Plena System Pre-Amplifier
??? Six-zone system pre-amplifier, with single or dual
channel operation
??? Two input channels for call stations
??? Universal input for microphone/line, with speech
optimized tone control
??? Three inputs for BGM selection and music optimized
tone control
??? Front panel zone selection for BGM and call station
zone selection for calls
??? PC and trigger inputs for automated calls, alarm tones
and chimes to selected zones
