The PVA-15CST is a call station for the PAVIRO system. As standard, the call station has a gooseneck microphone with pop shield and permanent monitoring, a total of 20 buttons, an illuminated LC display, and an integrated loudspeaker. The call station can be modified to suit the user''s requirements by connecting up to five PVA-20CSE call station extensions, each with 20 customizable selection buttons. Other properties: Five menu/function keys (pre-programmed) - one green or one yellow indicator light per button 15 selection buttons (customizable) - two indicator lights (green/red) per button Numeric zone selection (can be activated during IRISNet configuration) Label with transparent covering - the label can be changed at any time Can be used as a standing or desk/rack flushmounted device Internal monitoring with error logging - complies with all relevant national and international standards Easy configuration - use of the Configuration Wizard or IRIS-Net software