700-47-03 (20-Button) 11/7/2017 Category: Products, Trilogy Gemini System, Touchscreen Panels, Trilogy Mercury System, Touchscreen Panels Shift key and Assign key function Assignable level control Loudspeaker/Mic CUT button 8-character alpha-numeric displays Independent gain control per channel 2 In/2 Out GPI plus foot switch Can be supplemented with Trilogy expansion panels up to 64 keys Compatible with Gemini, Mercury and other Trilogy intercom systems