Allen-Bradley 1783-ETAPK Industrial Ethernet Product: Specifications, Product Description, Applications, Advantages, and Recommended Models

1. Product Overview

The Allen-Bradley 1783-ETAPK is a catalog number that should be verified carefully before it is used in a purchasing specification, equipment replacement plan, or industrial automation project.

The 1783 product-number family is associated with industrial networking equipment, including Ethernet switches and related network infrastructure products. These devices provide communication paths between programmable logic controllers (PLCs), human-machine interfaces (HMIs), industrial computers, remote I/O systems, drives, and other network-enabled equipment.

However, the exact designation 1783-ETAPK cannot be confidently identified from the model number alone. It should not automatically be classified as a particular Ethernet switch, transceiver, accessory, or network interface without confirming the product label.

To keep the technical description useful without introducing unsupported specifications, the following sections distinguish the general characteristics of industrial Ethernet products from model-specific details that require verification.

2. Brand and Product Series

The exact product series is an important purchasing detail. Products that share the same brand and a similar catalog-number prefix may have different functions, installation requirements, and network capabilities.

For this reason, the 1783-ETAPK should be identified by its complete catalog number and, where available, its hardware revision before selecting related products or preparing a final technical specification.

3. Detailed Technical Specifications of the 1783-ETAPK

The 1783-ETAPK is a three-port EtherNet/IP tap with conformal coating. It is designed to support industrial Ethernet network topologies, including linear connections and compatible Device Level Ring (DLR) configurations.

Unlike a conventional Ethernet switch, an Ethernet tap is designed to provide a specific network connection arrangement for compatible industrial devices. It can be used to support ring-network connectivity and communication recovery when incorporated into a properly configured network.

3.1 Main Technical Parameters

The dimensions above are converted from the published mechanical dimensions and are intended for preliminary planning. The exact weight should be obtained from the product’s mechanical specification or a physical measurement rather than estimated.

3.2 Electrical Parameters

The power supply must remain within the specified input range. Incorrect polarity, excessive voltage, poor terminal connections, or unsuitable wiring can cause communication problems or damage the equipment.

The maximum power consumption is an equipment rating, not a recommendation to operate the tap continuously at its upper limit under unsuitable conditions.

4. Product Introduction

4.1 Product Function

The 1783-ETAPK is an industrial EtherNet/IP tap that provides three copper Ethernet ports. It is intended to support network arrangements used by industrial automation equipment.

A typical industrial Ethernet network may contain controllers, distributed I/O, drives, operator interfaces, and other communication devices. The tap provides the network connections required by compatible topologies and can participate in a Device Level Ring architecture.

The model’s conformal coating is intended to improve resistance to certain environmental contaminants. This feature can be useful in industrial control cabinets where moisture, corrosive gases, or other contaminants may affect equipment reliability.

The coating does not eliminate the need for an appropriate enclosure or make the product suitable for direct water exposure.

4.2 Three-Port Copper Ethernet Design

The device has three copper Ethernet ports using RJ45 connections.

This configuration provides a compact connection point for compatible industrial network devices without requiring a larger multiport switch for every application.

The 10/100 Mbps interfaces are intended for compatible Fast Ethernet communication. They should not be confused with Gigabit Ethernet interfaces, which operate at higher nominal data rates.

When integrating the tap into an existing network, engineers should confirm that the connected equipment supports the required speed, cabling, and network topology.

4.3 Conformal Coating

The conformally coated design is one of the distinguishing features of the 1783-ETAPK.

Conformal coating can help protect electronic assemblies from the effects of selected environmental contaminants. It is particularly relevant when equipment is installed in industrial locations where humidity, corrosive vapors, or fungal growth may be concerns.

However, conformal coating does not replace correct installation practices. The tap should be mounted in an appropriate environment, protected from direct liquid exposure, and operated within its specified temperature and electrical limits.

