Each one needs 15-20mA Driver Current.; Equipped with high-current relay : DC30V 10A AC250V 10A.
Each relay has normally open and normally closed contact.
The 8 channels are optically isolated, safe, reliable, anti-interference.; Can be selected by jumper relay and TTL or ground.
With power indicator,8-way road has a status indicator.; With a relay coil to absorb the diode protection.
The circuit board size 140mm X 55mm; Mounting hole size 133mm X 40mm (Size is approximate)