Request for Proposals – Airport PA System Upgrade
1.1
Current System
The existing terminal PA system consists of a Bogen PCM with TIM/CPU/ZPM modules. A DMX
music output is connected into a Viking Digital Announcer for pre-programmed messages which
subsequently connects to the Bogen PCM. PA announcements are currently made utilizing
either two hard-wired microphones or by calling a phone number connected to the Bogen PCM.
There are two zones in the building. The Bogen PCM is connected to a TOA 900 Series Amp
(microphones), and TOA 700 Series Amp (Secure Zone Output), and a Telecor 125 Amp (NonSecure Zone Output).
1.2
Current System Upgrades in Process
The Airport is currently installing a Mitel IP Phone system which is planned to replace both the
two hard wired microphones and the dial-in phone number currently used for paging.
1.3
Project Components
-Utilize existing Bogem PCM with TIM/CPU/ZPM modules
-Utilize existing DMX music output
-Replace Viking Digital Announcer
-Replace Amps
-Provide components needed to meet the intent of this project as further defined
1.4
Desired Features
-All equipment to be rack mounted in new wall mounted rack
-Pages shall be accomplished through integration with the Mitel VoIP system
-Provide page stacking, feedback elimination, pre-recorded messaging and background music
integration utilizing a single rack mounted device. (Bogen BOMDMU)
-Pre-recorded messaging shall be in a digital format and shall be remotely programmable using
the Mitel VoIP phones
-System shall be capable of storing and playing a minimum of 10 messages for a total minimum
combined length of 7 minutes.
-Paging shall override or delay pre-recorded messages
-Paging and pre-recorded messages shall override background music
-When multiple attempts are made to page at the same time the system shall store the latter
message to be played after the initial message is completed
-System shall be compatible with ambient noise sensors
-System shall provide an audible ping sound, as selected by the system administrator, when a
page is initiated
-System shall have the capability to automatically adjusting volume level of pages to avoid pages
that are considerably louder or muted than the average page
-User shall have the option of paging to a single zone or all zones based on user input
-Sound quality shall be high-quality and void of static, noise, or distortion at all loudspeakers at
all times including when system is in standby mode with inputs off.
-System shall allow for output to up to a minimum of 3 zones but shall be connected to 2 zones
under the scope of this project
1.5
Scope
-Proposer shall provide a quote for all components, labor, and incidentals to provide the airport
with a fully functioning PA system per these specifications
-Proposer shall re-use the existing Bogen PCM with TIM/CPU/ZPM and DMX Music Output to
the extent possible
-Proposer shall utilize Bogen components for new systems unless otherwise specified and
approved
-Proposer shall remove all existing components including existing wall rack, system components,
and amps from the wall prior to commencing installation
-Proposer shall furnish and install a new wall mounted rack capable of containing all of the
systems needed under this project with the capability of a minimum additional 2U’s of storage
-Proposer shall furnish and install a new rack mounted UPS capable of maintaining the paging
system for a period of 30 minutes
-Proposer shall install existing Bogen PCM in the newly provided rack
-Proposer shall furnish and install in the provided rack all additional components needed to
provide the desired specifications as covered in 1.4
-Proposer shall furnish and install new rack mounted Bogen amplifiers and mixers capable of
meeting these specifications:
-Mixer Amplifiers shall be Bogen, model number V-Class.
-The Power Amplifiers shall be Bogen, model number M-Class. The units shall have the
following features:
-Available in three power level: mono – 600W, 900W, and 1200W, for 70V speakers
systems; stereo – 300W, 450W, and 600W per channel @ 4 ohms. Amplifier size shall
be determined by zone wattage requirements.
-Mounting: Rack.
-Output Power:
-70 V balanced line.
-80 percent of the sum of wattage settings of connected for each station and
speaker connected in all-call mode of operation, plus an allowance for future
stations.
-Minimum Signal-to-Noise Ratio: 103-109 dB ref, at rated output.
-Frequency Response: Within plus or minus .25 dB from 20 Hz to 20 kHz.
-Output Regulation: Less than 1.5 dB from full to no load.
-Controls: On-off, input levels, and low-cut filter.
-Proposer shall connect all components including the components necessary to provide the use
of the Mitel phone system as a paging device (existing Cisco POE switches are available for
outputs but will require needed hardware for FXO)
-Proposer shall connect existing DMX Music Output and place in rack using a new rack shelf to
be provided by proposer
-Proposer shall test system to the satisfaction of owner and shall warranty work for a period of 1
year
-Proposer shall provide a summary of the installed system in a graphical format to the Airport
1.6
Wiring Methods
Wiring within Enclosures: Bundle, lace, and train cables to terminal points with no excess and
without exceeding manufacturer's limitations on bending radii. Provide and use lacing bars and
distribution spools.
1.7
Installation of Cables
-Comply with NECA 1.
-General Cable Installation Requirements:
-Terminate conductors; no cable shall contain un-terminated elements. Make
terminations only at outlets and terminals.
-Splices, Taps, and Terminations: Arrange on numbered terminal strips in junction, pull,
and outlet boxes; terminal cabinets; and equipment enclosures. Cables may not be
spliced.
-Secure and support cables at intervals not exceeding 30 inches (760 mm) and not more
than 6 inches (150 mm) from cabinets, boxes, fittings, outlets, racks, frames, and
terminals.
-Bundle, lace, and train conductors to terminal points without exceeding manufacturer's
limitations on bending radii. Install lacing bars and distribution spools.
-Do not install bruised, kinked, scored, deformed, or abraded cable. Do not splice cable
between termination, tap, or junction points. Remove and discard cable if damaged
during installation and replace it with new cable.
-Label cables
-Separation of Wires: Separate speaker-microphone, line-level, speaker-level, and power wiring
runs.
1.8
Installation of System
- Match input and output impedances and signal levels at signal interfaces. Provide matching
networks where required.
-Equipment Cabinets and Racks:
-Group items of same function together, either vertically or side by side, and arrange
controls symmetrically. Mount monitor panel above the amplifiers.
-Arrange all inputs, outputs, interconnections, and test points so they are accessible at
rear of rack for maintenance and testing, with each item removable from rack without
disturbing other items or connections.
-Blank Panels: Cover empty space in equipment racks so entire front of rack is occupied
by panels.
- Volume Limiter/Compressor: Equip each zone with a volume limiter/compressor. Install in
central equipment cabinet. Arrange to provide a constant input to power amplifiers.
- Ground cable shields and equipment to eliminate shock hazard and to minimize ground loops,
common-mode returns, noise pickup, cross talk, and other impairments.
-Signal Ground Terminal: Locate at main equipment cabinet. Isolate from power system and
equipment grounding.
1.9
Proposal
-Proposer shall furnish the following for consideration:
-Project cost proposal
-Complete list of project components included in cost proposal
-Summary of intended installation scheme
-Exceptions, if any, from these specifications
-Estimated time to completion
-The Airport reserves the right to reject any proposal for any reason
-Payment shall be made upon successful completion of the project
2.0
Deadline
-Proposals shall be submitted no later than Friday December 6th at 2:00 PM to the following
address:
Airport Managers Office
2850 Airport Road
La Crosse, WI 54603
Or
torpc@lseairport.com