Feature:1. 1,6mm thickness double-sided PCB board: adopt 1,6mm thickness double-sided PCB board, sturdy and durable, characterized by long service life 2. Large heat dissipation area: equipped with a large heat dissipation area, ensuring stable operation and long working time 3. Good performance: RS485 input controller is easy to operate and ma good performance, and small size is convenient to carry and store 4. Operating voltage 6,5 to 24 V: operating voltage from 6,5 to 24 V DC, operating current for 8 to 20 mA, input port voltage range is 5 to 30 V 5. DIN rail installation: Digital input controller with insulation is adapted for DIN rail mounting, the number of channels is 32 . RS485 32 Channel Isolated Input Controller Specification:Article type: RS485 input controller Product Material: PCB Operating voltage: DC 6,5-24 V Operating Current: 8-20mA Input port voltage range: 5-30 V Number of Channels: 32 Channels . RS485 32 Channel Isolated Input Controller Package List:1 x RS485 Input Controller . RS485 32 Channel Isolated Input Controller