GE-CWDM optical modules.
▪ GE-DWDM optical modules.
▪ GE copper modules.

This flexibility enables deployment across multiple enterprise networking scenarios.

10GE SFP+ Uplink Ports

The four SFP+ uplink interfaces provide high-bandwidth connectivity to aggregation switches, core switches, or data center infrastructure.

These ports support:

▪ 1 Gigabit Ethernet operation.
▪ 10 Gigabit Ethernet operation.
▪ Optical transceivers.
▪ Direct-attach copper cables.
▪ Active optical cables.
▪ Stacking cables.

This versatility allows organizations to build scalable and future-ready network architectures.

Management Interfaces

Efficient management is essential for enterprise networking equipment. The S5735-S48S4X provides multiple methods for local and remote administration.

Console Port

The RJ45 console port allows direct access to the switch for initial setup, troubleshooting, and maintenance activities. It supports RS-232 communication and standard UART operation.

Supported baud rates include:

▪ 9600 bps.
▪ 19200 bps.
▪ 38400 bps.
▪ 57600 bps.
▪ 115200 bps.

ETH Management Port

The dedicated Ethernet management port provides faster remote management and software transfer capabilities than traditional console access.

This interface supports:

▪ 10 Mbps operation.
▪ 100 Mbps operation.
▪ Local management.
▪ Remote administration.
▪ Software package downloads.

The dedicated management channel improves security and simplifies administrative tasks.

USB Interface

The integrated USB 2.0 port enables convenient software upgrades, configuration backup, and file transfers.

Administrators can use USB storage devices to:

▪ Upgrade system software.
▪ Save configuration files.
▪ Transfer logs.
▪ Store maintenance data.

The switch supports USB flash drives with capacities up to 128 GB.

Power Supply and Redundancy

Power reliability is a critical requirement in enterprise environments. The S5735-S48S4X addresses this need through dual power module slots that support 1+1 redundancy.

Organizations can deploy a single power module for standard operations or install two power modules for increased availability.

Supported Power Modules

The switch supports several power module options.

▪ PAC150S12-R AC Power Module.
▪ PDC1000S12-DB DC Power Module.
▪ PDC180S12-CR DC Power Module.

The ability to support both AC and DC power environments increases deployment flexibility.

Cooling and Heat Dissipation

The S5735-S48S4X utilizes a forced-air cooling design to maintain optimal operating temperatures.

Three built-in cooling fans provide consistent airflow throughout the chassis. Air enters through the front and side sections and exits through the rear panel.

This cooling architecture helps ensure long-term reliability even in demanding enterprise environments with continuous operation.

Stacking Capabilities

Modern enterprise networks often require simplified management and increased scalability. The S5735-S48S4X supports stacking functionality, enabling multiple switches to operate as a single logical unit.

Stacking provides several operational benefits:

▪ Simplified management.
▪ Increased bandwidth.
▪ Improved redundancy.
▪ Easier network expansion.
▪ Centralized configuration.

The switch supports stacking through compatible Gigabit and 10 Gigabit interfaces.

Technical Specifications

The following technical specifications highlight the capabilities of the S5735-S48S4X.

▪ Ports:  48 x 100/1000BASE-X ports and 4 x 10GE SFP+ uplink ports.
▪ Memory (RAM):  1 GB.
▪ Flash Memory:  512 MB.
▪ Availability:  Greater than 99.999%.
▪ MTBF:  66.33 years.
▪ Stacking Support:  Supported.
▪ RTC:  Supported.
▪ RPS:  Not supported.
▪ PoE:  Not supported.
▪ Maximum Power Consumption:  89 W.
▪ Typical Power Consumption:  67 W.
▪ Operating Temperature:  -5°C to +50°C.
▪ Storage Temperature:  -40°C to +70°C.
▪ Humidity Range:  5% to 95% non-condensing.
▪ Operating Altitude:  Up to 5000 meters.
▪ Dimensions:  43.6 mm x 442.0 mm x 420.0 mm.
▪ Maximum Dimensions:  43.6 mm x 442.0 mm x 444.2 mm.
▪ Weight:  8.27 kg with packaging.

Environmental Specifications

The S5735-S48S4X is engineered to operate reliably across a broad range of environmental conditions.

The device supports standard enterprise environments as well as installations located at higher altitudes. Temperature compensation mechanisms ensure stable operation under varying conditions.

These environmental capabilities make the switch suitable for offices, campuses, industrial facilities, and remote infrastructure deployments.

Reliability and Availability

High availability is one of the key strengths of the S5735-S48S4X. The switch delivers an availability rating exceeding 99.999%, making it suitable for mission-critical network deployments.

Features contributing to reliability include:

▪ Redundant power support.
▪ Enterprise-grade hardware design.
▪ High MTBF value.
▪ Advanced cooling system.
▪ Flexible management interfaces.
▪ Stacking support for redundancy.

These capabilities help minimize downtime and maintain business continuity.

Security and Network Management Benefits

The S5735-S48S4X is designed to integrate seamlessly into enterprise management frameworks. Dedicated management interfaces simplify administration while maintaining operational security.

