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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

  • Save R 667.38
Tax included.
SKU:
   
- 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