| 摘要 |
<p>The invention facilitates optical signals generated from customer premise equipment (CPE) (290) at the edges of the metro domain networks. The CPEs (290) are connected to extension terminals (220) that transform the optical signal originating at the CPE into a suitable format for long haul transmission. The optical signal then propagates to a primary terminal (210) where the signal is multiplexed with other optical signals from other extension terminals. The multiplexed signals are then transmitted over LH or ULH network to a second primary terminal where the signal is then demultiplexed from other optical signals and transmited to the proper extension terminal. At the extension terminal, the demultiplexed optical signal is transformed from its LH format back into a format suitable for inter-connection to a CPE.</p> |
