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• Product Name: DC 12V 8 CH RS232 Relay Board PC USB UART DB9 Remote Control Switch For PLC Smart Home Garage door Car alarm Farm Motor Package inlcuded: 1 x DC 12V 8Ch RS232 Relay Board Description: 8 Channel Relay Module; Power input: DC 12V(8) Standby current (all relays closed) 18MA, 1 relay open 51MA, 2 relays open 82MA, three relays open 112MA, 4 relays open 142MA, 5 relays open 170MA , 6 relays open 198MA , 7 relays open 227MA , eight 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 quit bit, no parity Each records frame consists of eight bytes Two-way data transmission Baud rate 9600kbps, 8 records bits, one stop bit, no parity Each records body consists of eight bytes Size : 94mm*62mm*19mm Weight : 120g For more information, please contact me 1 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 fifty six 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 fifty six 00 00 00 07 00 B2 Channel 8 :55 56 00 00 00 08 00 B3 2 open (issue this command,Relay open,COM connect with NO) Channel 1 :55 fifty six 00 00 00 01 01 AD Channel 2 :55 fifty six 00 00 00 02 01 AE Channel 3 :55 fifty six 00 00 00 03 01 AF Channel 4 :55 56 00 00 00 04 01 B0 Channel five :55 56 00 00 00 05 01 B1 Channel 6 :55 56 00 00 00 06 01 B2 Channel 7 :55 fifty six 00 00 00 07 01 B3 Channel 8 :55 56 00 00 00 08 01 B4 three Relay close (issue this command,Relay close,COM disconnect NO,and COM hook up with NC) Channel 1 :55 fifty six 00 00 00 01 02 AE Channel 2 :55 56 00 00 00 02 02 AF Channel three :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 fifty six 00 00 00 06 02 B3 Channel 7 :55 fifty six 00 00 00 07 02 B4 Channel 8 :55 fifty six 00 00 00 08 02 B5 four Relay toggle(Relay status reversal,if COM connect with NO,this instructions 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 three :55 fifty six 00 00 00 03 03 B1 Channel four :55 fifty six 00 00 00 04 03 B2 Channel five :55 fifty six 00 00 00 05 03 B3 Channel 6 :55 56 00 00 00 06 03 B4 Channel 7 :55 fifty six 00 00 00 07 03 B5 Channel 8 :55 fifty six 00 00 00 08 03 B6 5 Relay momentary(Relay COM hook up with NO,disconnect after 200MS) Channel 1 :55 fifty six 00 00 00 01 04 B0 Channel 2 :55 fifty six 00 00 00 02 04 B1 Channel 3 :55 56 00 00 00 03 04 B2 Channel four :55 56 00 00 00 04 04 B3 Channel 5 :55 fifty six 00 00 00 05 04 B4 Channel 6 :55 56 00 00 00 06 04 B5 Channel 7 :55 fifty six 00 00 00 07 04 B6 Channel eight :55 fifty six 00 00 00 08 04 B7 6 Relay Interlock Channel 1 :55 56 00 00 00 01 05 B1 Channel 2 :55 fifty six 00 00 00 02 05 B2 Channel 3 :55 fifty six 00 00 00 03 05 B3 Channel 4 :55 56 00 00 00 04 05 B4 Channel five :55 fifty six 00 00 00 05 05 B5 Channel 6 :55 56 00 00 00 06 05 B6 Channel 7 :55 fifty six 00 00 00 07 05 B7 Channel 8 :55 fifty six 00 00 00 08 05 B8 Once difficulty a command,will have a return fame,7th byte of go back reputation imply the satus of realy 2 return command 1 relay open(return this command,mean COM hook up with NO) Channel 1 :33 3C 00 00 00 01 01 71 Channel 2 :33 3C 00 00 00 02 01 seventy two Channel 3 :33 3C 00 00 00 03 01 73 Channel 4 :33 3C 00 00 00 04 01 74 Channel five :33 3C 00 00 00 05 01 seventy five Channel 6 :33 3C 00 00 00 06 01 seventy six Channel 7 :33 3C 00 00 00 07 01 77 Channel eight :33 3C 00 00 00 08 01 seventy eight 2 relay close(return this command,mean COM disconnect NO , and COM connect with NC) Channel 1 :33 3C 00 00 00 01 02 seventy two Channel 2 :33 3C 00 00 00 02 02 73 Channel 3 :33 3C 00 00 00 03 02 74 Channel four :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 eight :33 3C 00 00 00 08 02 79 Instruction handbook Please ask us after the purchase Application Remote control, remote dimension system; Wireless meter ; Smart Home,Home Automation ,Wiser Home; Access control ; Identification components ; Data collection; IT family equipment ; Intelligence household appliance; Baby tracking system; Typial application : 1 DC 12V management circuit,Wiring diagram below ''LOAD'' may be LED lights, fans, motors and different DC 12V kit 2 DC 1-48V OR AC 85-265V control circuit,Wiring diagram below(Note:If not DC 12V load, desire another DC 12V power supply) ''LOAD'' could also be LED lights, fans, motors and different DC AC equipment Test Software:(Only support win xp (32/62) win 7 (32/62) Operating System)

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