Qwikbus Intelligent Controller. 1 Required For 40 Audio Units. Requires Snt333s Power Supply For 2-Wire Qwikbus Systems
Spec Sheet Preview: The Alpha Communications® / S.T.R.™ SP333 intelligent controller is used only with the QwikBUS™ series intercom and/or video-intercom systems. The SP333 provides the intelligent 'BUS' c ircuitry needed to control the QwikBUS™ system functions. Each SP333 gets its power from the SNT333S power supply. All SP333 field connections are positive screw terminal type, or plug-in type. Each QwikBUS™ system requires a minimum of one SP333 intelligent controller. …