®The Router module is the heart of the ZonePro device and allows for a primary source, a pri-ority override sources and a paging source, where the paging source has the highest priority.Both priority override and page have duckers that allow them to duck the previous sources.Source SelectThis parameter allows the user to select the input source for the zone.Priority SelectThis parameter allows the user to select which input will override the primary source signal..Priority Level -Inf to 20dBAdjusts the output level of the selected Priority input signal.Page SelectThis parameter allows the user to select which Paging input will override the source signal.Page Level -Inf to 20dBAdjusts the output level of the selected Paging input signal.Master Level -Inf to 20dBThis parameter adjusts the output level of of the Zone.Master muteWhen selected, the the signal will be muted for the Zone.The Router contains two Ducker modules for Priority and Page sources. The Priority Duckerattenuates the primary source and adds the Priority source. The Priority source is also gatedusing the same timing as the Priority Ducker. When the Priority source crosses the PriorityDucker Threshold the Ducker attenuates the Primary source by the Depth amount. At the sametime the Priority Gate opens to allow the Priority source to be summed over the primary source.The Gate depth is –INF when closed to prevent adding noise to the primary source.4.9 - RouterDetailed Parameters Section 4ZonePro ™ZonePro™ User Manual 27