
The type of system configuration chosen for a particular project is dependent on the complexity of the designed tunnel alignment, the DTA, and on any costing restrictions associated with that project. However, since the equipment is modular all systems may be upgraded to more complex configurations, with additional features i.e. an electronic link to a Leica theodolite or total station, Correction Curve calculation, Predictive Ring Sequencing, Articulation Interface, underground Radio Modem link, to meet the changing demands of a project.
