{"product_id":"r221a02-db9-female-male-rs232-uart-switch-board-dc-12v-com-serial-port-relay-module-plc","title":"R221A02 DB9 Female\/Male RS232 UART Switch Board DC 12V COM Serial port Relay Module PLC","description":"\u003cdiv\u003eR221A02 from eletechsup\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 22px;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003eProduct Name: DB9 Female\/Male RS232 UART Switch Board DC 12V COM Serial port Relay Module PLC\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"color: #000000; font-size: medium;\"\u003e\n\u003cdiv\u003e\u003cspan style=\"font-family: verdana; font-size: 14.0pt;\"\u003ePackage inlcuded:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan style=\"font-family: times new roman; font-size: 19.0px;\"\u003e\u003cspan style=\"font-family: verdana; font-size: 14.0pt;\"\u003e\u003cspan style=\"font-size: 14.0pt; font-family: times new roman;\"\u003e\u003cspan style=\"font-size: 14.0pt;\"\u003e 1 x \u003cspan style=\"font-size: 14.0pt;\"\u003eDC 12V 2Channel RS232 Relay Board(\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003eDB9 Female\/Male Interface)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"color: #000000; font-size: medium;\"\u003e   \u003cimg src=\"https:\/\/i.ebayimg.com\/00\/s\/MTA1MFgxMDUw\/z\/OzkAAOSwBiNeYFmu\/$_10.JPG\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"color: #000000; font-size: medium;\"\u003e\u003cspan style=\"font-family: times new roman; font-size: 18.0pt;\"\u003eDescription: \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"color: #000000; font-size: medium;\"\u003e\u003cspan style=\"font-family: times new roman; font-size: 18.0pt;\"\u003e \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"color: #000000; font-size: medium;\"\u003e\n\u003cdiv style=\"font-size: 14.0pt;\"\u003e\n\u003cdiv style=\"font-family: times new roman;\"\u003e\n\u003cdiv\u003e\u003cspan style=\"color: #0000ff;\"\u003e2 Channel DB9(Female \/Male) RS232 Relay Module; \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color: #0070c0;\"\u003ePower input: DC 12V(8.5-13.5V).\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color: #0070c0;\"\u003ePC Serial ports RS232 Control Relay;\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color: #0070c0;\"\u003ePower indicator : LED lights;\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color: #0070c0;\"\u003eOutput indication : relay output with LED indicators,easy to see working status of the relay;\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color: #0070c0;\"\u003eCommunication protocol: UART protocol communication, baud rate 9600kpbs, 8 data bits, one stop bit, no parity. Each data frame contains eight bytes. Two-way data transmission.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color: #0070c0;\"\u003eBaud rate 9600kbps, 8 data bits, one stop bit, no parity. Each data frame contains eight bytes.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan style=\"color: #0070c0;\"\u003ePCB Size : 71x47mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 22px;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003eNote: There are two types of DB9 interfaces.\u003c\/span\u003e\u003cspan style=\"color: #0000ff;\"\u003eFemale interfaces usually are common. \u003c\/span\u003e\u003cspan style=\"color: #ff0000;\"\u003ePlease choose the correct DB9 interface.\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e     \u003cimg src=\"https:\/\/i.ebayimg.com\/00\/s\/MTA1MFgxMDUw\/z\/K2QAAOSwqUteYFmq\/$_10.JPG\"\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003e\u003cstrong\u003e1\u003cspan\u003e Control \u003c\/span\u003e\u003cspan\u003ecommand\u003c\/span\u003es\u003cspan\u003e：\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003e\u003cspan\u003e1.\u003c\/span\u003e Reading status\u003cspan\u003e（\u003c\/span\u003ereading the satus of the relay (on\/off)\u003cspan\u003e）\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003e\u003cspan\u003e0x55 0x5\u003c\/span\u003e6\u003cspan\u003e 0x00 0x00 0x00 0x00 0x00 0xA\u003c\/span\u003eB\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e \u003c\/div\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003e\u003cspan\u003e2.