1
کامپیوتر و شبکه::
دی مالتی پلکس
An important property of the AWG is the free spectral range (FSR), also known as the demultiplexer periodicity [5].
At the remote node, the signals are demultiplexed by the 1xN AWG (R1) and transmitted to each subscriber via the drop fiber.
The upstream signals sent to the receivers at the OLT are demultiplexed by the 1xN AWG (C2).By monitoring the upstream data transmission signals, CO can easily keep trace of the connection status for each ONU.
At the remote node, the signals go through the second WDM coupler and an AWG is used to demultiplex them.
WDM coupler 2 (see dashed square 4 in Fig. 3.9) is composed by a 1×2 demultiplexer and two optical filters (see figure 3.12), which is used to separate the data and OTDR signal, and send them into two different output ports.
واژگان شبکه مترجمین ایران