12V 4 Channel RS232 Relay Board PC USB UART DB9 Interface Relay Module Serial Port Remote Control Switch for Motor Garage

Motors12V 4 Channel RS232 Relay Board PC USB UART DB9 Interface Relay Module Serial Port Remote Control Switch for Motor GarageSpecification:Power input: 12V(8.5-13.5V)Standby current (all relays closed) 18MA, 1 relay open 50MA, 2 relays open 81MA, 3 relays open 110MA, 4 relays open 140MAPC Serial ports RS232 Control RelayPower indicator: LED lightsOutput indication: relay output with LED indicators,easy to see working status of the relayCommunication 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.Baud rate 9600kbps, 8 data bits, one stop bit, no parity. Each data frame contains eight bytesSize: 90mm*47mm*19mmWeight: 62g1 Control commands:1. Reading status(reading the satus of the relay (on/off))55 56 00 00 00 00 00 AB2.Relay open (issue this command,Relay open,COM connect to NO)Channel 1 : 55 56 00 00 00 01 01 ADChannel 2 : 55 56 00 00 00 02 01 AEChannel 3 : 55 56 00 00 00 03 01 AFChannel 4 : 55 56 00 00 00 04 01 B03. Relay close (issue this command,Relay close,COM disconnect NO,and COM connect to NC)Channel 1 : 55 56 00 00 00 01 02 AEChannel 2 : 55 56 00 00 00 02 02 AFChannel 3 : 55 56 00 00 00 03 02 B0Channel 4 : 55 56 00 00 00 04 02 B14. Relay toggle(Relay status reversal,if COM connect to NO,this commands will Disconnect COM to NO and Reverse COM connect to NC,and vice versa)Channel 1 : 55 56 00 00 00 01 03 AFChannel 2 : 55 56 00 00 00 02 03 B0Channel 3 : 55 56 00 00 00 03 03 B1Channel 4 : 55 56 00 00 00 04 03 B25. Relay momentary(Relay COM connect to NO,disconnect after 200MS)Channel 1 : 55 56 00 00 00 01 04 B0Channel 2 : 55 56 00 00 00 02 04 B1Channel 3 : 55 56 00 00 00 03 04 B2Channel 4 : 55 56 00 00 00 04 04 B36. Relay InterlockChannel 1 : 55 56 00 00 00 01 05 B1Channel 2 : 55 56 00 00 00 02 05 B2Channel 3 : 55 56 00 00 00 03 05 B3Channel 4 : 55 56 00 00 00 04 05 B4Once issue a command,will have a fame,7th byte of fame mean the satus of realy.2 command 1. relay open( this command,mean COM connect to NO)Channel 1 : 33 3C 00 00 00 01 01 71Channel 2 : 33 3C 00 00 00 02 01 72Channel 3 : 33 3C 00 00 00 03 01 73Channel 4 : 33 3C 00 00 00 04 01 742. relay close( this command,mean COM disconnect NO , and COM connect to NC)Channel 1 : 33 3C 00 00 00 01 02 72Channel 2 : 33 3C 00 00 00 02 02 73Channel 3 : 33 3C 00 00 00 03 02 74Channel 4 : 33 3C 00 00 00 04 02 75Application: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.Note:1.Due to the light and screen difference, the item's color may be slightly different from the pictures.2.Please allow 1-3cm differences due to manual measurement.Package Includes:1x 4 Channel RS232 Relay Board==========Theory : Solid State Relay

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• 12V 4 Channel RS232 Relay Board PC USB UART DB9 Interface Relay Module Serial Port Remote Control Switch for Motor Garage