The Idea stepper motor drive platform from Haydon Kerk Motion Solutions Inc. now communicates using an RS-485 data protocol that overcomes the limitations of other methods, rendering the drive module suitable for industrial applications. The advantages of RS-485, especially for industrial equipment such as stepper drives, motor drives and servo systems, are its long data transmissions and immunity to electrical noise. It uses "differential" signal lines for limiting common mode noise coupling and twisted pair cabling for cancelling out induced noise current, enabling the stepper motor drive to communicate over a network of 1000 ft without termination resistors. The system architecture allows up to 256 addressable device nodes. The platform is small and RoHS-compliant.