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Transcript
Speaker Tone Sense Module for CK series Power Processing Amplifiers CC-STS Product Information The CC-STS module is the answer to system designers needs to satisfy local building codes for emergency voice announcement systems. These systems are typically referred to as “supervised” installations where each amplifier senses a tone that is looped back to the STS module. As a CC style module it is intended to operate in a stand alone amplifier or can be used with NexSys local controllers (LCP-AC8). unit sets a contact closure open or closed depending on your application. The module provides 2 inputs for speaker returns and two alarm outputs (contact closures). The alarm outputs can be set to “Parallel” or “Stereo” via the “Parallel Mode” jumper. In “Parallel” mode, both alarm outputs trip when the pilot tone is absent on either (or both) channel. In “Stereo” mode, each alarm operates independently. Protect and Tone LED’s are also provided on the panel to indicate which type of failure has occurred. The CC-STS Module fits in the network bay located on the rear panel of Crest Audio CK series of power processing amplifiers. The module individually monitors each amplifiers output and the complete speaker run for a pilot tone to ensure total system operation. When the pilot tone is absent from the end of the speaker chain, the The CC-STS Modules are designed and manufactured in the United States. Features · Two independant speaker return inputs and two Alarm outputs A & B (contact closures) · Works with any CC or NC type input module and CC type output module · STS module resides in middle bay of the CK series amplifier · Contact closures indicate loss of pilot tone or amplifier protect (amplifier output relays open) on either channel · User selectable jumpers to enable normally open or normally closed contact closures · Contact closures may be paralleled for a single return · LED’s on the module indicate the type of fault · Selectable tone sense range 13 to 30kHz. (Typical use is 20kHz.) · User adjustable controls (recessed) for detector frequency and threshold level · Provides continuous integrity monitoring (tone sense) required for many fire safety codes · User selectable “Tone” fault enable / disable · For use as a stand alone product (no network required) or with a local controller CC-STS connections Speaker Wire To Contact Closure Input Speaker Return Wire Designed & manufactured in the USA by: Crest Audio Inc. 100 Eisenhower Dr. Paramus, New Jersey 07652 USA www.crestaudio.com Speaker Return Input Alarm Output Settings LISTED 8B42 COMMERCIAL POWER AMPLIFIER Faults Ch A Ch A + – 120V~60 Hz 15A Thresh. Freq. Protect Contact Closures Tone Ch B Ch B + – Speaker Tone Sense Module Speaker Wire Speaker Return Wire Model CC-STS To Contact Closure Input USA - Specificarion amplifier shown Architects and Engineers Specifications - CC-STS The module shall plug into the the middle bay of the CK Power Processing Series Amplifier. It will detect a pilot tone at the speaker return input. The detectable frequency range of a the pilot tone will be between 13K to 30KHz. The pilot tone frequency and threshold will be seletable by a recessed rear Input Signal A Input With Signal B Pilot Tone With Pilot Tone panel potentiometer. The rear panel will have LED’s indicating a loss of “Tone” or “Protect” fault for each channel. Two contact closures for“Alarm” outputs are provided. There will be a user selectable jumper for independent or paralled output operation. There will be a user selectable jumper for “Tone” fault enable/disable. CC-STS Middle Bay Module Speaker Tone Sense Module Block Diagram fault status LED’s tone protect A B A B B speaker return NDP-ENG + hi pass filter - threshold tone decoder tone (center frequency) ETHERNET NEXSY S GA TEW A NEXSYS GATEW TEWA relay alarm output A relay alarm output B microcontroller B speaker return + - hi pass filter tone decoder threshold tone (center frequency) on on off off paralled mode A B sense enable user selectable jumpers Electrical Specifications Sense input voltage range: Sense threshold: Sense tone: Fault Alarm output: Connectors: 100V rms 5Vrms – 50mVrms 13k-30kHz two 100mA relay contacts Speaker Returns: Alarm Outputs: 2 position Pheonix Combicon connecters 2 position Pheonix Combicon connecters Controls: Tone (center frequency): Recessed trim potentiometer Threshold: Recessed trim potentiometer Indicators: Tone Fault LED Protect Fault LED NexSys is a registered trademark of Crest Audio Inc. Crest Audio reserves the right to make improvements in manufacturing or design which may affect specification (so there). Crest Audio specification literature is available in downloadable PDF format; visit our web site at http:// www.crestaudio.com. v. 1.4 3/22/2001 A44000082 2000 Crest Audio Inc. Crest Audio Inc. 100 Eisenhower Drive Paramus, NJ 07652 USA TEL:(201)909-8700 FAX:(201)909-8744 http://www.crestaudio.com