The distance a CCTV signal may be run is determined by the strength of the signal at the source, required signal strength at the receiver, and:
The average power consumption in a telecommunications room (TR) is 2260 watts per hour. What is the heat dissipation in BTUs?
In (ESS) design, employees, reputation, and materials are all examples of:
Phase difference is the relationship in time between two waveforms of the same:
You have been asked what the estimated power cost will be per month (30 days) for the new equipment room you are designing. The power load you have calculated to be an average of 1850 watts per hour. What is the monthly cost assuming the cost of electricity is 7.5 cents (U.S.) per kilowatt hour?
You are designing a restaurant located within a retail mall. The ambient noise level of the restaurant is 70 dB. The ambient noise level of the mall common space is 75 dB. What is the MINIMUM sound pressure level (SPL) that should be used when designing the paging system within the restaurant?
For design purposes, loudspeakers are rated for a measured sound pressure level (SPL) at:
What is the recommended distance between ceiling mounted speakers in a hallway with heavy traffic?