Network administrators benefit from centralized control, simplified software upgrades, secure remote access, and comprehensive monitoring capabilities.

The dedicated ETH management port separates administrative traffic from production traffic, improving both security and performance.

Deployment Scenarios

The flexibility of the S5735-S48S4X enables deployment across a wide range of enterprise networking environments.

Campus Networks

The high density of fiber ports makes the switch ideal for campus access networks where extensive optical connectivity is required.

Enterprise Access Layer

The switch can serve as a high-capacity access switch for office buildings, business campuses, and corporate headquarters.

Aggregation Environments

With four 10 Gigabit uplinks, the device can aggregate traffic from multiple access switches and connect efficiently to core infrastructure.

Industrial and Government Networks

Its robust environmental specifications and high reliability make it suitable for industrial, educational, healthcare, and government networking environments.

Conclusion

The S5735-S48S4X is a powerful and versatile enterprise switch designed for organizations that require extensive fiber connectivity, high reliability, and scalable network performance. With 48 100/1000BASE-X ports, four 10GE SFP+ uplinks, dual power supply support, stacking capabilities, and comprehensive management interfaces, the switch provides an excellent foundation for modern enterprise networks.

Its strong availability rating, flexible deployment options, enterprise-grade hardware design, and support for a broad range of optical modules make the S5735-S48S4X a valuable solution for campus networks, enterprise access layers, and network aggregation applications. Organizations seeking a dependable fiber-focused access switch can confidently consider the S5735-S48S4X as part of their long-term network infrastructure strategy.

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S5735-S48S4X

Version Mapping

Table 4-1443 lists the mapping between the S5735-S48S4X chassis and software versions.

Table 4-1443 Version mapping

Series	Model	Software Version
S5735-S	S5735-S48S4X	V200R019C00 to V200R024C00 versions NOTE: V200R021C01 is not supported.

Appearance and Structure

Figure 4-539 S5735-S48S4X appearance

1	Forty-eight 100/1000BASE-X ports Applicable modules: FE optical module GE optical module GE-CWDM optical module GE-DWDM optical module GE copper module (works at 10 Mbit/s, 100 Mbit/s, or 1000 Mbit/s)	2	Four 10GE SFP+ ports Applicable modules and cables: GE optical module GE-CWDM optical module GE-DWDM optical module GE copper module (100M/1000M auto-sensing) 10GE SFP+ optical module (OSXD22N00 not supported) 10GE-CWDM optical module 10GE-DWDM optical module 1 m and 3 m SFP+ high-speed copper cables 3 m and 10 m SFP+ AOC cables 0.5 m and 1.5 m SFP+ dedicated stack copper cables (used for zero-configuration stacking, applicable in V200R019C10 and later versions)
3	One console port	4	One ETH management port
5	One USB port	6	One PNP button NOTICE: To restore the factory settings and reset the switch, hold down the button for at least 6 seconds. To reset the switch, press the button. Resetting the switch will cause service interruption. Exercise caution when you press the PNP button.
7	Ground screw NOTE: It is used with a ground cable.	8	Power module slot 1 NOTE: Applicable power module: PAC150S12-R (150 W AC Power Module) PDC1000S12-DB (1000 W DC Power Module) PDC180S12-CR (180 W DC Power Module) (applicable in V200R020C00 and later versions)
9	Power module slot 2 NOTE: Applicable power module: PAC150S12-R (150 W AC Power Module) PDC1000S12-DB (1000 W DC Power Module) PDC180S12-CR (180 W DC Power Module) (applicable in V200R020C00 and later versions)	-	-

Port Description

100/1000BASE-X port

A 100/1000BASE-X port can send and receive data at 100 Mbit/s or 1000 Mbit/s. Table 4-1444 describes the attributes of a 100/1000BASE-X port.

Table 4-1444 Attributes of a 100/1000BASE-X port

Attribute	Description
Connector type	LC/PC
Optical interface attributes	Depend on the optical module used
Standards compliance	IEEE802.3z
Working mode	100/1000 Mbit/s auto-sensing

10GE SFP+ port

A 10GE SFP+ Ethernet optical port supports auto-sensing to 1000 Mbit/s. It sends and receives service data at 1000 Mbit/s or 10 Gbit/s. Table 4-1445 describes the attributes of a 10GE SFP+ Ethernet optical port.

Table 4-1445 Attributes of a 10GE SFP+ port

Attribute	Description
Connector type	LC/PC
Optical port attributes	Depend on the optical module used
Standards compliance	IEEE802.3ae
Working mode	GE/10GE auto-sensing

Console port

The console port is connected to a console for on-site configuration. The port must use a console cable. The console port is used when a switch is powered on for the first time. For details about the attributes of a console port, see Table 4-1446.

