Improvements include: * Onboard diagnostics and troubleshooting for reduced downtime based on CANbus technology, as well as simplified user interface with an interactive display. * Wiring harness connectors that provide increased reliability and ease of service. * Common electric and hydraulic systems throughout the series for compatibility and ease of maintenance. * Improved cooling: higher ambient temperature capabilities equal longer component life. Key benefits of the Underground Design module include: integration with the Surpac user interface, which provides powerful, flexible geology and planning features developed for ease of use; integration with Gemcom MineSched production scheduling; logical, visual design process using a flowchart-based approach; user-defined parameters are stored in a secure database, ensuring designs are both auditable and repeatable; and wide applicability to the diverse needs of different types of underground mines.