{"product_id":"dc-12v-rs232-serial-port-delay-relay-switch-module-pc-com-db9-arm-mcu-uart-remote-control-board","title":"DC 12V RS232 Serial Port Delay Relay Switch Module PC COM DB9 ARM MCU UART Remote Control Board","description":"\u003cstrong\u003eDescription:?\u003c\/strong\u003e         ? ? ?         - Working voltage: 12V?         - (DC12V)Standby current (all relays closed) 16MA, relay open 47MA,?         - Two serial ports: RS232 DB9 interface, TTL 232 interface         - ''Open'' ''Close'' ''Momentary'' ''Self-locking'' ''Interlock'' ''Delay''(Only AT command)? 6 Commands         - Two kinds of commands: AT command and 8-byte command, the two commands are automatically recognized, no need to switch.         - Under the ''Delay'' command ,the maximum delay is 9999 seconds(Only AT command)         - Size: 56.5 *31.5 * 17.5mm         - Maximum load: 10A \/ 250VAC, 10A \/ 125VAC, 10A \/ 30VDC, 10A \/ 28VDC, 10A \/ 12VDC         ?         \u003cstrong\u003eGlossary:\u003c\/strong\u003e         ?         NO: Relay normally open contact         COM: Relay common contact         NC: Relay normally closed contact         Open: NO connection COM, NC disconnect COM         Close: NO disconnect COM, NC connection COM         Momentary : Enter the Momentary command, the Rreceiver Relay is Open, delay of 0.5 seconds after, Relay is Close;         Toggle? : Enter the Toggle command, the Rreceiver Relay is Open, Enter the Toggle command again, Relay is Close;         Latched : Enter the Channel 1 Latched command, the receiver Channel 1 is Open, the Channel 2 is Close.         Enter the Channel 2 Latched command the receiver Channel 2 is Open, the Channel 1 is Close.         Delay : Enter the Delay command, the Rreceiver Relay is Open, delay of 0-9999 seconds(MODBUS command is 0-255 seconds )after, Relay is Close;         During the delay, Eter the Close command, immediately close the relay         ?         \u003cstrong\u003eApplication:\u003c\/strong\u003e         ??         Remote control, remote measurement system;?         Wireless meter? ;         Smart Home,Home Automation ,Wiser Home;         Access control? ?;         Identification system? ;         Data collection;?         IT household appliance? ;         Intelligence household appliance;         Baby monitoring system;         PLC Industrial control;         LED Lighting control.         ?         \u003cstrong\u003ePackage Incldued:\u003c\/strong\u003e         ?         1 x DC 12V RS232 Serial Port Delay Relay Switch Module     \u003cbr\u003e     \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/ser1\/banggood\/images\/84\/29\/9a69140b-cf5a-4cd8-9beb-109480dd8f40.jpg\"\u003e   \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/ser1\/banggood\/images\/80\/13\/b20cbc95-8a4a-40e1-a87c-b1273f99b1de.jpg\"\u003e   \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/ser1\/banggood\/images\/56\/46\/134ee47e-e23f-4d57-b7c3-e50bff20a685.jpg\"\u003e   \u003cbr\u003e    \u003cimg src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/ser1\/banggood\/images\/A5\/88\/0d06ec95-1dfc-4ce7-877e-a5792ace05b5.jpg\"\u003e   \u003cbr\u003e","brand":"ZHIQIAN","offers":[{"title":"Default Title","offer_id":43932193980611,"sku":"ZHIQIAN-023908","price":418.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/4355\/1683\/files\/fd73c5d3-149b-483e-8d33-6cbaad3c1a78.jpg?v=1725838969","url":"https:\/\/wrsss.com\/products\/dc-12v-rs232-serial-port-delay-relay-switch-module-pc-com-db9-arm-mcu-uart-remote-control-board","provider":"Wrsss","version":"1.0","type":"link"}