4.4 Device Level Ring Compatibility

Device Level Ring is a network topology designed to provide an alternative communication path when a link in a compatible ring network fails.

When the network is correctly designed, a ring can reduce the effect of certain cable or connection failures. The actual recovery time depends on the topology, participating devices, configuration, and fault conditions.

The 1783-ETAPK supports compatible DLR applications. It should not be regarded as a standalone guarantee of uninterrupted communication.

5. Product Applications

5.1 Factory Automation

In factory automation, the 1783-ETAPK can be used in compatible Ethernet network designs connecting controllers, I/O devices, and other industrial equipment.

A production line may contain multiple devices that exchange control information. An appropriately designed Ethernet network provides a communication path between these devices and supports coordinated operation.

The tap is particularly relevant when the network design calls for its three-port connection arrangement or participation in a compatible ring topology.

5.2 Conveyor and Material Handling Systems

Conveyor systems often contain distributed controllers, sensors, motor drives, and monitoring equipment.

A suitable ring network can provide an alternate communication path when certain network links fail. The 1783-ETAPK can be considered where its supported interfaces and topology match the system design.

Engineers should assess the network layout, required response time, and communication dependencies before choosing the tap.

5.3 Packaging Machinery

Packaging equipment may use EtherNet/IP communications to exchange status and control information between compatible devices.

The tap can form part of a network connecting equipment within a machine or packaging cell. Its compact design may be helpful where the control cabinet has limited space.

The number of connected devices, required port speeds, and topology should determine whether a tap or a conventional Ethernet switch is more suitable.

5.4 Automotive and Assembly Lines

Automotive manufacturing systems often contain multiple machine stations and coordinated control equipment.

A compatible industrial Ethernet network can connect controllers, remote I/O, and other network-enabled devices. Where the network requires ring connectivity, the tap may contribute to the overall topology.

The final design should account for the number of devices, network recovery requirements, cable routes, and maintenance procedures.

5.5 Industrial Process Monitoring

In process-control environments, communication networks support the exchange of status information between control equipment and monitoring systems.

The 1783-ETAPK can be used in suitable EtherNet/IP network configurations where its connection arrangement is appropriate.

Its environmental protection characteristics may be useful in certain industrial locations, but the actual operating environment must remain within the product’s specified limits.

5.6 Machine-Level Network Expansion

When an existing machine network requires a different physical arrangement, an Ethernet tap can help implement a compatible network topology without automatically replacing the entire network infrastructure.

Before adding a tap, engineers should confirm whether the existing network uses a linear, star, or ring arrangement and whether the other connected devices support the intended configuration.

6. Product Advantages

6.1 Compact Installation

The relatively small enclosure makes the device suitable for installations where cabinet space is limited.

A compact form factor can also simplify the organization of network components, provided that sufficient clearance remains for cables, mounting, and maintenance.

6.2 Support for Network Resilience

DLR compatibility is an important advantage in applications where a ring topology is appropriate.

When correctly configured, the network can recover from certain link failures by using the remaining path. This can reduce the risk of a single cable interruption disconnecting devices throughout the network.

6.3 Environmental Protection

The conformal coating provides additional protection against certain contaminants compared with an otherwise equivalent uncoated configuration.

This can be useful in industrial settings where the environment is more demanding than a typical office installation. The coating does not, however, establish an independent waterproof or dustproof rating.

6.4 Low Power Requirement

The maximum power consumption of 3 W makes the device relatively modest in its electrical demand.

This can simplify power-budget calculations in cabinets containing several network devices. The supply must still meet the specified voltage range and installation requirements.

6.5 Straightforward Copper Connectivity

Three RJ45 copper ports provide a familiar physical interface for compatible Ethernet equipment.

This can simplify cabling and maintenance where copper Ethernet is suitable for the required distance and environmental conditions.

7. Five Recommended Models from the Same Product Series or Related Family

The following models belong to the EtherNet/IP tap family and provide alternatives for different copper and fiber connection requirements.