Table 4-1446 Attributes of a console port

Attribute	Description
Connector type	RJ45
Standards compliance	RS-232
Working mode	Duplex Universal Asynchronous Receiver/Transmitter (UART)
Baud rate	9600 bit/s, 19200 bit/s, 38400 bit/s, 57600 bit/s, or 115200 bit/s Default value: 9600 bit/s

ETH management port

You can connect a switch to a configuration terminal or network management workstation through the ETH management port to configure the switch locally or remotely. The port must use an Ethernet cable. You can choose to download the software package through the ETH management port in the BootLoad menu. File transfer through the ETH management port is faster than transfer through the console port. Table 4-1447 describes the attributes of an ETH management port.

Table 4-1447 Attributes of an ETH management port

Attribute	Description
Connector type	RJ45
Standards compliance	IEEE802.3
Working Mode	10/100 Mbit/s auto-sensing
Maximum transmission distance	100 m

In V200R012C00 and later versions, you can log in to the switch that contains the ETH management port for the first time through the ETH port. For details, see "First Login to a Switch" in the Configuration Guide - Basic Configuration. If you have logged in to the switch for the first time by pressing and holding the MODE button for 6 seconds or longer and saved the configuration, the default configuration on the ETH port will be cleared. In this case, you cannot log in to the switch for the first time through the ETH port. You are advised to log in to the switch for the first time through the ETH port.

USB port

The USB port can have a USB flash drive connected to upgrade the switch, or transfer configuration files or other files. The USB port can only connect to a USB flash drive that complies with USB 2.0.

USB flash drives from different vendors differ in model compatibility and drivers. If a USB flash drive cannot be used, try to replace it with another one from a mainstream vendor. Switches support a maximum of 128 GB USB flash drives.

Indicator Description

The S5735-S48S4X has similar indicators to those on the S5735-S24P4X except that the S5735-S48S4X does not have a PoE mode indicator. For details, see Indicator Description.

Power Supply Configuration

The switch can use a single power module or double power modules for 1+1 power redundancy. Pluggable AC and DC power modules can be used together in the same switch. However, the power modules with natural heat dissipation and the power modules with fan cannot be used at the same time.

Heat Dissipation

The S5735-S48S4X has three built-in fans for forced air cooling. Air flows in from the left, right, and front sides, and exhausts from the rear panel.

This figure only shows the airflow direction and does not depict the actual device.

Technical Specifications

Table 4-1448 lists technical specifications of the S5735-S48S4X.

Table 4-1448 Technical specifications

Item	Description
Memory (RAM)	1 GB
Flash	512 MB in total. To view the available flash memory size, run the display version command.
Mean time between failures (MTBF)	66.33 years
Availability	> 0.99999
Service port surge protection	NA
Power supply surge protection	Using AC power modules: ±6 kV in differential mode, ±6 kV in common mode Using DC power modules: ±2 kV in differential mode, ±4 kV in common mode
Dimensions (H x W x D)	Basic dimensions (excluding the parts protruding from the body): 43.6 mm x 442.0 mm x 420.0 mm (1.72 in. x 17.4 in. x 16.5 in.) Maximum dimensions (the depth is the distance from ports on the front panel to the handle on the rear panel): 43.6 mm x 442.0 mm x 444.2 mm (1.72 in. x 17.4 in. x 17.49 in.)
Weight (with packaging)	8.27 kg (18.23 lb)
Stack ports	Any 100/1000BASE-X ports or 10GE SFP+ ports (applicable in V200R019C10 and later versions)
RTC	Supported
RPS	Not supported
PoE	Not supported
Rated voltage range	AC input: 100 V AC to 240 V AC, 50/60 Hz DC input: -48 V DC to -60 V DC
Maximum voltage range	AC input: 90 V AC to 264 V AC, 47 Hz to 63 Hz DC input: -38.4 V DC to -72 V DC
Maximum power consumption (100% throughput, full speed of fans)	89 W
Typical power consumption (30% of traffic load, tested according to ATIS standard)	67 W
Operating temperature	-5°C to +50°C (23°F to 122°F) at an altitude of 0-1800 m (0-5906 ft.) NOTE: 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.). The switch cannot be started when the ambient temperature is lower than 0°C (32°F).
Short-term operating temperature	-5°C to +55°C (23°F to 131°F) at an altitude of 0-1800 m (0-5906 ft.) NOTE: 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.). The equipment can operate beyond the normal operating temperature range for a short-term period, but the following conditions must be met: The equipment operates at a temperature of over 45°C (113°F) consecutively for at most 96 hours in one year. The equipment operates at a temperature of over 45°C (113°F) for a total of no more than 360 hours in one year. The equipment operates at a temperature of over 45°C (113°F) for no more in 15 times in one year. The equipment may be damaged or experience unexpected exceptions if any of the preceding limits is exceeded. The equipment cannot start when the temperature is lower than 0°C (32°F). The maximum distance of optical modules used in these conditions cannot exceed 10 km.
Storage temperature	-40°C to +70°C (-40°F to +158°F)
Noise under normal temperature (27°C, sound power)	< 61 dB(A)
Relative humidity	5% to 95%, noncondensing
Operating altitude	0-5000 m (0-16404 ft.)
Certification	EMC certification Safety certification Manufacturing certification
Part number	98010947