Specifications

Technology Upgrade Paging Bell System-One Way 28 1800-4
1224_01
4. Speaker voltage shall be 25 or 70 volt.
5. Provide a tile bridge with each speaker for installation in a standard drop ceiling.
6. Provide a backcan for each speaker.
7. Speaker shall have taps at 1/8W, 1/4W, 1/2W, 1, 2 and 4 watts.
8. Each speaker shall have an individual volume control on the speaker.
9. Paging system speakers for drop ceilings shall be Atlas Sound # SD72WV or equal.
10. Where the speaker shall be mounted flush into the drywall the contractor shall
provide a backbox for the speaker.
F. Speakers for exterior, gymnasium, and mechanical spaces shall be horn type speakers:
1. Horns for the exterior of the building shall be 15-watt horns that are weather-resistant.
2. Each horn shall be capable of being mounted to a standard double-gang backbox.
Speaker cables shall route through the base of the speaker and shall not be exposed.
3. All horns shall be white in color and be capable of being positioned anywhere in a
360 degree axis.
4. Exterior 30-watt horns shall be Atlas Sound GA-30T or equal.
G. Speakers for indoor areas where there is no drop ceiling shall be installed inside a backbox
that provides support for the speaker when mounted directly to the building structure.
1. Speaker shall be an 8 inch loudspeaker with a painted white baffle and backbox.
2. Each speaker shall have a 10oz. magnet.
3. Sensitivity shall be 92dB at 1M/1W.
4. Speaker primary voltage shall be 70Volt.
5. Provide all mounting hardware required to attach speaker and backbox to the building
structure.
6. Speaker shall have 70 volt taps at .25, .5, 1.2 and 4 watts.
7. Paging system speakers for drop ceilings shall be Atlas Sound # SBMS or equal.
H. Auxiliary audio input (combination CD Player or MP3 player) for the paging system:
1. The paging system has the ability to take an auxiliary audio input for playing audio
through the paging system speakers.
2. Install a wire and faceplate in the school office to allow auxiliary input. Label for
paging system input.
I. Desktop microphone for paging system:
1. The microphone shall be a desktop model that has a locking mechanism on the
control bar.
2. Pickup of the microphone shall be omni-directional while being tailored for speech
pick-up.
3. Frequency response shall be 200-5,000Hz.
4. Microphone shall have a cable that terminates in an XLR connector and is compatible
with the XLR connector at the microphone faceplate.
5. The desktop microphone shall be a Shure No. 522 or Engineer approved equivalent.
J. Cables:
1. The contractor shall install all cables required for connectivity of each speaker zone
throughout the building. All cabling routed above the drop ceiling shall be plenum
rated.
2. Install cabling required for connection of the paging/bell system to a control PC in the
administration office.
3. All cabling required for complete system functionality and control and interface with
the telephone system shall be installed, labeled and terminated by the contractor.
4. Label the cables with a wrap-around label at each speaker and at the paging system.
Label it for the zone to which it is connected.
PART 3 - EXECUTION
3.01 INSTALLATION