SelecTone® Connector kits that allow SelecTone® speaker or amplifiers to be used with SelecTone® command units (models 300MB, 300MC, 300VSC-1, 300SCW-1 and 300SSC). When creating a SelecTone® system based around a command center, rather than individual tone modules, each SelecTone® speaker or amplifier will require a connector kit. Connector kit is a circuit board which is installed in the tone module receptacle of a SelecTone® speaker or amplifier making it possible to transfer audio signals from the command unit to the individual speaker or amplifier. The model 300CK is used in non-supervised SelecTone® systems (based around models 300MB, 300MC, 300VSC-1, 300VSC-1044SB and 300SCW-1). A two conductor 300CK must be used with every speaker or amplifier (models 50GC, 300GC, 302GC, etc.) when used with models 300MB, 300MC, 300VSC-1 or 300SCW-1 command units.
