Features :

1. Optical coupling isolation, driving ability is strong, stable performance; Trigger current is 5mA
2. The module can be set high level or low-level trigger by the jumper
3. Rated current of the interface is 16A
4. DC+ and JD+ shorted by jumper cap, DC- and JD- shorted with jumper cap, it is the same voltage between trigger terminal and relay control terminal.
5. High and low-level trigger mode selection. Jumper and L pin connection, IN pin, is low-level triggerJumper and H pin connection, IN pin, is the high-level trigger.