{"product_id":"2-ch-rs485-to-rj45-ethernet-serial-server-dual-channels-rs485-independent-opera","title":"2-Ch RS485 to RJ45 Ethernet Serial Server, Dual channels RS485 independent operation","description":"\u003cdiv class=\"tab-section tab-pane active\" id=\"tab-description\" style=\"border-top: 0px;\"\u003e\n\u003cdiv class=\"std\"\u003e\n\u003cdiv class=\"richWrap\"\u003e\n\u003cdiv class=\"pdT\" style=\"text-align: center; padding: clamp(8px,2vw,15px); font-size: clamp(13px,2vw,16px); font-weight: 600; box-sizing: border-box; background: #F4F2F3;\"\u003e\n\u003ch2 class=\"richTitle\"\u003eIndustrial Isolated 2-Ch RS485 to RJ45 Ethernet Serial Server\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"hilitBlock2 round1234\" style=\"color: #fff; font-weight: bold; font-size: clamp(15px,3vw,18px); text-align: center; display: block; padding: 15px; word-wrap: break-word; background: #7099D1;\"\u003e2-Ch RS485 To Ethernet, Modbus\/MQTT\/JSON Support, Rail-mount Metal Case\u003c\/p\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-1.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e \u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-3.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdT\" style=\"text-align: center; padding: clamp(8px,2vw,15px); font-size: clamp(13px,2vw,16px); font-weight: 600; box-sizing: border-box; background: #EBECEF;\"\u003e\n\u003cp class=\"richTitle\" style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 class=\"richTitle\" style=\"text-align: center;\"\u003eFeatures at a glance\u003c\/h2\u003e\n\u003cdiv class=\"alignl pdTRBL\" style=\"text-align: center;\"\u003e\n\u003cp style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003eThis is a 2-ch RS485 device data acquisitor \/ IoT gateway designed for the industrial environment. Dual RS485 can work simultaneously without interfering with each other. It combines multi functions in one, including serial server, Modbus gateway, MQTT gateway, RS485 to JSON, and network switch. The module features dual RS485 and dual Ethernet ports (PoE function optional), uses a DC port (outer diameter: 5.5mm, inner diameter: 2.1mm) and screw terminal for power input. The case with rail-mount support, is small in size, easy to install, and cost-effective. It is suitable for applications like data acquisition, IoT gateway, safety \u0026amp; security IoT, and intelligent instrument monitoring...\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdT\" style=\"padding: clamp(8px, 2vw, 15px); font-size: clamp(13px, 2vw, 16px); font-weight: 600; box-sizing: border-box; background: rgb(235, 236, 239); text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e       \u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eVersion Options\u003c\/h2\u003e\n\u003cdiv class=\"richGridWrap richGridWrap-2c richGridWrap-valignTop mgnTB\" style=\"display: flex; flex-wrap: wrap; gap: 20px; justify-content: center; align-items: flex-start;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 250px; max-width: 400px; text-align: center;\"\u003e\n\u003cimg class=\"round1234\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-5-1.jpg\" style=\"max-width: 100%; width: 100%; height: auto; display: block;\"\u003e\n\u003cp style=\"font-size: clamp(14px,2vw,16px); font-weight: 400; line-height: 1.7; margin: 10px 0; color: #555; text-align: left; word-wrap: break-word;\"\u003e\u003cstrong\u003e2-CH RS485 TO ETH (B)\u003c\/strong\u003e\u003cbr\u003e2-ch RS485 + Common network port + Electrical isolation\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 250px; max-width: 400px; text-align: center;\"\u003e\n\u003cimg class=\"round1234\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-5-2.jpg\" style=\"max-width: 100%; width: 100%; height: auto; display: block;\"\u003e\n\u003cp style=\"font-size: clamp(14px,2vw,16px); font-weight: 400; line-height: 1.7; margin: 10px 0; color: #555; text-align: left; word-wrap: break-word;\"\u003e\u003cstrong\u003e2-CH RS485 TO POE ETH (B)\u003c\/strong\u003e\u003cbr\u003e2-ch RS485 + PoE network port + Electrical isolation\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto; -webkit-overflow-scrolling: touch; width: 100%; margin: 12px 0;\"\u003e\n\u003ctable class=\"tabSty-2 mgnTB subBlock alignl\" style=\"min-width: 600px; border-collapse: collapse; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth rowspan=\"2\" style=\"background: #34495e; color: #fff; padding: 10px 12px; border: 1px solid #555; font-weight: 600; white-space: nowrap; font-size: clamp(12px,1.8vw,14px);\"\u003e\u003c\/th\u003e\n\u003cth style=\"background: #34495e; color: #fff; padding: 10px 12px; border: 1px solid #555; font-weight: 600; white-space: nowrap; font-size: clamp(12px,1.8vw,14px);\"\u003e2-CH RS485 TO ETH (B)\u003c\/th\u003e\n\u003cth style=\"background: #34495e; color: #fff; padding: 10px 12px; border: 1px solid #555; font-weight: 600; white-space: nowrap; font-size: clamp(12px,1.8vw,14px);\"\u003e2-CH RS485 TO POE ETH (B)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e2-CH RS485 + Common network port + Electrical isolation\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e2-CH RS485 + PoE network port + Electrical isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003eSerial server, Modbus Gateway, MQTT Gateway\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eBasic Function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003eBi-directional transparent data transmission between