Input module CTSL-D-16E-M8-3 Dimensions W x L x H=143 mm x 103 mm x 32 mm, Polarity protected=for operating voltage, Protection (short circuit)=Internal electronic fuse protection for each group, Baud rate=38,4 kBit/s, 230,4 kBit/s, Operating voltage range DC=18 - 30 V