Party line Communications and Paging Systems PSC VODEC P3-VXS Party line communications and paging systems PSC VODEC design, manufactures, supplies and commissions Party line communications and paging systems specifically for aggressive industrial situations where reliable operation is required in climatic extremes and/or potentially explosive atmospheres. Single Button Paging, no dial up codes to address public address loudspeakers Integrated Party/PABX multi channel selective point to point and open party line communications Modern design eliminates rotary switches No multi core or special cable required, uses standard instrumentation/telecom cable PSC P3-VXS Party Line Communications and Paging System can be easily extended to incorporate full system diagnostics and alarm tone distribution by integrating PSC P3-VX/AT PAGA Public address and alarm broadcast package.