RS485 and Ethernet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eCommunication interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003eRS485 port × 2, Ethernet port × 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003ePower supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003eDC 5.5 power port, 6 ~ 40V DC screw terminal\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003eDC 5.5 power port, 6 ~ 40V DC screw terminal, or PoE port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eIsolation Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003ePower isolation, Signal isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"3\" style=\"background: #34495e; color: #fff; padding: 10px 12px; border: 1px solid #555; font-weight: 600; white-space: nowrap; font-size: clamp(12px,1.8vw,14px);\"\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eEthernet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003eRJ45\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003eRJ45 with PoE support, IEEE 802.3af compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e10 \/ 100M auto-negotiation RJ45 connector, 2 KV surge protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eSerial port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003eIsolated RS485 (the 2 channels can receive and transmit independently at the same time)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"3\" style=\"background: #34495e; color: #fff; padding: 10px 12px; border: 1px solid #555; font-weight: 600; white-space: nowrap; font-size: clamp(12px,1.8vw,14px);\"\u003e\u003cstrong\u003eSerial specification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eBaudrate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e300 ~ 115200 bps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eParity bit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003enone, odd, even, mark, space\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eData bit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e5 ~ 9 bits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eFlow control\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"3\" style=\"background: #34495e; color: #fff; padding: 10px 12px; border: 1px solid #555; font-weight: 600; white-space: nowrap; font-size: clamp(12px,1.8vw,14px);\"\u003e\u003cstrong\u003eSoftware\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eProtocol\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003eETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003ehost, web browser, device management functions library\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eCommunication method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003eTCP\/IP direct communication, VCOM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eOperating mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003eTCP server, TCP client (coexisting with TCP server), UDP, UDP multicast\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth colspan=\"3\" style=\"background: #34495e; color: #fff; padding: 10px 12px; border: 1px solid #555; font-weight: 600; white-space: nowrap; font-size: clamp(12px,1.8vw,14px);\"\u003e\u003cstrong\u003eEnvironment requirement\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eOperating temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e-40℃ ~ 85℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eHumidity range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e5% ~ 95% relative humidity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"padding: 8px 12px; border: 1px solid #ccc; font-size: clamp(12px,1.8vw,14px); word-wrap: break-word;\"\u003eL × W × H: 78.0 × 72.5 × 24.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdT\" style=\"padding: clamp(8px, 2vw, 15px); font-size: clamp(13px, 2vw, 16px); font-weight: 600; box-sizing: border-box; background: rgb(233, 240, 248); text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003ePrimary function\u003c\/h2\u003e\n\u003cp class=\"richDesc\" style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003ebi-directional transparent data transmission between RS485 and Ethernet\u003c\/p\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-7.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdT\" style=\"padding: clamp(8px, 2vw, 15px); font-size: clamp(13px, 2vw, 16px); font-weight: 600; box-sizing: border-box; background: rgb(225, 237, 251); text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eMulti Power Supply Options\u003c\/h2\u003e\n\u003cp class=\"richDesc\" style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003eSupport PoE Ethernet port power supply*, Suitable for IEEE 802.3af PoE standard\u003cbr\u003eSupport Screw Terminal and DC Power Port for Power Supply, DC 6~40V \u003cbr\u003eWide Voltage Range Input\u003c\/p\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-9.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003cp class=\"note\" style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003e* This function is only available on the PoE version\u003c\/p\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdT\" style=\"padding: clamp(8px, 2vw, 15px); font-size: clamp(13px, 2vw, 16px); font-weight: 600; box-sizing: border-box; background: rgb(232, 239, 247); text-align: center;\"\u003e\n\u003cp class=\"richTitle\"\u003e \u003c\/p\u003e\n\u003ch2 class=\"richTitle\"\u003eSupport Ethernet Port Cascade\u003c\/h2\u003e\n\u003cp class=\"richDesc\" style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word;\"\u003eOnboard 2-ch Ethernet Ports for communication and cascade\u003cbr\u003eEither one can be used for dual serial server network communication, while the other one can be used for cascading or communication with other devices\u003c\/p\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-11.