Available in seven basic configurations, they allow the user to select the best choice for current needs, plus allows for future expansion. The number of slots in the mainframe determines how many USmod switching modules the mainframe will contain. The table below indicates the number of module slots for each type.
Manual controls are standard on most models.
This means that only the active keys are illuminated during the various operations and menu selections. Command protocols for some other system manufacturers are available upon request. Consult the factory. The above model number specifies a six slot mainframe that is 3RU high. The suffix determines the power supply configuration.