Valcom V 2001A Wiring Diagram. Web bogen paging system wiring diagram. Web refer to figure 1 for a block diagram of a typical installation. paging horn wiring diagram from schematicfixevelina99.z13.web.core.windows.net Integrated six zone paging control unit, integrated six zone handsfree talkback. Features 600 ohms balanced and 50,000 ohms. Unfortunately, the overhead paging still isn't working.