Spec Sheet Preview: The Alpha Communications® / S.T.R.™ VBV-4 video distributor unit is used only with the VH30ANC and VH30CNC series 'NoCoax' video-intercom systems. The VBV-4 is used when the video data signal from the lobby entry camera(s) must be split (distributed) to several cables. The VBV-4 gets its power from the NG20 DC power supply. All VBV-4 connections are positive screw terminal type. Each VBV-4 has four (4) video data outputs. When multiple VBV-4's are used, for systems requiring more …