
AIMS Attachment A: AIMS Statement of Work
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ii The LED display must be readable in all ambient light conditions
including direct sunlight.
iii Lens surface material must contain a 90% ultraviolet (UV) inhibitors
clear glazing to protect from fading and/or yellowing to lens panel.
iv All lens materials must be pre-approved by a licensed Engineer
before acceptance.
E. Maintenance Access Door
1. The display housing shall provide safe and convenient front service
access for all modular assemblies, components, wiring and other
materials located within the housing.
2. Front service access panel must be able to stay opened, in a locked
position, for servicing.
3. Service access shall be easily obtained by removing individual LED
modules.
4. Removing the associated modules shall access internal components.
F. Controller:
1. The primary face of the display shall have its own controller, which can
be individually addressed by its hardware and shall be able to run
independently from the controlling computer allowing displays to
operate even when computer or software is turned off.
2. Communication to the LED display(s) shall be via the LAN (TCP/IP).
The LED devices shall include all required Network Interface Cards
(NIC) and appurtenances to support this communication.
3. Any new controllers shall be fully compatible with the existing LED
devices.
G. Electrical:
1. The LED modules shall be powered with regulated switching DC power
supplies.
2. Power supplies shall protect the LED pixel matrix and driver circuitry in
the event of power spikes and surges.
3. Wiring for the LED display modules and other internal components
shall be installed in the housing in a neat and professional manner.
Wiring shall not impede the removal of display modules, power
supplies or other sign components. Wires shall not make contact with
or be bent around sharp metal edges. All wiring shall conform to the
National Electric Code (NEC).
Exhibit 3
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