They are related products, but they are not necessarily interchangeable. In particular, fiber-port arrangements differ from the three-copper-port configuration of the 1783-ETAPK.

Dimensions and weights marked “Verify” are intentionally left unconfirmed rather than estimated. Obtain the exact mechanical specifications before purchasing, shipping, or designing the installation.

7.1 1783-ETAP — Standard Three-Port Ethernet Tap

The 1783-ETAP is the uncoated counterpart to the 1783-ETAPK.

It provides three copper Ethernet ports and supports compatible industrial Ethernet topologies. It is worth considering when the application requires the same general port arrangement but does not require the conformally coated configuration.

The primary selection consideration is environmental suitability. The standard and conformally coated versions should not be treated as identical in their resistance to environmental contaminants.

7.2 1783-ETAP1F — Single-Fiber Ethernet Tap

The 1783-ETAP1F provides two copper Ethernet ports and one fiber port.

It is a candidate for applications where copper connections are needed at the equipment level but a fiber connection is also required for the network layout.

Fiber can be useful in installations where electrical isolation, longer communication distances, or resistance to electromagnetic interference are important. The appropriate fiber type and optical characteristics must be confirmed before selection.

7.3 1783-ETAP1FK — Conformally Coated Single-Fiber Version

The 1783-ETAP1FK combines a single fiber port with two copper ports and conformal coating.

It may be considered when the network requires both copper and fiber connectivity and the installation environment makes the coated configuration appropriate.

The choice between the 1783-ETAP1F and 1783-ETAP1FK should be based on environmental requirements, interface compatibility, and the precise installation conditions.

7.4 1783-ETAP2F — Dual-Fiber Ethernet Tap

The 1783-ETAP2F provides one copper port and two fiber ports.

It is a candidate for network designs that require fiber connections on two sides of the tap. This can be useful when network links need to extend between equipment areas or across electrically noisy environments.

The correct fiber type, optical interface, cable length, and supported network topology must be verified before installation.

7.5 1783-ETAP2FK — Conformally Coated Dual-Fiber Version

The 1783-ETAP2FK combines one copper port and two fiber ports with conformal coating.

It is relevant to applications where a dual-fiber network arrangement is required and the environment justifies the coated configuration.

Compared with the 1783-ETAPK, it has a different interface arrangement. It should therefore be selected based on the actual network design rather than treated as a direct replacement.

8. Five Additional Popular Models from the Same Brand

The following products provide additional options for industrial networking and automation. They serve different purposes, so the correct choice depends on whether the application requires an Ethernet tap, an Ethernet switch, or a control-system component.

The dimensions and weights of these products are not provided as confirmed values because the exact hardware revision and mechanical specification have not been established here. This avoids introducing misleading figures into a purchasing or engineering document.

8.1 1783-US5T — Compact Unmanaged Switch

The 1783-US5T is an option for simple industrial Ethernet networks with a limited number of connected devices.

An unmanaged switch generally requires less configuration than a managed switch. It can be appropriate when the application only needs basic Ethernet connectivity and does not require advanced network monitoring or traffic-management functions.

It is not equivalent to the 1783-ETAPK. A conventional switch and an Ethernet tap perform different roles in network architecture.

8.2 1783-US8T — Eight-Port Unmanaged Switch

The 1783-US8T provides a larger port count than a five-port switch and may be useful in small machine networks.

It can connect multiple compatible Ethernet devices within a local network segment. The final selection should account for port speed, cable requirements, power, and the number of devices that need to communicate.

An unmanaged switch may be sufficient for straightforward connectivity but does not provide all the management and diagnostic functions of a managed industrial switch.

8.3 1783-BMS10CGN — Managed Industrial Switch

The 1783-BMS10CGN belongs to the Stratix 5700 family.

Managed industrial switches are useful when the network requires more detailed configuration, monitoring, or traffic organization than a basic unmanaged switch can provide.

