Rane HAL1x Design Guide - Page 107

CHAPTER 3: Key Audio Design Features Paging State Busy Caution Ready Definition Result At least one of the paging zones in the selected Scenario is currently being paged into through a Scenario of equal or higher priority. The user cannot page into the Scenario until the status indicator changes to Ready (or Caution). At least one of the paging zones in the selected Scenario is currently being paged into through a Scenario with a lower priority. The user can page into the Scenario because of its higher priority. However, the page will override another page that is currently occurring. If the user proceeds with the page, the other page will stop and its paging station will display a status of Busy Wait .... All the zones in the selected Scenario are available for receiving a page. The user can page into the Scenario. For more details on how the Pager1 works, see "PAGER1 RAD" on page 26. How do I configure emergency paging within the HAL paging system? The HAL System includes a special Emergency Paging Zone block that includes features specific to emergency paging. Its Ducker Depth, Hold Time, and Ramp Back parameter values (which are not configurable) are set specifically for emergency paging situations. Ducker Depth is set at its maximum depth, meaning an emergency page essentially mutes all other audio in the zone. Hold Time, which designates the time to wait after the page ends before beginning the ramp back process, is also set at its maximum. Ramp Back, the time period in which the original zone audio fades back in, is set at its maximum. Another important feature is the block's ducking of all other incoming audio, including other pages that may be occurring. Emergency paging always has the highest priority and overrides all other pages. Although most of this block's key parameters are not configurable (to ensure that the Emergency Paging Zone block performs correctly in an emergency situation), you can configure and link to the block's Gain parameter. You may, for example, want to set the emergency page level relatively high to improve intelligibility (to be heard over other alarms that may be sounding, and so on). And, if you want end users to have control over the emergency page volume, you would create a control link between a DR or other remote hardware and the block's Gain parameter. If you want an emergency page to be heard in a specific zone, you must include an Emergency Paging Zone block and it should be placed downstream from the relevant Zone Processor, Paging Zone, or Room Processor, preferably directly before the zone's output block, as illustrated here: By placing it in this position, you do not have to worry about muting the zone's audio as the Emergency Paging Zone block handles this automatically. This position also ensures that other blocks will not interfere with 103