{"product_id":"usb-to-4ch-rs485-converter","title":"Industrial USB To 4-Channel RS485 Converter","description":"\u003cp\u003eThis 4-Channel RS485 converter extends USB connectivity to four independent RS485 channels, allowing concurrent communication for each. It has multiple protection features to provide reliability in demanding projects. It is equipped with an onboard Transient Voltage Suppressor (TVS) that provides a defence against surge voltages and transient spike voltages, making it both lightning-proof and anti-electrostatic.\u003c\/p\u003e\n\u003cp\u003eSafety measures include resettable fuses and protection diodes that stabilise current and voltage outputs, providing resistance against over-current and over-voltage conditions, and enhancing shockproof performance. The converter features an onboard RS485 output terminal with 120R resistors, which can be enabled or disabled via a DIP switch to suit various application needs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote\u003c\/strong\u003e: It is not possible to control all four RS485 using only one ComPort\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eExtending USB to 4CH RS485, allows concurrent and independent communication for each channel\u003c\/li\u003e\n\u003cli\u003eTVS (Transient Voltage Suppressor), suppress surge voltage and transient spike voltage in the circuit, lightning-proof \u0026amp; anti-electrostatic\u003c\/li\u003e\n\u003cli\u003eResettable fuse and protection diodes, provide the current\/voltage stable outputs, provide over-current\/over-voltage proof, improve shockproof performance\u003c\/li\u003e\n\u003cli\u003eOnboard RS485 output terminal 120R resistors, enabled\/disabled via DIP switch\u003c\/li\u003e\n\u003cli\u003eAluminium alloy case with oxidation dull-polish surface, CNC process opening, solid and durable, well-crafted\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable width=\"920\" style=\"height: 342px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 197.5px;\"\u003eHost Port\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 253.963px;\"\u003eUSB\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 455.298px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 197.5px;\"\u003eDevice Port\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 253.963px;\"\u003eRS485\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 455.298px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 197.5px;\"\u003eBaudrate\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 253.963px;\"\u003e1200bps ~ 460800bps\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 455.298px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd rowspan=\"4\" style=\"height: 76px; width: 197.5px;\"\u003eUSB\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 253.963px;\"\u003eOperating voltage\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 455.298px;\"\u003e5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 253.963px;\"\u003eConnector\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 455.298px;\"\u003eUSB-B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 253.963px;\"\u003eProtection\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 455.298px;\"\u003e500mA resettable fuse, ESD protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 253.963px;\"\u003eTransmission distance\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 455.298px;\"\u003eAbout 5m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd rowspan=\"4\" style=\"height: 133px; width: 197.5px;\"\u003eRS485\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 253.963px;\"\u003eConnector\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 455.298px;\"\u003eScrew Terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 253.963px;\"\u003eProtection\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 455.298px;\"\u003e600W lightning proof and surge-suppress, 15KV ESD protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 38px;\"\u003e\n\u003ctd style=\"height: 38px; width: 253.963px;\"\u003eTransmission distance\u003c\/td\u003e\n\u003ctd style=\"height: 38px; width: 455.298px;\"\u003eMaximum communication distance is about 1200m\u003cbr\u003e(at a low rate, with 120R resistor turned on)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 57px;\"\u003e\n\u003ctd style=\"height: 57px; width: 253.963px;\"\u003eTransmission mode\u003c\/td\u003e\n\u003ctd style=\"height: 57px; width: 455.298px;\"\u003ePoint-to-multipoints\u003cbr\u003e(up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 197.5px;\"\u003eOperating Environment\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 253.963px;\"\u003eTemperature\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 455.298px;\"\u003e-40 ~ 85℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 197.5px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 253.963px;\"\u003eHumidity\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 455.298px;\"\u003e5%RH ~ 95%RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 38px;\"\u003e\n\u003ctd style=\"height: 38px; width: 197.5px;\"\u003eOperating System\u003c\/td\u003e\n\u003ctd style=\"height: 38px; width: 253.963px;\"\u003eWin7\/8\/8.1\/10\/11, Mac, Linux, Android\u003c\/td\u003e\n\u003ctd style=\"height: 38px; width: 455.298px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.waveshare.com\/wiki\/USB_TO_4CH_RS485\"\u003eProduct Wiki\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"nofollow noreferrer noopener\" class=\"external text\" href=\"https:\/\/files.waveshare.com\/upload\/3\/35\/CH344DS1.PDF\" target=\"_blank\"\u003eCH344 Datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePinout\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/3274\/files\/USB_TO_4_channel_RS485_Converter_features_1.jpg?v=1714136094\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ctable width=\"567\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"76\"\u003ePWR\u003c\/td\u003e\n\u003ctd width=\"491\"\u003eThe power indicator, lights up while the USB is connected and voltage is detected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eACT\u003c\/td\u003e\n\u003ctd\u003eStatus indicator lights up green while the driver is detected.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRXD(1~4)\u003c\/td\u003e\n\u003ctd\u003eBlue RXD indicators, light up when the device ports send data back\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e(corresponding to 4 channels respectively)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTXD(1~4)\u003c\/td\u003e\n\u003ctd\u003eBlue TXD indicators, light up when the USB port is sending data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e(corresponding to 4 channels respectively)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/3274\/files\/USB_TO_4_channel_RS485_Converter_contents_1.jpg?v=1714136094\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ctable width=\"266\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"68\"\u003ePE\u003c\/td\u003e\n\u003ctd width=\"198\"\u003eSignal ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA(1~4)\u003c\/td\u003e\n\u003ctd\u003eA(1~4) differential signal A+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB(1~4)\u003c\/td\u003e\n\u003ctd\u003eB(1~4) differential signal B-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x USB TO 4-CH RS485 Converter\u003c\/li\u003e\n\u003cli\u003e1x USB type A to type B cable ~1.2m\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Waveshare","offers":[{"title":"Default Title","offer_id":50847389090065,"sku":"WAV-25219","price":15.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/6285\/6209\/files\/industrial-usb-to-4-channel-rs485-converter-waveshare-wav-25219-42067968950467.jpg?v=1735212309","url":"https:\/\/abcd3032.myshopify.com\/hi\/products\/usb-to-4ch-rs485-converter","provider":"Tayyab Zak","version":"1.0","type":"link"}