EST 250100-2 R3 IRC3 NHTR Audio Manual

270218 14JUL97 Series Audio Amplifiers Manual BY NOTICE Systems Technology Parkland Drive FL 34243 739 4300 1997 Edwards Systems Technology Inc manual and the products it describes are copyrighted by Systems Technology Inc EST You may not reproduce transcribe or transmit any part of this manual without written permission from EST manual contains proprietary information intended for distribution authorized persons or companies for the sole purpose of business with Edwards Systems Technology Inc If you any information contained in this manual to unauthorized you have violated all distributor agreements and we may legal action manual was designed and written by the EST Technical Documentation Department Sarasota 3 Assembly 4 AA75 25 5 AA75P 25 AA75T 25 AA75 25 Amplifier AA75P 25 Amplifier AA75T 25 Amplifier Methods Signal Flow Diagrams Drawings 18 Audio System Configuration Audio System Configuration Audio System Configuration With SIGA CC1 20 Amplifier Backup Using Riser 21 Amplifier Backup Using ARA 1 Relay Amplifier Backup Per IRC 3 Enclosure Paging 24 and Troubleshooting Series Audio Amplifiers Manual information of liability content of this manual is proprietary in nature and is intended for distribution to authorized persons companies distributors others for the sole purpose of conducting business associated Edwards Systems Technology Inc The distribution of contained within this manual to unauthorized persons shall a violation of any distributor agreements and may result in of legal proceedings product has been designed to meet the requirements of NFPA 72 1996 Edition Underwriters Laboratories Inc Standard 7th Edition and Underwriters Laboratories of Canada Inc ULC S527 Installation in accordance with this manual codes and the instructions of the Authority Having is mandatory EST Inc shall not under any circumstances liable for any incidental or consequential damages arising from loss property or other damages or losses owing to the failure of EST Inc beyond the cost of repair or replacement of any defective EST Inc reserves the right to make product improvements change product specifications at any time every precaution has been taken during the preparation of this to ensure the accuracy of its contents EST assumes no for errors or omissions warning equipment can generate and radiate radio frequency energy If this is not installed in accordance with this manual it may cause to radio communications This equipment has been tested found to comply within the limits for Class A computing devices to Subpart B of Part 15 of the FCC Rules These rules are to provide reasonable protection against such interference this equipment is operated in a commercial environment of this equipment is likely to cause interference in which the user at his own expense is required to take whatever measures be required to correct the interference Series Audio Amplifiers Manual history Series Auido Amplifiers Installation Manual P N 270218 Status 1995 1997 For Change Release and content revisions Series Audio Amplifiers Manual Series Audio Amplifiers Manual AA75 series of audio amplifiers are solid state magnetic coupled designed for use in the life safety industry Three models are to meet various applications The AA75 is a 50 watt amplifier used for distributive amplifier The AA75P contains a paging microphone and tone generator and be used in conjunction with the above amplifiers for paging The AA75T contains a tone generator May be used as a back up in the event primary tone generation is lost amplifiers provide 50 Watts output and obtain their DC power the 24 VDC power supply source within the Fire alarm control AA75 series amplifiers are inherently power limited If a short or overload is sensed the output will be shut down and an trouble relay is activated The amplifiers contain three LED indicators Two LED green red are used to indicate the gain setting normal too high low and the third LED yellow used to indicate an amplifier trouble amplifiers may be used in conjunction with an existing paging containing a preamplifier and tone generators or may be used in with EST Audio Control Panel model ACP ACP 6 or circuits are provided which allow automatic or manual of one of two inputs which may be applied to the Audio Applicable electronic control circuitry also allow for requiring the addition of a message repeater such as EST RAMM A or MVM amplifiers are designed to provide audio distribution paging tone generation for small to medium systems may also be used in with existing UL Listed Fire Control Panels since they integral tone generators selectable for slow whoop 1 kHz or and a paging microphone Series Audio Amplifiers Manual HIGH LEVEL AND GREEN LEDS OFF INPUT LEVEL LOW TRBL VOLTAGE Disconnect and secondary before servicing AMPLIFIER FIRE PROTECTIVE SIGNALING USE AA75 25 to manual 250046 May complete electrical ratings installation diagram S SYSTEMS TECHNOLOGY AA75 25 to manual 250046 May complete electrical ratings installation diagram HIGH LEVEL AND GREEN LEDS OFF INPUT LEVEL LOW TRBL VOLTAGE Disconnect and secondary before servicing AMPLIFIER FIRE PROTECTIVE SIGNALING USE SYSTEMS TECHNOLOGY AA75P 25 AA75P 25 HIGH LEVEL AND GREEN LEDS OFF INPUT LEVEL LOW TRBL VOLTAGE Disconnect and secondary before servicing AMPLIFIER FIRE PROTECTIVE SIGNALING USE AA75T 25 to manual 250046 May complete electrical ratings installation diagram SYSTEMS TECHNOLOGY AA75T 25 Series Audio Amplifiers Manual mm Series Series Series Specifications HWD lb Environment Temperature Specifications AA75 25 frequency Power Output rms Watts max 1Khz full load Output 75P and 75T series ONLY Max Load impedance per preamp Inputs 1 Max signal level Vrms 2 Max signal level Vrms Max signal level Vrms power Standby Max ripple relay contacts 24Vdc load current max max resistive Impedance Impedance Impedance OFF ON OFF ON ON OFF x 10.5 x 4 140 x 267 x 102 120 49 4KHz Vrms Ohms max 25 without a DAPM Ohms Ohms Ohms 8 Requires DAPM R on the input Vdc mA A V Vdc mA Series Audio Amplifiers Manual Assembly following figure illustrates the amplifier mounting location when cabinet 240075 is used This cabinet is a surface mount unit with lock front door STRAP SUPPLY MODULE CM2 N SERIES 3 Setup following illustrates the mounting hardware for this type of COVER