Product Details

1. Input part:

1. DC+: Connect to the positive pole of the power supply (voltage connection relay requirements, 5V, 12V, 24V) 2. DC-: Connect to the negative pole of the power supply

3. IN1-IN4: According to the settings of each channel, you can set high or low level control

The corresponding relay is attracted

2. Relay output terminal:

There are 12-wire interfaces, all interfaces can be directly connected and led out, convenient for users to use

1. NO1-NO4: Relay normally open interface, suspended before the relay is attracted, and short-circuited with COM after attraction

2. COM1-COM4: Relay common interface

3. NC1-CN4: Relay normally closed interface, short-circuited with COM before the relay is attracted, and suspended after attraction

3. High and low level trigger selection terminal:

1. S1-S4 are high and low level trigger selections for 1-4 relays 2. When COM is short-circuited with LOW, the corresponding relay is low level triggered 3. When COM is short-circuited with HIGH, it is high level triggered