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Photos: Verizon OLT
The optical line terminal, or OLT, sits in a regional office in Verizon's network. It uses a technology call passive optical networking or PON to split the optical signal so bandwidth can be shared among users. Each card in the chassis services 32 households.
Photos: Fios network
Alexander Laparidis, a director at Verizon Labs, explains the network architecture behind the Fios TV service.