Allen-Bradley 1756-EN2TRK ControlLogix EtherNet/IP Dual-Port Interface Module

Product Overview

The 1756-EN2TRK serves as a high-performance EtherNet/IP communication interface for the Allen-Bradley ControlLogix platform. This module facilitates real-time data exchange, distributed I/O control, and seamless controller-to-controller interlocking. Equipped with a specialized conformal coating, the "K" version provides superior protection against atmospheric contaminants. We provide this unit as 100% Brand New in original factory packaging, ensuring peak network availability and long-term hardware integrity.

Technical Specifications

The 1756-EN2TRK features robust networking capabilities designed for high-density industrial traffic:

• Communication Protocol: EtherNet/IP

• Port Configuration: Dual-Port Copper (RJ45)

• Communication Speed: 10/100 Mbps (Auto-negotiation)

• TCP/IP Connections: Supports up to 128 Connections

• Logix Connections: Supports up to 256 Connections

• Environmental Protection: Conformal Coated (Class G3 compliant)

• Mounting Architecture: Chassis-based (any slot)

• Weight: 0.99 lbs (0.45 kg)

Engineering Advantages

• DLR (Device Level Ring) Support: The dual-port architecture enables Device Level Ring topology. This solves the critical pain point of network downtime by providing a redundant media path; the network continues to operate even if a single cable segment fails or a node disconnects.

• Conformal Coating for Extreme Durability: The "K" suffix designates a factory-applied conformal coating. This protective layer shields internal circuitry from moisture, salt spray, and corrosive airborne chemicals, effectively preventing PCB degradation in wastewater or chemical processing plants.

• High-Volume Data Handling: With support for 128 TCP/IP connections, this module manages massive data flows from HMI stations, scannable devices, and enterprise-level software without compromising I/O scan times.

• Flexible Topology Options: This module supports linear, star, and ring topologies. Engineers can optimize their network layout to reduce cabling costs or increase system fault tolerance depending on specific site requirements.

FAQs

• Is the 1756-EN2TRK supplied as a brand new original unit?

  Yes. We supply this module as 100% Brand New original stock. Each unit remains in its factory-sealed original packaging to guarantee that all technical specifications and safety certifications remain valid.

• What is the difference between the 1756-EN2TR and the 1756-EN2TRK?

  The 1756-EN2TRK includes a conformal coating (the "K" designation), whereas the standard 1756-EN2TR does not. The "K" version provides essential resistance to corrosion and humidity in harsh industrial environments. Both modules offer identical communication performance.

• Does this module require a specific slot in the ControlLogix chassis?

  No. You can install the 1756-EN2TRK into any available slot within a local or remote 1756 ControlLogix chassis. The module receives its power directly from the chassis backplane.

• Can I use the dual ports as an Ethernet switch?

  Yes. The integrated switch technology allows you to "daisy-chain" multiple EtherNet/IP devices. This significantly reduces the need for external managed switches in the field, simplifying cabinet wiring and reducing hardware costs.