Features 1.6mm thick double sided board:1.6mm thick double sided board, sturdy and durable, long service life Good Performance The RS485 input controller is easy to use and provides good performance. The small size is convenient to carry and store 6.5-24V Working voltage: working voltage from DC 6.5-24V, working current for 8-20mA, input voltage range is 5-30V Large heat dissipation area: come with a large heat dissipation area, support stable operation and long running time DIN rail installation: the digital insulation input controller adopts the DIN rail installation, the number of channels is 32 Specification: Element Type: RS485 Input Controller Product material: PCB Operating voltage: DC 6.5-24V Working current: 8-20mA Input voltage range: 5-30V Number of channels: 32 channels Package list: 1 x RS485 input controller. Small note: Do not exceed the operating voltage range, overvoltage may damage the board. Package List 1 x RS485 Input Controller