Gigabit Passive Optical Networks (GPON)
Gigabit Passive Optical Networks (GPON) is the leading
technology being used in FTTx (FTTH) deployments. PON is different than other
optical network topologies in that it is a Point to Multi-Point (P2MP)
topology. From the Central Office’s (CO) Optical Line Terminal (OLT, with SFP
GPON transceiver/module) a single strand of fiber goes out to a passive optical
splitter where its signal is multiplied to 64(128) different lines.
The TX and RX signals operate on different wavelengths allowing
bi-directional operation over a single fiber. Anything transmitted from the OLT
is transmitted to all 32 lines. It is up to the customer’s system (Optical
Network Unit - ONU) to determine what packets are for that customer. All other
packets are discarded. The PON current standards have defined downstream data
rates up to 2.5Gbps.
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Product list & Datasheet