Module interface:
1. DC+: Connect the power positive pole
2. DC-: Connect the power negative pole.
3. IN1-IN8: According to the setting of each way, the corresponding relay-operating can be controlled by high or low level.
Relay output: there is a 24 wire interface, all interfaces can be directly connected to lead to facilitate user use.
1. NO1--NO8: Relay normal open, the relay suspends before pulling in, and then short-connect with the COM.
2. COM1--COM8: Relay common interface
3. NC1--NC8: Relay normal close, short connected with COM before pulling inand suspended after pulling in.
High and low level trigger option:
1. S1-S8 is the high level trigger selection of relay 1 Channel - 8 Channel.
2. When COM is short connected with LOW, the corresponding relay is LOW level trigger, while when COM is short connected with high end is high level trigger.
