Audio interface (PZA)
WTSD Audio/Power and Control Interface
The WTSD-PWHUB is designed to be used in conjunction with AtlasIED WTSD wallplate mixers at the headend (amplifier rack) in place of the WTSD-PWBOB when additional headroom control and external device integration are required. The WTSD-PWHUB provides an emergency audio mute for fire systems and two NO/NC relays, one automatically activated by the Auto-Suspend feature and one that can be manually activated by a local "System Priority" button on the WTSD-MIX31K or WTSD-MIX41K.
These relays can be configured to power the headend amplifier rack on or off with the auto-suspend feature. The system priority button can be used to prioritize the room by muting background music and calling the entire building system when the room is in use. The gain-head limiter settings and indicators help control the balanced audio feed before the headend amplifier when multiple WTSDs are on a single bus. The limiter can be configured to protect a high-power system from amplifier overload and possible speaker damage.
24 VDC power supply is required and is not included.
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Gain adjustmentActs as a Master Mix bus level at the head - end
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Peak limiterPrevents overloading of amplifiers and speakers
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Balanced audio output with Ground LiftReduces hum and ground point reference.
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TSD power supply inputAllows higher current for larger systems
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Emergency CC SilenceMute the balanced audio input
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System priority relayActivated by the WTSD priority button
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Automatic suspension relayToggled by the sleep mode function
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WTSD RJ45 bus inputAllows for easy termination and wiring