This model is worth evaluating for a machine network or a production cell where the required interface arrangement and firmware functions match the application.

It should not be selected as a direct replacement for the 1783-ETAPK unless the network design has been reviewed and the different functions are explicitly accounted for.

8.4 1783-BMS20CA — Higher-Port-Count Managed Switch

The 1783-BMS20CA is an option to evaluate for larger industrial networks that require a managed switching platform.

Its higher port count may help consolidate device connections within a control cabinet or machine network.

Before selecting it, confirm the actual copper and fiber interface arrangement, power requirements, supported management features, and compatibility with the intended network topology.

8.5 1783-CMS10DP — Ten-Port Managed Switch

The 1783-CMS10DP is a Stratix 5200 managed-switch option.

It may be suitable where a compact managed Ethernet switch is required rather than a dedicated three-port tap.

The key decision is whether the application needs the port arrangement and network behavior of an Ethernet tap or the switching functionality of a managed switch. These devices should not be treated as interchangeable merely because they support industrial Ethernet.

9. Model Selection Comparison

10. Installation and Maintenance Considerations

10.1 Verify the Network Topology

Before installing the 1783-ETAPK, determine whether the network uses a linear, star, or compatible ring arrangement.

A ring network must be configured correctly, and all participating equipment must support the intended topology. Incorrect connections can prevent the network from operating as designed.

10.2 Check the DC Power Supply

The device requires a suitable 24 V DC supply within the specified 20.4–27.6 V range.

Check polarity, conductor size, terminal security, and grounding requirements. The power source must also have adequate capacity for all connected equipment.

10.3 Inspect Ethernet Cabling

Use suitable Ethernet cables and connectors for the installation environment.

Check the cable category, length, routing, and physical condition. Where electromagnetic interference is a concern, follow the prescribed separation, grounding, and shielding practices.

10.4 Check the Installation Environment

The specified operating temperature range is −25°C to +70°C under applicable conditions.

The conformal coating offers additional protection against certain contaminants but does not make the device waterproof or suitable for every industrial environment. An appropriate enclosure may still be necessary.

10.5 Plan Replacement Carefully

The 1783-ETAPK is discontinued, so a replacement project should begin with confirmation of the exact device function and the requirements of the installed network.

A replacement should match the necessary copper and fiber interfaces, network topology, power input, environmental requirements, and installation dimensions.

A conventional Ethernet switch may not reproduce the same network behavior as a dedicated Ethernet tap. Functional equivalence should be established before changing the hardware.

11. Product Advantages Summary

The 1783-ETAPK combines a compact three-port copper Ethernet interface with EtherNet/IP compatibility, support for appropriate ring-network configurations, and conformal coating.

Its main strengths are its small physical size, relatively low power consumption, familiar RJ45 connections, and suitability for compatible industrial network layouts.

The device is most appropriate when the network specifically requires an Ethernet tap with the relevant copper interfaces and environmental characteristics. If the application instead requires many additional ports, advanced switch management, or fiber connectivity, another model may be more suitable.

12. Final Summary

The Allen-Bradley 1783-ETAPK is a three-port, conformally coated EtherNet/IP tap designed for industrial Ethernet applications.

Its key technical parameters are summarized below.

The five related models are 1783-ETAP, 1783-ETAP1F, 1783-ETAP1FK, 1783-ETAP2F, and 1783-ETAP2FK. They cover standard copper connections and alternative fiber configurations.

The five additional models are 1783-US5T, 1783-US8T, 1783-BMS10CGN, 1783-BMS20CA, and 1783-CMS10DP. These provide alternatives for basic Ethernet connectivity and managed industrial switching.

For engineering or procurement use, the most important step is to confirm the required network function before choosing a replacement. The 1783-ETAPK is an Ethernet tap rather than a conventional managed switch, and that distinction affects the network architecture, compatibility, and expected behavior.