snippet: Power Supply for Video Systems Puts Out 18VDC At 1.5A. The Alpha Communications® / Golmar FA-PLUS/C power supply unit is used only with the PLATEA and/or SZENA series intercom and/or video-intercom systems. The FA-PLUS/C provides the intelligent circuitry needed to control the video-intercom system functions. Each FA-PLUS/C gets its power from a standard 110VAC plug-in electrical connection. All FA-PLUS/C field connections are positive screw terminal type, or plug-in type. Each PLATEA and/or SZENA series system requires a minimum of one FA-PLUS/C power supply unit. (Page 1)