4 relay module with opto isolation, high...

4 relay module with opto isolation, high and low trigger  5V/9V/12V24V

Module Description :
1, the module uses genuine quality relay , normally open interfaces Maximum load : AC 250V/10A, DC 30V/10A;
2 , using SMD optocoupler isolation , driving ability , stable performance ; trigger current 5mA;
3 , the module Operating voltage 5V, 9,12 V, 24V are available ;
4 , each channel module jumper settings are available through the high or low trigger ;
5 , fault-tolerant design , even if the control line is broken , the relay will not operate ;
6 , the power indicator ( green ) , 4 relay status indicator ( red )
7 , the interface design of human nature , all interfaces are available through a direct connection terminal leads , very convenient
8 , module size : 73mm * 50mm * 18.5mm ( L * W * H )
9 , with 4 fixing bolt holes , hole 3.1mm, pitch 67mm * 44.5mm

 Module interface :
1, DC: positive power supply ( voltage at relay requirements, 5V.9V.12V and 24V options )
2, DC-: negative one
3, IN1-IN4: according to the settings for each channel , can control the corresponding high or low relay
Relay outputs : There are 12 line interface, all interfaces can be connected directly leads, user-friendly
1, NO1 - NO4: normally open relay interface, the relay becomes vacant before , pull short after the COM
2, COM1 - COM4 Common Interface Relays
3, NC1 - NC4: normally closed relay interface relay shorted to COM before , pull vacant post

High and low end of the trigger options :

1.S1-S4 relay an order of the High Road, Low Road -4 trigger selection ;

2.com with low short-circuited , the corresponding relay is low trigger , com and high -side short-circuited when the trigger is high