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  • R221A08 8CH Serial Port Relay Module DB9 UART RS232 Remote Control Switch 12V DC for Smart Home
  • R221A08 8CH Serial Port Relay Module DB9 UART RS232 Remote Control Switch 12V DC for Smart Home
  • R221A08 8CH Serial Port Relay Module DB9 UART RS232 Remote Control Switch 12V DC for Smart Home
  • R221A08 8CH Serial Port Relay Module DB9 UART RS232 Remote Control Switch 12V DC for Smart Home
  • R221A08 8CH Serial Port Relay Module DB9 UART RS232 Remote Control Switch 12V DC for Smart Home
  • R221A08 8CH Serial Port Relay Module DB9 UART RS232 Remote Control Switch 12V DC for Smart Home
  • R221A08 8CH Serial Port Relay Module DB9 UART RS232 Remote Control Switch 12V DC for Smart Home
  • R221A08 8CH Serial Port Relay Module DB9 UART RS232 Remote Control Switch 12V DC for Smart Home
R221A08 8CH Serial Port Relay Module DB9 UART RS232 Remote Control Switch 12V DC for Smart Home

R221A08 8CH Serial Port Relay Module DB9 UART RS232 Remote Control Switch 12V DC for Smart Home COD

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                        >>>Manual: Click here to open<<<

                        Description: 
                           
                        - Power Input: DC 12V(8.5-13.5V).
                        - Standby Current: (all relays closed) 18mA, 1 relay open 51mA, 2 relays open 82mA, 3 relays open 112mA, 4 relays open 142mA,  5 relays open 170mA , 6 relays open 198mA , 7 relays open 227mA , 8 relays open 251mA
                        - PC Serial ports RS232 Control Relay;
                        - Power indicator : LED lights; 
                        - Output indication : relay output with LED indicators,easy to see working status of the relay;
                        - Communication 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 bytes. 
                        - Size : 94 x 62 x 19 mm
                          
                        Control Commands:
                         
                        1. Reading status(reading the satus of the relay (on/off))
                         
                        Channel 1 :55 56 00 00 00 01 00 AC
                        Channel 2 :55 56 00 00 00 02 00 AD
                        Channel 3 :55 56 00 00 00 03 00 AE
                        Channel 4 :55 56 00 00 00 04 00 AF
                        Channel 5 :55 56 00 00 00 05 00 B0
                        Channel 6 :55 56 00 00 00 06 00 B1
                        Channel 7 :55 56 00 00 00 07 00 B2
                        Channel 8 :55 56 00 00 00 08 00 B3
                          
                        2.Relay open (issue this command,Relay open,COM connect to NO)
                         
                        Channel 1 :55 56 00 00 00 01 01 AD
                        Channel 2 :55 56 00 00 00 02 01 AE
                        Channel 3 :55 56 00 00 00 03 01 AF
                        Channel 4 :55 56 00 00 00 04 01 B0
                        Channel 5 :55 56 00 00 00 05 01 B1
                        Channel 6 :55 56 00 00 00 06 01 B2
                        Channel 7 :55 56 00 00 00 07 01 B3
                        Channel 8 :55 56 00 00 00 08 01 B4
                           
                        3. Relay close (issue this command,Relay close,COM disconnect NO,and COM connect to NC)
                          
                        Channel 1 :55 56 00 00 00 01 02 AE
                        Channel 2 :55 56 00 00 00 02 02 AF
                        Channel 3 :55 56 00 00 00 03 02 B0
                        Channel 4 :55 56 00 00 00 04 02 B1
                        Channel 5 :55 56 00 00 00 05 02 B2
                        Channel 6 :55 56 00 00 00 06 02 B3
                        Channel 7 :55 56 00 00 00 07 02 B4
                        Channel 8 :55 56 00 00 00 08 02 B5
                           
                        4. 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 AF
                        Channel 2 :55 56 00 00 00 02 03 B0
                        Channel 3 :55 56 00 00 00 03 03 B1
                        Channel 4 :55 56 00 00 00 04 03 B2
                        Channel 5 :55 56 00 00 00 05 03 B3
                        Channel 6 :55 56 00 00 00 06 03 B4
                        Channel 7 :55 56 00 00 00 07 03 B5
                        Channel 8 :55 56 00 00 00 08 03 B6
                          
                        5. Relay momentary(Relay COM connect to NO,disconnect after 200MS)
                         
                        Channel 1 :55 56 00 00 00 01 04 B0
                        Channel 2 :55 56 00 00 00 02 04 B1
                        Channel 3 :55 56 00 00 00 03 04 B2
                        Channel 4 :55 56 00 00 00 04 04 B3
                        Channel 5 :55 56 00 00 00 05 04 B4
                        Channel 6 :55 56 00 00 00 06 04 B5
                        Channel 7 :55 56 00 00 00 07 04 B6
                        Channel 8 :55 56 00 00 00 08 04 B7
                          
                        6. Relay Interlock
                         
                        Channel 1 :55 56 00 00 00 01 05 B1
                        Channel 2 :55 56 00 00 00 02 05 B2
                        Channel 3 :55 56 00 00 00 03 05 B3
                        Channel 4 :55 56 00 00 00 04 05 B4
                        Channel 5 :55 56 00 00 00 05 05 B5
                        Channel 6 :55 56 00 00 00 06 05 B6
                        Channel 7 :55 56 00 00 00 07 05 B7
                        Channel 8 :55 56 00 00 00 08 05 B8
                         
                        Once issue a command,will have a return fame,7th byte of return fame mean the satus of realy.
                         
                        Return Commands:
                           
                        1.Return relay open(return this command,mean COM connect to NO)
                         
                        Channel 1 :33 3C 00 00 00 01 01 71
                        Channel 2 :33 3C 00 00 00 02 01 72
                        Channel 3 :33 3C 00 00 00 03 01 73
                        Channel 4 :33 3C 00 00 00 04 01 74
                        Channel 5 :33 3C 00 00 00 05 01 75
                        Channel 6 :33 3C 00 00 00 06 01 76
                        Channel 7 :33 3C 00 00 00 07 01 77
                        Channel 8 :33 3C 00 00 00 08 01 78
                          
                        2.Return relay close(return this command,mean COM disconnect NO , and COM connect to NC)
                         
                        Channel 1 :33 3C 00 00 00 01 02 72
                        Channel 2 :33 3C 00 00 00 02 02 73
                        Channel 3 :33 3C 00 00 00 03 02 74
                        Channel 4 :33 3C 00 00 00 04 02 75
                        Channel 5 :33 3C 00 00 00 05 02 76
                        Channel 6 :33 3C 00 00 00 06 02 77
                        Channel 7 :33 3C 00 00 00 07 02 78
                        Channel 8 :33 3C 00 00 00 08 02 79
                         
                        Application:
                         
                        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;
                         
                        Typial Application :
                         
                        1. DC 12V control circuit,Wiring diagram below. "LOAD" may be LED lights, fans, motors and   other DC 12V equipment
                         
                        R221A08_8
                         
                         
                         
                        2. DC 1-48V 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
                         
                        R221A08_9
                         
                         
                         
                         
                         

                        Package Included:

                        1 x 
                        8CH Serial Port Relay Module






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