Paging Controlled Relay• Switching Functions Controlled by Speaker-Level Source• Input Accepts Amplified Constant Voltage Signals• Switch-Selectable Input: 25 V 70 V 100 V• 25 Volt Input Also Accepts 8 Ω Inputs up to 75 Watts• Transformer-Isolated Input• Front-Panel Trimmer Provides Sensitivity Adjustment• Signal Threshold LED Facilitates Sensitivity Adjustment• Front-Panel Trimmer Provides Release Delay Adjustment• LED Indicates when Module is Triggered• Release Delay Adjustable from 3 to 25 Seconds• Open-Collector Output Active when Module is Triggered• Switches on Paging or Any Other Amplified Audio Signal• 8 Amp Dpdt Relay Contacts for Switching Speaker Loads• Ideal for Muting or Switching Primary Speakers During PagingThe TX-PCR1 is the ideal choice in many applications where switching needs to be controlled from a constant-voltage amplified audio source. The module will trigger on any program material with paging sources being the most common.