{"product_id":"cr-expand1","title":"PoE Control Expander with Serial, IR, Relay \u0026 Digital I\/O","description":"\u003cp\u003e\u003cstrong\u003eEvery control system hits a wall when the device it needs to manage is across the room — or across the building — from the processor.\u003c\/strong\u003e The KanexPro CR-EXPAND1 puts serial, IR, relay, and digital I\/O wherever you need them, powered and connected by a single Ethernet cable. Mount it behind a display, above a projector, or in a remote closet — one PoE drop gives you RS-232\/RS-485 for device control, IR output for legacy equipment, two relays for screens and lighting, and a digital I\/O port for sensors or contact closures.\u003c\/p\u003e\u003cp\u003eUnlike competitors that sell separate boxes for serial, IR, and relay expansion, the CR-EXPAND1 combines all four port types in one compact device. A built-in web server provides browser-based configuration without special software, and open API commands over TCP\/UDP mean it works with any IP-based control system. Dual power input (DC 12-24V or PoE) keeps deployment flexible.\u003c\/p\u003e","brand":"KanexPro","offers":[{"title":"Default Title","offer_id":49156215406762,"sku":"CR-EXPAND1","price":299.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/2966\/6474\/files\/CR-EXPAND1-zoom1.jpg?v=1787909829","url":"https:\/\/b2b.kanexpro.com\/products\/cr-expand1","provider":"KanexPro B2B","version":"1.0","type":"link"}