\u003c\/span\u003e\u003cspan\u003e Relay \u003c\/span\u003e\u003cspan\u003eopen\u003c\/span\u003e (issue this command ，Relay open , COM connect to NO ）\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003eChannel 1 ：\u003cspan\u003e0x55 0x5\u003c\/span\u003e6\u003cspan\u003e 0x00 0x00 0x00 0x0\u003c\/span\u003e1 \u003cspan\u003e0x01 0x\u003c\/span\u003eAD\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003eChannel 2 ：\u003cspan\u003e0x55 0x5\u003c\/span\u003e6\u003cspan\u003e 0x00 0x00 0x00 0x0\u003c\/span\u003e2 \u003cspan\u003e0x01 0x\u003c\/span\u003eAE\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e \u003c\/div\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003e3\u003cspan\u003e.\u003c\/span\u003e\u003cspan\u003e Relay \u003c\/span\u003eclose (issue this command ，Relay close , COM disconnect NO , and COM connect to NC ）\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003eChannel 1 ：\u003cspan\u003e0x55 0x5\u003c\/span\u003e6\u003cspan\u003e 0x00 0x00 0x00 0x0\u003c\/span\u003e1 \u003cspan\u003e0x0\u003c\/span\u003e2\u003cspan\u003e 0x\u003c\/span\u003eAE\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003eChannel 2 ：\u003cspan\u003e0x55 0x5\u003c\/span\u003e6\u003cspan\u003e 0x00 0x00 0x00 0x0\u003c\/span\u003e2 \u003cspan\u003e0x0\u003c\/span\u003e2\u003cspan\u003e 0x\u003c\/span\u003eAF\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003e4\u003cspan\u003e.\u003c\/span\u003e Relay toggle（\u003cspan\u003eRelay status \u003c\/span\u003e\u003cspan\u003ereversal\u003c\/span\u003e，if COM connect to NO，this commands will \u003cspan\u003eDisconnect\u003c\/span\u003e COM to NO and Reverse COM connect to NC，\u003cspan\u003eand vice versa\u003c\/span\u003e）\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003eChannel 1 ：\u003cspan\u003e0x55 0x5\u003c\/span\u003e6\u003cspan\u003e 0x00 0x00 0x00 0x0\u003c\/span\u003e1 \u003cspan\u003e0x0\u003c\/span\u003e3\u003cspan\u003e 0x\u003c\/span\u003eAF\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003eChannel 2 ：\u003cspan\u003e0x55 0x5\u003c\/span\u003e6\u003cspan\u003e 0x00 0x00 0x00 0x0\u003c\/span\u003e2 \u003cspan\u003e0x0\u003c\/span\u003e3\u003cspan\u003e 0x\u003c\/span\u003eB0\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e \u003c\/div\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003e5\u003cspan\u003e.\u003c\/span\u003e Relay momentary（Relay COM connect to NO，disconnect after 200MS ）\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003eChannel 1 ：\u003cspan\u003e0x55 0x5\u003c\/span\u003e6\u003cspan\u003e 0x00 0x00 0x00 0x0\u003c\/span\u003e1 \u003cspan\u003e0x0\u003c\/span\u003e4\u003cspan\u003e 0x\u003c\/span\u003eB0\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003eChannel 2 ：\u003cspan\u003e0x55 0x5\u003c\/span\u003e6\u003cspan\u003e 0x00 0x00 0x00 0x0\u003c\/span\u003e2 \u003cspan\u003e0x0\u003c\/span\u003e4\u003cspan\u003e 0x\u003c\/span\u003eB1\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003eOnce issue a command, will have a return fame , 7th byte of return fame mean the satus of realy .\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003e2\u003c\/span\u003e return command\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e \u003c\/div\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003e1\u003cspan\u003e、R\u003c\/span\u003eeturn relay open（return this command，mean COM connect to NO ）\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003eChannel 1 : \u003cspan\u003e0x\u003c\/span\u003e33\u003cspan\u003e 0x\u003c\/span\u003e3C\u003cspan\u003e 0x00 0x00 0x00 0x0\u003c\/span\u003e1\u003cspan\u003e 0x01\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e0x\u003c\/span\u003e71\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003eChannel 2 : \u003cspan\u003e0x\u003c\/span\u003e33\u003cspan\u003e 0x\u003c\/span\u003e3C\u003cspan\u003e 0x00 0x00 0x00 0x0\u003c\/span\u003e2\u003cspan\u003e 0x01\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e0x\u003c\/span\u003e72\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e \u003c\/div\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003e2\u003cspan\u003e、R\u003c\/span\u003eeturn relay close（return this command，mean COM disconnect NO , and COM connect to NC ）\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003eChannel 1 : \u003cspan\u003e0x\u003c\/span\u003e33\u003cspan\u003e 0x\u003c\/span\u003e3C\u003cspan\u003e 0x00 0x00 0x00 0x0\u003c\/span\u003e1\u003cspan\u003e 0x0\u003c\/span\u003e2 \u003cspan\u003e0x\u003c\/span\u003e72\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial, Helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan\u003eChannel 2 : \u003cspan\u003e0x\u003c\/span\u003e33\u003cspan\u003e 0x\u003c\/span\u003e3C\u003cspan\u003e 0x00 0x00 0x00 0x0\u003c\/span\u003e2\u003cspan\u003e 0x0\u003c\/span\u003e2 \u003cspan\u003e0x\u003c\/span\u003e73\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-family: times new roman;\"\u003e\n\u003cdiv style=\"font-size: 14.0pt;\"\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-family: times new roman; font-size: 14.0pt;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003eInstruction manual Please ask us after the purchase\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"color: #000000; font-size: medium;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"color: #000000; font-size: medium;\"\u003e\n\u003cstrong style=\"font-size: 14.0pt; font-family: times new roman;\"\u003eApplication\u003cbr\u003e \u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14.0pt; font-family: times new roman;\"\u003eRemote control, remote measurement system; \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14.0pt; font-family: times new roman;\"\u003eWireless meter\u003c\/span\u003e \u003cspan style=\"font-size: 14.0pt; font-family: times new roman;\"\u003e;\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"color: #000000; font-size: medium;\"\u003eSmart Home,Home Automation ,Wiser Home;\u003cbr\u003e\u003cspan style=\"font-size: 14.0pt; font-family: times new roman;\"\u003eAccess control \u003c\/span\u003e \u003cspan style=\"font-size: 14.0pt; font-family: times new roman;\"\u003e;\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14.0pt; font-family: times new roman;\"\u003eIdentification system\u003c\/span\u003e \u003cspan style=\"font-size: 14.0pt; font-family: times new roman;\"\u003e;\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14.0pt; font-family: times new roman;\"\u003eData collection; \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14.0pt; font-family: times new roman;\"\u003eIT household appliance\u003c\/span\u003e \u003cspan style=\"font-size: 14.0pt; font-family: times new roman;\"\u003e;\u003c\/span\u003e\u003cbr\u003eAs a PLC expansion board\u003cbr\u003e\u003cspan style=\"font-size: 14.0pt; font-family: times new roman;\"\u003eIntelligence household appliance;\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14.0pt; font-family: times new roman;\"\u003eBaby monitoring system;\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/i.ebayimg.com\/00\/s\/MTA1MFgxMDUw\/z\/B10AAOSwY4NeYFmq\/$_10.JPG\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"color: #000000; font-size: medium;\"\u003e\u003cstrong style=\"font-family: times new roman; font-size: 24.0px;\"\u003eTypial application :\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"color: #000000; font-size: medium;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"color: #000000; font-size: medium;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"color: #000000; font-size: medium;\"\u003e\u003cspan style=\"font-family: arial; font-size: 18.0px; line-height: 27.0px;\"\u003eDC 1-110V OR AC 85-265V control circuit,Wiring diagram below(Note:If not DC 12V load, need another DC 12V power supply). ''LOAD'' may be LED lights, fans, motors and other DC AC equipment\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"color: #000000; font-size: medium;\"\u003e\u003cimg src=\"https:\/\/i.ebayimg.com\/00\/s\/MTA1MFgxMDUw\/z\/cbcAAOSwLIpeYFmq\/$_10.JPG\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"color: #000000; font-size: medium;\"\u003e \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Eletechsup Original Factory Official‌ Store ","offers":[{"title":"Male","offer_id":46537011495069,"sku":"TB351_male","price":5.99,"currency_code":"USD","in_stock":true},{"title":"Female","offer_id":46537011527837,"sku":"TB351","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0707\/8622\/0189\/files\/10_3a6648c7-6ce4-4889-b2aa-72084f4cf8c9.jpg?v=1740746344","url":"https:\/\/eletechsup.com\/es\/products\/r221a02-db9-female-male-rs232-uart-switch-board-dc-12v-com-serial-port-relay-module-plc","provider":"Eletechsup Ready Stock Factory Store 6-10days to Worldwide","version":"1.0","type":"link"}