American Telephone and Telegraph Company, American Telephone and Telegraph Company. Information Dept · (New York, American Telephone and Telegraph Co., etc.) · leaf 68
ormal operation ofthe system. In case a failure shouldoccur, the source of trouble can bequickly localized by the remote test-ing facilities provided, which enable. any of the stations, fully automaticemergency sources of power comeinto operation to restore the systemto service. As previously… … Interior of the East Ocean View station. At the right is the radio transmitterwith its rectifier unit, and in the adjacent bay the line circuits and testing arrange-ments. At the left is the radio receiver. The fireproof door at the rear leads intoa room housing the emergency power-supply apparatus…
Telephone
Internet Archive Book Images · Prelinger Library · No known copyright restrictions (public domain). Free to use for anything.
