What is a PAssive Optical network (PON) ?
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Basically its a optical network without any 'electronics' but only optical splitters.
An analogy would be like a hub in a lan..
but here TDMA is used.
Its used for Fiber To The Curb/premises..
So from a single fiber from the provider,which connect to the backbone at providers end,its splitted using an passive optical splitter up to 32lines,Then the subscriber connects to this fiber via the ONU.Sometimes from these ONU's another interface is used to connect to customer like xdsl or any other channels of connectivity..
An analogy would be like a hub in a lan..
but here TDMA is used.
Its used for Fiber To The Curb/premises..
So from a single fiber from the provider,which connect to the backbone at providers end,its splitted using an passive optical splitter up to 32lines,Then the subscriber connects to this fiber via the ONU.Sometimes from these ONU's another interface is used to connect to customer like xdsl or any other channels of connectivity..
Aces170
Forerunner
Ok I guess I understood some part of it. Basically its a network which does the splitting of signals without any electronic equipments.
So I am guessing here, that it would be cheaper to a traditional optical network right ? What about performance issues, how would it compare to a "normal" optical network ?
You been a good help m8..
So I am guessing here, that it would be cheaper to a traditional optical network right ? What about performance issues, how would it compare to a "normal" optical network ?
You been a good help m8..
Yes,its substantially cheaper than traditional optical network(SONET based),which is the primary reason why its pushed for FTTx .
and splitters being passive,least maintenance.
There are four type's of PON's
APON – ATM PON (155M to 622M)
BPON – Broadband PON (155M to 1.25G)
EPON – Ethernet based PON (1.25G)
GPON – Gigabit PON (622M to 2.5G)
Wiki has clearly mentioned about all above there..
There is also WDM-PON,which is quite important development in PON's perspective,which uses wavelength division multiplexing,so multiple optical wavelength are used,which as u can imagine, improves capacity.
It employs a single mode fiber btw..
and there are a lot of new PON standards which im not aware of.
As i understand in japan,NTT has deployed PON very widely (Now u know where the 100M internet at their home came from
)
and splitters being passive,least maintenance.
There are four type's of PON's
APON – ATM PON (155M to 622M)
BPON – Broadband PON (155M to 1.25G)
EPON – Ethernet based PON (1.25G)
GPON – Gigabit PON (622M to 2.5G)
Wiki has clearly mentioned about all above there..
There is also WDM-PON,which is quite important development in PON's perspective,which uses wavelength division multiplexing,so multiple optical wavelength are used,which as u can imagine, improves capacity.
It employs a single mode fiber btw..
and there are a lot of new PON standards which im not aware of.
As i understand in japan,NTT has deployed PON very widely (Now u know where the 100M internet at their home came from
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