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"msg msg_warning\" style=\"text-align: center;\"\u003e* Note: Each module in the cascade needs to be powered individually. The working current of the module is 12V\/150mA (MAX) and can be cascaded up to 8.\u003c\/div\u003e\n\u003cdiv class=\"msg msg_warning\" style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"pdT\" style=\"padding: clamp(8px, 2vw, 15px); font-size: clamp(13px, 2vw, 16px); font-weight: 600; box-sizing: border-box; background: rgb(248, 248, 248); text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eRail-mount support\u003c\/h2\u003e\n\u003cp class=\"richDesc\" style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003eIndustrial-grade rail design, compact size, easy installation, cost-effective\u003c\/p\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-13.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdT\" style=\"padding: clamp(8px, 2vw, 15px); font-size: clamp(13px, 2vw, 16px); font-weight: 600; box-sizing: border-box; background: rgb(212, 226, 237); text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eModbus gateway support\u003c\/h2\u003e\n\u003cp class=\"richDesc\" style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003esuitable for Modbus networking upgrade, Can Be Used With specific Configuration Software\u003c\/p\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-15.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdT\" style=\"padding: clamp(8px, 2vw, 15px); font-size: clamp(13px, 2vw, 16px); font-weight: 600; box-sizing: border-box; background: rgb(160, 216, 243); text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eMulti communication modes\u003c\/h2\u003e\n\u003cp class=\"richDesc\" style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003esupports TCP server \/ TCP client \/ UDP multicast \/ UDP mode\u003c\/p\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-17-1.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e \u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-17-2.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003cp class=\"note\" style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003e* Note: This module is dual-channel, and each channel supports the above functions separately\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eMQTT\/JSON to Modbus\u003c\/h2\u003e\n\u003cp class=\"richDesc\" style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003emore flexible conversion between different protocols\u003c\/p\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-19.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003cdiv class=\"alignl subBlock pdTRBL2\"\u003e\n\u003cp style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003eWhen used as MQTT gateway, the devices can upload serial data to MQTT server by MQTT protocol through transparent transmission, supported servers including Baidu Cloud MQTT, Alibaba Cloud MQTT, China Mobile OneNet, etc. The acquired Modbus RTU or non-standard serial data can be parsed into JSON format and packaged into MQTTdata packet for uploading.\u003c\/p\u003e\n\u003cp style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003eWhen used as JSON data acquisition gateway, the devices can be connected to data acquisition instruments through RS485 connection, then acquire data automatically, convert the data into JSON format, and finally post it to server. The acquired data supports Modbus RTU 645 instrument 97 version, 645 instrument 07 version, as well as sorts of non-standard RS485 protocols. The uploaded data format can be configured via host, and the JSON upload protocol can be MQTT protocol, HTTP POST protocol, HTTP GET protocol, and so on.\u003c\/p\u003e\n\u003cp style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdT\" style=\"padding: clamp(8px, 2vw, 15px); font-size: clamp(13px, 2vw, 16px); font-weight: 600; box-sizing: border-box; background: rgb(230, 244, 255); text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eMulti hosts roll-polling support\u003c\/h2\u003e\n\u003cp class=\"richDesc\" style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003edifferent network devices will be identified and responsed respectively,\u003cbr\u003eno more crosstalk issue while communicating with multi network devices\u003c\/p\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-21.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdT\" style=\"padding: clamp(8px, 2vw, 15px); font-size: clamp(13px, 2vw, 16px); font-weight: 600; box-sizing: border-box; background: rgb(218, 238, 247); text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eUser-defined heartbeat\/registration packet\u003c\/h2\u003e\n\u003cp class=\"richDesc\" style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003eeasy for cloud communication and device identification\u003c\/p\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-23.