{"product_id":"m5stack-dmx512-isolated-rs485-unit","title":"M5Stack DMX Unit with Isolated RS-485 Transceiver (CA-IS3092W)","description":"\u003cp\u003e\u003cvideo controls playsinline muted style=\"width:100%;height:auto;\"\u003e\u003csource type=\"video\/mp4\" src=\"https:\/\/m5stack.oss-cn-shenzhen.aliyuncs.com\/resource\/docs\/products\/unit\/Unit-DMX\/2983aefead903db9d8f07154b6551e62.mp4\"\u003e\u003c\/video\u003e\u003c\/p\u003e\u003ch2\u003eM5Stack DMX512 Isolated RS485 Unit\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eM5Stack DMX Unit\u003c\/strong\u003e provides a compact interface for DMX512 lighting-control networks. It integrates a CA-IS3092W isolated half-duplex RS485 transceiver, an XLR-3 female connector, Grove serial connection, and a switchable 120Ω termination resistor.\u003c\/p\u003e\u003cp\u003eElectrical isolation is specified up to 5kVrms, helping separate the controller side from the RS485 bus in supported conditions. The transceiver supports data rates up to 500Kbps, while DMX512 uses a fixed 250Kbps rate.\u003c\/p\u003e\u003ch2\u003eConnect Embedded Controllers to DMX512 Fixtures\u003c\/h2\u003e\u003cp\u003eUse the unit for stage lighting, landscape lighting, decorative fixtures, dimmer control, and DMX512 testing. The Grove interface connects to the host serial port while the XLR-3 connector links to compatible DMX equipment.\u003c\/p\u003e\u003ch3\u003eSwitchable 120Ω Termination\u003c\/h3\u003e\u003cp\u003eThe onboard termination resistor can be enabled where the unit is installed at the end of the RS485 bus. Incorrect termination can contribute to reflections and unreliable communication, so plan bus topology, cable impedance, grounding, and termination across the full installation.\u003c\/p\u003e\u003ch3\u003eIsolation Does Not Replace Complete Electrical Design\u003c\/h3\u003e\u003cp\u003eIsolation improves interface robustness but does not eliminate the need for correct wiring, surge protection, grounding strategy, connector pinout verification, and enclosure design. Confirm the DMX fixture pinout before connection because physical connectors alone do not guarantee identical wiring.\u003c\/p\u003e\u003ch2\u003eBuild Repeatable Lighting-Control Networks\u003c\/h2\u003e\u003cp\u003eKeep the bus topology appropriate for RS485, avoid uncontrolled stubs, use suitable twisted-pair cable, and verify termination at the actual endpoints. For permanent installations, follow the applicable electrical and venue requirements.\u003c\/p\u003e\u003cp\u003eTechnical setup details are available in the \u003ca href=\"https:\/\/docs.m5stack.com\/en\/products\/sku\/U183\" target=\"_blank\" rel=\"noopener\"\u003eM5Stack DMX Unit documentation\u003c\/a\u003e.\u003c\/p\u003e","brand":"LogicBoundless","offers":[{"title":"Default Title","offer_id":49240537530583,"sku":"LB-M5-U183","price":9.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/8952\/2135\/files\/1_fc317bd3-08d3-4378-a1d0-f5b511c5e29f.webp?v=1783243365","url":"https:\/\/logicboundless.com\/products\/m5stack-dmx512-isolated-rs485-unit","provider":"LogicBoundless","version":"1.0","type":"link"}