Allen-Bradley 1783-ETAP1F EtherNet IP Tap Module

Allen-Bradley 1783-ETAP1F EtherNet/IP Tap is a three-port inline module for EtherNet/IP networks that enables device-level ring (DLR) or linear topologies while providing non-intrusive monitoring. The 1783-ETAP1F configuration features two copper RJ-45 ports and a single fiber port, delivering a mixed copper/fiber topology that supports longer runs or EMI-resistant segments between device clusters. As documented by Rockwell Automation, ETAP devices insert between devices on the network and mirror traffic across their Ethernet ports for monitoring and diagnostics, with the 1783-ETAP1F representing the 1-fiber-port variant in the ETAP family (Series A). This model is used to extend EtherNet/IP deployments in industrial automation, offering straightforward integration with existing devices and a path to ring-based redundancy, while being part of the broader 1783 EtherNet/IP Tap lineup that includes 1783-ETAP2F and 1783-ETAP3T for different port configurations. Common applications include monitoring traffic on production lines, bridging device clusters over fiber segments, and providing a dedicated monitoring path without disrupting normal device communications.