FiOS doesn't give you a dedicated line. FiOS uses one wavelength to transmit downstream traffic. All subscribers on a segment (up to 32 or 64) receive all downs

FiOS doesn't give you a dedicated line. FiOS uses one wavelength to transmit downstream traffic. All subscribers on a segment (up to 32 or 64) receive all downstream traffic. Your ONU discards the traffic not intended for you. The headend limits the amount of traffic destined for your ONU according to your rate plan. All subscribers on a segment share another wavelength for sending traffic. TDMA is used on the upstream. The number of slots assigned to your ONU varies depending upon your rate plan. Also dynamic bandwidth allocation can be used to adjust the number of slots assigned to an ONU based upon the traffic being sent by the ONU. FiOS uses dynamic bandwidth allocation to enable oversubscription on a segment; therefore, FiOS spends can be impacted by the usage of your neighbors just as cable can be.