{"product_id":"cincinnati-muxi-ab-120-muxiport-controller","title":"CINCINNATI MUXI-AB-120 MuxiPort Controller","description":"\u003cdiv\u003e\u003cp\u003eThe MUXI-AB-120 MuxiPort Controller from Tomantron is a 120 VAC-powered RS-232 serial multiplexer designed to interface with CINCINNATI PLCs, providing a compact bridge between a single PLC serial port and two independent user ports. The unit multiplexes the AB PLC’s RS-232 connection into two separate channels, enabling two devices—such as a PC terminal and an HMI or test rig—to share the PLC’s serial link without swapping cables. A built-in status indicator shows power and operation state, helping technicians quickly diagnose communications on the factory floor. This model, labeled MUXI-AB-120, is commonly found in third-party listings as a MuxiPort Controller compatible with CINCINNATI controllers, offered in variations described as new\/out-of-box or refurbished. Typical use cases include debugging, data collection, and multi-user access to a single AB serial channel in legacy Rockwell Automation environments, delivering flexible RS-232 access while preserving the integrity of the PLC interface.\u003c\/p\u003e\u003c\/div\u003e","brand":"CINCINNATI","offers":[{"title":"New","offer_id":51678067425582,"sku":null,"price":53.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_e05c822a-4fc0-4feb-8b1e-14fbc5b96a09.jpg?v=1769571315","url":"https:\/\/plgautomation.com\/products\/cincinnati-muxi-ab-120-muxiport-controller","provider":"PLG Automation ","version":"1.0","type":"link"}