During your RRA assessment of a potential Cisco TelePresence System 1300 room you notice:
• The HVAC diffuser has noticeable noise (measured at48 1dB) which sounds like rushing air What
three recommendations should be made to the customer? (Choose three.)
A.
The customer should turn the fan level down on the HVAC system to insure the fan noise is
minimized in the Cisco TelePresence room
B.
The customer should contact an HVAC specialist to review and recommend an appropriate
solution
C.
The customer should not worry about the HVAC fan noise because the Cisco TelePresence System
uses a noise suppression algorithm designed to identify HVAC fan noise and minimize those
frequencies
D.
The customer should replace the diffusers with a diffuser that is rated with a noise criterion of 10
or greater
E.
The customer should replace the ducting directly above the room with acoustically treated
ducting to remove the sound of rushing airflow