Teltonika SWM281 Managed L2+ 24-Port Gigabit Ethernet Switch with 4× SFP

The Teltonika SWM281 is a professional L2+ managed Gigabit Ethernet switch designed for enterprise, industrial automation, energy, utilities, smart city and other demanding network applications. Featuring 24 × Gigabit Ethernet ports and 4 × dedicated SFP fibre ports, the SWM281 delivers high-capacity copper and fibre connectivity in a rack-mountable platform.

Unlike a basic managed switch, the SWM281 combines advanced Layer 2 management with additional Layer 3 functionality, including dynamic and static routing, VLAN segmentation, link aggregation, QoS and comprehensive network security. Support for PROFINET, MRP and EtherNet/IP also makes it well suited to industrial automation and mixed IT/OT networks.

Key Features

• 24 × Gigabit Ethernet RJ45 ports
• 4 × SFP fibre ports
• 10/100/1000 Mbps Ethernet
• L2+ managed switching
• Dynamic routing including BGP, OSPF, RIP and EIGRP
• Static IPv4 and IPv6 routing
• 802.1Q VLAN segmentation
• STP/RSTP
• 802.3ad LACP link aggregation
• IGMP snooping
• QoS and traffic shaping
• Port isolation and port mirroring
• PROFINET Class B option
• EtherNet/IP
• MRP client and manager
• SNMP v2/v3
• LLDP
• 802.1X network access control
• RADIUS and TACACS+
• MAC filtering
• Cable diagnostics, ping, traceroute and nslookup
• Teltonika RMS remote management
• 2 years of RMS Management included
• 56 Gbps non-blocking switching bandwidth
• 19-inch rack-mountable design
• 100–240 VAC power input
• Low power consumption
• RCM certified for Australia

24-Port Gigabit Ethernet Connectivity

The SWM281 provides 24 × managed RJ45 Ethernet ports, each supporting 10/100/1000 Mbps Gigabit Ethernet. This provides the port density required for larger industrial, commercial and enterprise networks while maintaining full management and segmentation capabilities.

The switch supports auto MDI/MDIX crossover, allowing straightforward connection of routers, gateways, servers, computers, industrial controllers, IoT gateways and other Ethernet equipment.

4 × SFP Fibre Ports

In addition to its 24 copper Gigabit Ethernet interfaces, the SWM281 includes 4 × dedicated SFP ports.

These SFP interfaces enable fibre-optic uplinks and long-distance network connections, making the SWM281 ideal for connecting communications cabinets, buildings, production areas and other infrastructure where conventional copper Ethernet distance is insufficient.

The combination of 24 Gigabit Ethernet + 4 SFP provides flexible hybrid copper and fibre connectivity for larger network deployments.

Advanced L2+ Network Management

The SWM281 offers extensive Layer 2 networking functionality including:

• VLAN
• STP/RSTP
• Loop protection
• Forwarding table management
• 802.3ad LACP
• IGMP snooping
• Multicast querier
• Port isolation
• Port mirroring
• EEE management

These capabilities allow network administrators to segment traffic, create redundant network paths and efficiently manage complex Ethernet infrastructure.

Layer 3 & Dynamic Routing

The SWM281 goes beyond conventional Layer 2 switching by providing additional Layer 3 functionality.

Dynamic routing protocols include:

• BGP
• OSPF v2
• RIP v1/v2
• EIGRP

Layer 3 features also include:

• Static IPv4 routing
• Static IPv6 routing
• DHCPv6 client
• Static IPv6 addressing

This provides greater flexibility when deploying the SWM281 across segmented enterprise and industrial networks.

VLAN Network Segmentation

Support for 802.1Q VLAN allows network administrators to separate devices and traffic into independent logical networks while using the same physical switch.

For example, one SWM281 can be used to create separate VLANs for:

• Industrial automation equipment
• IoT devices and gateways
• CCTV infrastructure
• Building management systems
• Corporate computers
• Servers
• Guest networks

VLAN segmentation can improve network organisation, performance and security.

Industrial Protocol Support

The SWM281 is designed for more than conventional enterprise networking and supports key industrial Ethernet technologies.

PROFINET

PROFINET Class B conformance is available with the appropriate optional order code.

EtherNet/IP

Native EtherNet/IP support helps integrate the switch into industrial automation environments using Ethernet-based control systems.