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdT\" style=\"padding: clamp(8px, 2vw, 15px); font-size: clamp(13px, 2vw, 16px); font-weight: 600; box-sizing: border-box; background: rgb(0, 0, 0); color: rgb(255, 255, 255) !important; text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\" style=\"color: #ffffff !important;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eNTP protocol support\u003c\/h2\u003e\n\u003cp class=\"richDesc\" style=\"color: #ffffff !important;\"\u003egetting network time info for serial output or data upload\u003c\/p\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-25.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdT\" style=\"padding: clamp(8px, 2vw, 15px); font-size: clamp(13px, 2vw, 16px); font-weight: 600; box-sizing: border-box; background: rgb(230, 244, 255); text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eMulti configuration methods\u003c\/h2\u003e\n\u003cp class=\"richDesc\" style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003esupports Web browser configuration, obtaining dynamic IP via DHCP,\u003cbr\u003eDNS protocol connected domain server address\u003c\/p\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-27.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp class=\"richTitle\"\u003e \u003c\/p\u003e\n\u003ch2 class=\"richTitle\"\u003eMultiple Protection, Safe And Stable\u003c\/h2\u003e\n\u003cp class=\"alignl pdTRBL\" style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003eOnboard power supply and signal isolation, it can provide stable isolation voltage with high reliability and strong anti-interference. Built-in TVS (transient voltage suppression tube) can effectively suppress the surge voltage and transient peak voltage in the circuit, lightningproof \u0026amp; ESD protection. Built-in resettable fuse and protection diode to ensure stable output of current and voltage, prevents over-current and over-voltage proof, improve shock proof performance\u003c\/p\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-29.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eAluminium Alloy Enclosure\u003c\/h2\u003e\n\u003cp class=\"richDesc\" style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003eAluminium Alloy Enclosure With Sand Blasting And Anodic Oxidation\u003cbr\u003eSolid And Durable, Fashion And Good Hand Feeling\u003c\/p\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-31.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eInterface introduction\u003c\/h2\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-inter.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eProduct show\u003c\/h2\u003e\n\u003cimg class=\"round1234\" src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-33.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eOutline dimensions\u003c\/h2\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-size.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pdT\" style=\"padding: clamp(8px, 2vw, 15px); font-size: clamp(13px, 2vw, 16px); font-weight: 600; box-sizing: border-box; background: rgb(228, 238, 250); text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eSupport Batch Customization\u003c\/h2\u003e\n\u003cp class=\"richDesc\" style=\"font-size: clamp(14px, 2vw, 16px); font-weight: 400; line-height: 1.7; margin: 10px 0px; color: rgb(85, 85, 85); overflow-wrap: break-word; text-align: center;\"\u003eSupport software and hardware customization\u003cbr\u003eIncluding hardware interface, LOGO, label, case and web page, etc.\u003c\/p\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-ETH-B-details-35.jpg\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv class=\"richTitle\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2 class=\"richTitle\"\u003eResources \u0026amp; Services\u003c\/h2\u003e\n\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/LCD\/common\/res_banner.png\" style=\"display: block; margin: 20px auto; max-width: 100%; height: auto;\"\u003e\n\u003cdiv class=\"bgGrey\"\u003e\n\u003cstrong\u003eWiki: \u003c\/strong\u003e\u003ca href=\"https:\/\/www.waveshare.com\/wiki\/2-CH_RS485_TO_ETH_(B)\" id=\"tab-wiki\" target=\"_blank\"\u003ewww.waveshare.com\/wiki\/2-CH_RS485_TO_ETH_(B)\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"tab-section tab-pane\" id=\"tab-package_content\" style=\"border-top: 0px;\"\u003e\n\u003cp style=\"font-size: clamp(18px, 4vw, 30px); color: rgb(44, 62, 80); font-weight: bold; margin: 24px 0px 14px; border-bottom: 3px solid rgb(52, 152, 219); padding-bottom: 8px; line-height: 1.3; text-align: center;\"\u003e \u003c\/p\u003e\n\u003cdiv class=\"std\"\u003e\n\u003ch2 style=\"font-size: clamp(18px, 4vw, 30px); color: rgb(44, 62, 80); font-weight: bold; margin: 24px 0px 14px; border-bottom: 3px solid rgb(52, 152, 219); padding-bottom: 8px; line-height: 1.3; text-align: center;\"\u003ePackage Content\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e2-CH RS485 TO POE ETH (B)\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e2-CH RS485 TO POE ETH (B) x1\u003cimg src=\"https:\/\/www.waveshare.com\/img\/devkit\/accBoard\/2-CH-RS485-TO-ETH-B\/2-CH-RS485-TO-POE-ETH-B-details-pack_220.jpg\" style=\"margin: 20px auto; max-width: 100%; height: auto; display: block;\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Waveshare","offers":[{"title":"Default Title","offer_id":51819537760573,"sku":"WVSH0597","price":4799.99,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0014\/4313\/5560\/files\/2-ch-rs485-to-poe-eth-b-1.jpg?v=1781154379","url":"https:\/\/thinkrobotics.com\/products\/2-ch-rs485-to-rj45-ethernet-serial-server-dual-channels-rs485-independent-opera","provider":"ThinkRobotics.com","version":"1.0","type":"link"}