Product Name: New 8CH DC 12V RS232 Relay Module Serial Pport Remote Control Swtich

Package inlcuded:
  1 PCS New Version DC 12V 8Ch RS232/TTL232 Relay Module

 

Description:

8 Channel Relay Module;

Working voltage : DC 12V.
 
Standby current (all relays closed) 17MA, 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/TTL232 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 : 145*90*40mm
 
Weight : With shell 215g; without shell 135g

This is a new version, adding a single command to control multiple channels
 
For more information, please contact me

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;

Once issue a command,will have a return fame,7th byte of return fame mean the satus of realy.

 

2.Return relay close(return this command,mean COM disconnect NO , and COM connect to NC)