A small community with 400 subscribers is to be serviced with a community dial office switch. Assume that the average subscriber originates 0.1 erlang of traffic. Also assume that 20% of the originations are local (intracommunity) 1011 calls and that 80% are transit calls to the serving central office. How many er- langs of traffic are offered to the community-dial-office-to-central-office trunk group? How many trunks are needed for 0.5% blocking of the transit traffic?

A small community with 400 subscribers is to be serviced with a community dial office switch. Assume that the average subscriber originates 0.1 erlang of traffic. Also assume that 20% of the originations are local (intracommunity) 1011 calls and that 80% are transit calls to the serving central office. How many er- langs of traffic are offered to the community-dial-office-to-central-office trunk group? How many trunks are needed for 0.5% blocking of the transit traffic?

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter17: Commercial And Industrial Air-conditioning Control Systems

Section: Chapter Questions

Problem 24RQ

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