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N221B02 DC 5V 7.5V 9V 2Ch RS232 Relay Board Remote Control USB PC UART COM Serial Ports

N221B02 DC 5V 7.5V 9V 2Ch RS232 Relay Board Remote Control USB PC UART COM Serial Ports

N221B02

1000 in stock

$8.99
$8.99 $8.99
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Typial application :

1 DC 5V control circuit,Wiring diagram below. ''LOAD'' may be LED lights, fans, motors and other AC DC equipment
 
 
 
2 DC 7-12V(7.5V 9V) control circuit,Wiring diagram below ''LOAD'' may be LED lights, fans, motors and other DC AC equipment
 
 
 
 
 
 
 
 

 

 
Package inlcuded:1 xDC 5V-12V 2Ch RS232 Relay Board:
 
 
Description:
2 Channel Relay Module;
 
Power input: DC 5V/ 7-12V(Recommed 7.5V 9V)
 
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, 8data bits,one stop bit, no parity.Eachdata frame containseight bytes..
Size : 71x47mm x 19
Weight : 45g
 
1Controlcommands:

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

 

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


 

3.Relayclose (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

4.Relay toggle（Relay statusreversal,if COM connect to NO,this commands willDisconnectCOM 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

 

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

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

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

2return command
 

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

 

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

 
Instruction manual Please ask us after the purchase
 
 
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;
 
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