MRP

The SWM281 supports both:

• MRP Client
• MRP Manager

Media Redundancy Protocol can be used to create resilient industrial Ethernet ring networks where network availability is important.

QoS & Traffic Management

Advanced Quality of Service features allow important network traffic to be prioritised and bandwidth to be controlled.

The SWM281 supports:

• Port priority
• DSCP priority
• 802.1p priority
• TOS
• SP scheduling
• WFQ scheduling
• WRR scheduling
• Rate limiting
• Storm control
• Port-based traffic shaping

These features are useful in networks carrying different types of industrial, business, voice, video and IoT traffic.

Network Security

The SWM281 provides multiple security and access-control functions including:

• 802.1X port-based network access control
• RADIUS
• TACACS+
• Pre-shared key authentication
• IP and login attempt blocking
• VLAN port separation
• MAC filtering

MAC filtering can be configured to control which devices are permitted to connect through individual Ethernet ports, providing another layer of protection against unauthorised network access.

Network Diagnostics

Built-in diagnostic tools help technicians troubleshoot network problems without requiring additional equipment.

Available tools include:

• Cable diagnostics
• Ping
• Traceroute
• nslookup
• System and event logging

This is particularly useful for remotely managed industrial and commercial installations.

Teltonika RMS Remote Management

The SWM281 supports Teltonika Remote Management System (RMS), allowing administrators to remotely monitor and manage compatible Teltonika network infrastructure.

The SWM281 is supplied with 2 years of RMS Management, providing remote management capability from deployment.

RMS can help simplify management of geographically distributed networks and reduce the need for on-site maintenance visits.

SwmOS Operating System

The SWM281 operates on Teltonika SwmOS, an OpenWrt-based Linux operating system.

Management and firmware capabilities include:

• WebUI
• HTTP/HTTPS
• CLI
• SSH
• FOTA
• Configuration backup
• Firmware update
• RMS multi-device firmware/configuration management
• Event, system and kernel logging
• Teltonika Networks Web API support

This provides administrators and integrators with a flexible platform for advanced network deployment and management.

High-Performance Switching

The SWM281 provides substantial switching performance for multi-device Gigabit networks.

Performance	Specification
Non-blocking bandwidth	56 Gbps
Forwarding rate	83.33 Mpps
Packet buffer	512 KB
MAC address table	8K entries
Jumbo frame support	Up to 10,000 bytes

Low Power Consumption

Unlike the PoE-enabled SWM280, the SWM281 is designed as a non-PoE managed switch and consequently has significantly lower power requirements.

Power specifications include:

• 100–240 VAC, 50/60 Hz
• C14 power connector
• Idle consumption: 5.5 W
• Maximum consumption: 20 W

This makes the SWM281 a strong option where advanced switching is required but connected devices do not need to be powered through Ethernet.

Rack-Mountable Design

The SWM281 is housed in an anodised aluminium enclosure designed for professional rack installation.

Physical specifications include:

• Dimensions: 483 × 44 × 234 mm
• 19-inch rack format
• Rack mounting kit
• IP30 protection
• Operating temperature: 0°C to +50°C
• Operating humidity: 10–90% non-condensing
• 100–240 VAC power input

Technical Specifications

Feature	Specification
Ethernet Ports	24 × RJ45
Ethernet Speed	10/100/1000 Mbps
Fibre Interfaces	4 × SFP
PoE	No
Switching Bandwidth	56 Gbps
Forwarding Rate	83.33 Mpps
MAC Table	8K entries
Jumbo Frames	Up to 10,000 bytes
VLAN	802.1Q
Link Aggregation	802.3ad LACP
Spanning Tree	STP/RSTP
Dynamic Routing	BGP, OSPF v2, RIP v1/v2, EIGRP
Industrial Protocols	PROFINET*, MRP, EtherNet/IP
Management	WebUI, SSH, SNMP, RMS
Security	802.1X, RADIUS, TACACS+, MAC filtering
Operating System	SwmOS
Input Voltage	100–240 VAC, 50/60 Hz
Power Consumption	5.5 W idle / 20 W max
Operating Temperature	0°C to +50°C
Protection	IP30
Dimensions	483 × 44 × 234 mm
Weight	1.853 kg
Mounting	Rack mounting
Australian Certification	RCM