Unmanaged Ethernet Switches

Unmanaged Industrial Ethernet Switches

Unmanaged industrial Ethernet switches connect PLCs, HMIs, drives, control systems and other Ethernet devices without requiring advanced network management configuration.

At Garma Electrónica, we offer plug-and-play industrial Ethernet switches from manufacturers such as Helmholz and N-Tron (HMS Networks), with different port configurations, communication speeds and connectivity options for industrial applications.

Which Unmanaged Ethernet Switch Do You Need?

Simple Ethernet connectivity: connect multiple devices without configuring the switch.
Control cabinet installation: compact models designed for DIN-rail mounting.
Fast Ethernet or Gigabit: select the appropriate speed for your equipment and expected network traffic.
Fibre-optic connections: versions with optical ports for links requiring longer distances or electrical isolation.

Need help selecting the right model? Contact our technical team.

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More info about Unmanaged Ethernet Switches

How to Choose an Unmanaged Industrial Ethernet Switch

An unmanaged industrial Ethernet switch connects devices within an Ethernet network without requiring specific switch configuration. It is a practical solution for machines, control cabinets and automation networks that do not require advanced network administration functions.

Although installation is straightforward, selection should consider port count, communication speed, connection type, power supply and environmental conditions. The requirements of the industrial communication protocol must also be checked.

Key Features and Selection Criteria

Port Count and Available Space

Choose a configuration that accommodates all planned devices and, where appropriate, leaves spare ports for future expansion. In space-constrained control cabinets, dimensions and mounting options can be decisive.

Fast Ethernet and Gigabit Ethernet

Fast Ethernet switches support connections of up to 100 Mbps, while Gigabit Ethernet models support up to 1 Gbps per compatible port. The appropriate speed depends on the connected equipment, traffic volume and application requirements.

RJ45 and Fibre-Optic Ports

RJ45 ports are commonly used for Ethernet connections within machines and control cabinets. Certain industrial switches also feature fibre-optic ports for longer-distance links or applications requiring electrical isolation between network segments. Fibre type, connectors and transmission distance must be verified for each version.

Power Supply and Environmental Conditions

Before selecting a switch, check its supply voltage, operating temperature range, dimensions and mechanical installation requirements. Some models provide redundant power inputs or additional features for demanding environments.

Unmanaged vs Managed Industrial Ethernet Switches

An unmanaged switch is suitable when straightforward Ethernet connectivity is required without configurable network management functions. However, installations requiring network segmentation, managed redundancy, advanced monitoring or specific traffic control may benefit from a managed switch.

Criteria	Unmanaged	Managed
Configuration	No advanced configuration required	Configurable network functions
VLANs	No configurable VLANs	Depending on model capabilities
Diagnostics	Basic indicators and possible model-specific features	Monitoring tools depending on the model
Typical Application	Straightforward device connectivity	Networks requiring greater control and administration

Unmanaged Switches for PROFINET Networks

Not all unmanaged Ethernet switches offer the same characteristics for PROFINET applications. Beyond basic Ethernet connectivity, the installation requirements and supported communication functions of each device must be checked.

For example, Helmholz offers certain unmanaged FLEXtra models documented for PROFINET Conformance Class A applications. This capability must be verified for the specific product reference and should not automatically be attributed to all unmanaged switches.

Industrial Ethernet Solutions from Helmholz and N-Tron

Helmholz FLEXtra: Compact Connectivity for Automation

The Helmholz FLEXtra range includes unmanaged Ethernet switches for industrial automation. Available options include compact DIN-rail models with different port counts and communication speeds, depending on the reference.

N-Tron: Switches for Demanding Industrial Environments

N-Tron, part of HMS Networks, provides unmanaged switches designed for industrial applications, with different copper and fibre-optic port configurations. Environmental specifications, power supply options and approvals depend on the selected family and model.

Applications and Benefits

Machine builders: connecting PLCs, HMIs, drives and other Ethernet devices within machinery.
Installation expansion: adding new devices to an existing network.
Compact control cabinets: space-saving solutions for installations with limited mounting space.
Long-distance connections: fibre-optic versions where network conditions require optical links.
Industrial maintenance: replacing or expanding connectivity components after verifying the required specifications.

Need Help Selecting an Industrial Ethernet Switch?

At Garma Electrónica, we help you compare unmanaged switches from Helmholz and N-Tron based on port count, speed, connectivity and installation conditions.

Tell us which devices you need to connect, whether you use PROFINET or another industrial Ethernet protocol, and whether fibre-optic ports are required.

Request Switch Selection Advice

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Calle Oyarzun 1 Bajo
20013 Donostia-San Sebastián
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943 29 11 02

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