©2019 Atlas Sound LP. The Atlas "Circle A", Soundolier, and Atlas Sound are trademarks of Atlas Sound L.P. IED is a Registered Trademark of Innovative Electronic Designs LLC. All rights reserved. All other Trademarks are property of their respective owners. No endorsement is implied. Due to continual product development, specifications are subject to change without notice. ATS006019 RevA 8/19 AtlasIED.com TELEPHONE: (800) 876-3333 SUPPORT@ATLASIED.COM 1601 JACK MCKAY BLVD. ENNIS, TEXAS 75119 U.S.A.Audio / Power Interface WTSD-PWHUB General Description The WTSD-PWHUB is designed to replace the WTSD-PWBOB at the head-end (amp rack) in a WTSD-MIX31K or WTSD-MIX41K system when additional headroom control and external device integration is needed. The WTSD-PWHUB provides an emergency audio mute for fire systems and two NO / NC relays, one that is activated automatically by the auto sleep function and one that can be manually activated by a local latching "System Priority" button on the WTSD-MIX31K or WTSD-MIX41K. These relays can be configured to turn the head-end amp rack On or Off with the auto sleep function. The system priority button can be used to take over priority of the room by muting a background music and paging building wide system when the room is in use. The gain-headroom- limiter settings and indicators help control the balanced audio feed prior to the head-end amp when multiple WTSDs are on a single bus. The limiter can be set to protect a high-power system from over loading the amp and possibly speaker damage.