{"product_id":"rainbowlink-v2-4-channel-isolated-usb-to-serial-converter-rs485-rs232-dual-ttl-with-built-in-12v-power-supply-df-tel0190","title":"RainbowLink V2: 4-Channel Isolated USB to Serial Converter (RS485\/RS232\/Dual TTL) with Built-in 12V Power Supply","description":"\u003ch3 data-start=\"229\" data-end=\"655\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"229\" data-end=\"655\"\u003eThe RainbowLink V2 is a versatile 4-channel USB to serial converter designed for industrial, embedded, and field-testing applications. Unlike standard USB converters, it features a built-in boost power supply, converting USB 5V input into 12V (800mA), 5V (2A), and 3.3V (200mA) outputs—allowing users to power and debug sensors, PLCs, and microcontrollers directly from a laptop without an external power source.\u003c\/p\u003e\n\u003cp data-start=\"657\" data-end=\"741\"\u003eWith four independent channels, RainbowLink V2 replaces multiple USB adapters:\u003c\/p\u003e\n\u003cul data-start=\"742\" data-end=\"1006\"\u003e\n\u003cli data-section-id=\"sizcab\" data-start=\"742\" data-end=\"826\"\u003eChannel 1 – RS485 (Isolated): For long-distance industrial PLCs and sensors.\u003c\/li\u003e\n\u003cli data-section-id=\"1bd2oi3\" data-start=\"827\" data-end=\"913\"\u003eChannel 2 – RS232 (Isolated): For legacy devices and standard serial hardware.\u003c\/li\u003e\n\u003cli data-section-id=\"uhid7o\" data-start=\"914\" data-end=\"1006\"\u003eChannels 3 \u0026amp; 4 – TTL\/UART: For microcontrollers, GPS modules, and other TTL devices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1008\" data-end=\"1366\"\u003eEngineered for harsh environments, the V2 features full signal and power isolation for RS485 and RS232, protecting computers and prototypes from voltage surges, ground loops, and electrical noise. Additional features include smart port naming for easy identification in Device Manager and lever-type spring terminals for fast, tool-free wiring.\u003c\/p\u003e\n\u003cp data-start=\"1368\" data-end=\"1643\"\u003eIdeal for outdoor sensor testing, industrial maintenance, R\u0026amp;D prototyping, and embedded system debugging, RainbowLink V2 combines reliability, safety, and versatility in a compact 77mm × 57mm × 21mm enclosure compatible with Windows, Linux, macOS, and Raspberry Pi.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eIntegrated Portable Power Supply\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eFacilitates testing of 12V industrial sensors in the field. Unlike standard converters that only transmit data, RainbowLink V2 features a built-in boost converter. The device converts USB 5V input into 12V (800mA), 5V (2A), and 3.3V (200mA) outputs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApplication: Powers and debugs water level sensors, soil meters, or PLCs directly from a laptop USB port without requiring an external bench power supply or wall outlet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFour Channels, Simultaneous Operation\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eReplaces four separate USB dongles with one robust device. All channels operate independently:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChannel 1: RS485 (Fully Isolated) – For industrial PLCs and long-distance sensors.\u003c\/li\u003e\n\u003cli\u003eChannel 2: RS232 (Fully Isolated) – For legacy hardware and standard serial devices.\u003c\/li\u003e\n\u003cli\u003eChannel 3 \u0026amp; 4: TTL (UART) – For microcontrollers, GPS modules, and sensors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/data\/TEL0190\/Interface.png\" alt=\"Four Channels of RainbowLink V2\" title=\"Four Channels of RainbowLink V2\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eFigure: Four Channels of RainbowLink V2\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eIndustrial-Grade Protection (V2 Upgrade)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003ePrevents damage to connected computing equipment. The V2 edition features Full Signal \u0026amp; Power Isolation for the RS485 and RS232 interfaces. This critical feature blocks high-voltage surges, ground loops, and electrical noise, ensuring computers and prototypes remain safe during harsh industrial debugging.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/data\/TEL0190\/TEL0190-TABLE-1.jpg\" alt=\"Camparsion Table: Generic USB Converter VS RainbowLink V1 VS RainbowLink V2\" title=\"Camparsion Table: Generic USB Converter VS RainbowLink V1 VS RainbowLink V2\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eCamparsion Table: Generic USB Converter VS RainbowLink V1 VS RainbowLink V2\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eEnhanced Usability and Design\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSmart Port Naming: The dedicated driver clearly names the ports in Device Manager (e.g., \"RainbowLink RS485\"), enabling precise identification of the correct COM port without guesswork.\u003c\/li\u003e\n\u003cli\u003eTool-Free Wiring: Equipped with high-quality lever-type spring terminals. Allows for quick connections by simply flipping the lever, inserting the wire (12-22AWG), and snapping it shut.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eApplications:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOutdoor Sensor Testing: Debugging 12V RS485 soil sensors using only a laptop.\u003c\/li\u003e\n\u003cli\u003eIndustrial Maintenance: Safely connecting to high-voltage PLCs via isolated RS232.\u003c\/li\u003e\n\u003cli\u003eR\u0026amp;D Prototyping: Monitoring data from an ESP32 (TTL) and a GPS module (TTL) simultaneously.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eModel: RainbowLink V2 (TEL0190)\u003c\/li\u003e\n\u003cli\u003eInput Interface: USB Type-C (5V)\u003c\/li\u003e\n\u003cli\u003eTotal Channels: 4 Independent Channels\u003c\/li\u003e\n\u003cli\u003eCommunication Protocols: 1x RS485 (Isolated), 1x RS232 (Isolated), 2x TTL\u003c\/li\u003e\n\u003cli\u003ePower Output: 12V @ 800mA\u003c\/li\u003e\n\u003cli\u003eIsolation Voltage: Signal \u0026amp; Power Isolation (for RS485 \u0026amp; RS232)\u003c\/li\u003e\n\u003cli\u003eBaud Rate Support: 2400bps - 128000bps\u003c\/li\u003e\n\u003cli\u003eOperating Systems: Windows, Linux (including Raspberry Pi), MacOS\u003c\/li\u003e\n\u003cli\u003eDimensions: 77mm × 57mm × 21mm (Fully Enclosed PC Housing)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/wiki.dfrobot.com\/SKU_TEL0190_RainbowLink%20V2\" target=\"_blank\"\u003eProduct wiki\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/dfimg.dfrobot.com\/7c7a88fa72d54b0b890fae93423ddda5\/wikien\/2259390980a34c9e17e5e7de89e56d3b.zip\" target=\"_blank\"\u003eDriver Download: TEL0190-rainbowLinkv2-driver.zip\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eProduct Includes:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRainbowLink V2 4 Channel USB to Serial Converter x1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":42343285653586,"sku":"DF-TEL0190","price":54.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/0383\/files\/TEL0190_Main_01.jpg?v=1774162219","url":"https:\/\/www.pakronics.co.nz\/products\/rainbowlink-v2-4-channel-isolated-usb-to-serial-converter-rs485-rs232-dual-ttl-with-built-in-12v-power-supply-df-tel0190","provider":"Pakronics®","version":"1.0","type":"link"}