{"product_id":"dc3-3v-5v-ttl-to-rs485-interconversion-module-serial-level-conversion-board-serial-hardware-auto-flow-control-74hc14-sp485-chip","title":"DC3.3V\/5V TTL to RS485 Interconversion Module Serial Level Conversion Board Serial Hardware Auto Flow Control 74HC14+SP485 Chip","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003ediymore\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChoice\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eyes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFeatures 1\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eCommunication conversion module\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFeatures 2\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eRS485 communication power controller\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFeatures 3\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eTTL to RS485\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFeatures 4\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eRS485 TTL\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFeatures 5\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eRS485 communication power controller\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFeatures 6\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e74HC14 + SP485 chip\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eQuantity\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e1\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eModule\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eFeatures:\u003cbr\u003e1. Original 74HC14 + SP485 chip to ensure stable transmission: the TTL to RS485 converter module uses a combination of high-quality 74HC14 and SP485 chips to provide excellent signal conversion performance\u003cbr\u003e2. Lightning gas discharge tube, enhance anti-interference ability: built-in lightning gas discharge tube, can effectively absorb and discharge atmospheric overvoltage, to prevent lightning strikes and other emergencies on the equipment caused by the damage\u003cbr\u003e3. Three transient suppression diodes TVS, comprehensive protection circuit: equipped with three sets of transient suppression diodes (TVS), used to prevent electrostatic discharge (ESD), induced lightning strikes and other transient overvoltage events on the circuit\u003cbr\u003e4. Thermal fuse for overcurrent protection: Thermal fuse for overcurrent protection, when the current exceeds the safety threshold, the fuse will quickly blow, cutting off the power supply, to avoid fires and equipment damage due to short-circuits or overloads.\u003cbr\u003e5.120Ω termination resistor, optimize signal integrity: Built-in 120Ω termination resistor, users only need to short R12 to easily access the resistor, effectively eliminating signal reflection and echo interference, enhance the signal integrity of the RS485 bus.\u003cbr\u003e6. Power PWR and RXD, TXD signal indicator, status at a glance: the module is equipped with power (PWR) and receive (RXD), transmit (TXD) signal indicator, real-time display of the work status\u003c\/p\u003e\u003cp\u003eParameter:\u003cbr\u003eSupply voltage:\u003cbr\u003eDC 3.3V (1.8-5.5V)\u003cbr\u003eDC 5V (2-5.5V)\u003cbr\u003eCurrent: 8-10A\u003cbr\u003eCommunication interface: TTL\u003cbr\u003eProduct size: 45*20mm\u003c\/p\u003e\u003cp\u003eUses:\u003cbr\u003e1. MCUs such as microcontroller, ARM, FPGA, Arduino and other MCU's TTL serial port to communicate with RS485 level devices\u003cbr\u003e2. Serial port expansion of the device\u003c\/p\u003e\u003cp\u003eInstructions for use:\u003cbr\u003e(Access to the MCU as an example, explaining how to connect each row of pins) TTL (UART) terminal\u003cbr\u003eVCC: connect to DC 3V or 5V.\u003cbr\u003eGND:: connect to GND\u003cbr\u003eTXD: connect to MCU.RX (signal flow: MCU.RX \u0026lt;\u0026lt; this module \u0026lt;\u0026lt; RS485)\u003cbr\u003eRXD: connect to MCU.TX (signal flow direction: MCU.TX\u0026gt;\u0026gt;this module\u0026gt;\u0026gt;RS485)\u003cbr\u003eRS485 end:\u003cbr\u003eA+: connect to RS485.\u003cbr\u003eB-: connect to RS485.\u003cbr\u003eGND: this GND can not be connected\u003c\/p\u003e\u003cp\u003ePackage include:\u003cbr\u003eModule*1\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S512d057e40fa4b55bffa39808e330df0i.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S2120cb8e09124993b69be388b19fa0f8O.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S2f31bc19958040089a1568d649226cb3X.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0c3aaafbb4fa4ece9638052d7e628e6fw.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sa391a434ae34435da4f14ee8067b96950.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S439af89669d645efb6dadcee5df2d44f1.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S7c7965e5320c4123b54902c580f1fa6eU.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sa784c9a74d2247a9917c541eef19d061S.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S010e23dff5da44f3bcfe9a84b2c1e6e3J.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S1fc0a3d19369433cb1c07ffe835936bab.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S13e205bcced645d8a55e87412f08c8aa5.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e","brand":"Yoeruyo","offers":[{"title":"5V","offer_id":55514581926187,"sku":"14:1254#5V","price":16.52,"currency_code":"USD","in_stock":true},{"title":"3.3V","offer_id":55514581958955,"sku":"14:173#3.3V","price":16.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/S512d057e40fa4b55bffa39808e330df0i.webp?v=1789012363","url":"https:\/\/yoeruyo.com\/products\/dc3-3v-5v-ttl-to-rs485-interconversion-module-serial-level-conversion-board-serial-hardware-auto-flow-control-74hc14-sp485-chip","provider":"Yoeruyo","version":"1.0","type":"link"}