A V-Series 1RU 12-key Rotary Expansion Panel is used to increase the number of Talk/Listen paths for a user. It has 12 talk pushbuttons and 12 rotary listen switches. Each talk pushbutton has an associated audio level rotary switch control and a 10-character alphanumeric display. It connects to the host panel over CAT5 up to 7m (25'). Up to 8 Expansion panels can be connected to the host panel. Expansion panel keys should match the host panel (rotary with rotary).
This product is also available as a 12-key Pushbutton and a 16-key Lever expansion panel options.