The SPS, Single Position Switch, series switch panels combine the popular look and feel of membrane switches with unique removable inserts and the option of removable cover bezels. Each insert is sealed against damage from liquid spills.  These modular switches are extremely versatile, both functionally and cosmetically.  SPS inserts provide building blocks to simplify any cabin switching requirements.  These inserts are available in toggle (alternate action), momentary, bar graph indicator, selection indicator, annunciator, rocker, headphone jack, and ringer/buzzer models.  Four and eight segment alphanumeric LED display modules are available to display switch settings or selection.  The toggle and momentary modules are available in either 2 or 5 amp relay models to provide integrated load management.  The inserts can function based upon discrete inputs/outputs or may be integrated with other modules to control functions over the RS-485 serial data bus.