The BECKHOFF BK3150 is a PROFIBUS coupler designed as a compact bus coupler with 128 bytes of input and output capacity. It supports 64 bus terminals and K-Bus extension, operating at 12 MBaud. The module requires 24 VDC power supply with a current consumption of 70 mA, and operates within a temperature range of -25 to +60 degrees Celsius. It features an IP20 protection rating.