The Allen-Bradley 1756-EN4TR is a communications module, not a controller module, specifically a 2-port EtherNet/IP communication module for the ControlLogix programmable automation controller (PAC) system by Rockwell Automation.

• Communication protocol: EtherNet/IP
• Number of ports: 2
• Speed: 10/100/1G Mbps (supports auto-negotiation)
• Connection capacity: Up to 512 TCP connections
• Security: Supports CIP Security

1. About new and used product descriptions:

We guarantee that all products are 100% normal before shipment.
The new parts will use the original packaging.
Some second-hand products may have obvious scratches on the surface.
Second hand products will undergo strict testing before shipment.
Inventory will change periodically, please contact us before purchasing!

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