co je přístupová síť
technologie
PON
P2P  P2MP
FTTx
  
FTTB Fibre To The Building
FTTC Fibre To The Curb
FTTH Fibre To The Home
FTTN Fibre To The Node
FTTO Fibre To The Office
FTTP Fibre To The Premises
FTTx Generic term for all of the fibre-to-the-x above


OLT     OLT Optical Line Termination    u provozovatele 

ONT Optical Network Termination
ONU Optical Network Unit

tohle je z    G.984.3.pdf      
   optical network unit (ONU)
   strana 9 
   5.1 ONT and ONU
The network element interfacing the end-user access facilities and the optical distribution network
(ODN) is herein referred to as an optical network unit (ONU). In the B-PON context, clause 4 of
[ITU-T G.983.1] makes a distinction between an ONT and an ONU. This Recommendation
considers an ONT to be a special (single-user) case of an ONU. However, since from the G-PON
TC layer functionality point of view, these two entities are identical, the term "ONU" herein applies
to both of them, except for the specifically identified cases.


a dale v optika_poradne


spliter - spočítat útlum

a dále viz splitter zde