Optical fibre networks

摘要

An optical fiber transmission distribution assembly, wherein the assembly comprises at least a first splitter having a first split ratio of 1:x (where x is an integer) connected to optical drop cables leading to subscribers, and at least a second splitter having a second split ratio of 1:y (where y is an integer and is different from x), and transfer means whereby an optical drop cable connected to the first splitter can be transferred to receive split optical signals from the second splitter, thereby enabling the signal in the transferred drop cable to be further split by addition of a third splitter at a ratio of 1:p (where p is an integer), to provide p subscriber connection points each having a 1:p*y split ratio at the subscriber end of the transferred drop cable.

主权项

1. An optical fibre transmission distribution assembly, wherein the assembly comprises:
at least a first splitter having a first split ratio of 1:x (where x is an integer) connected to optical drop cables leading to subscribers, at least a second splitter having a second split ratio of 1:y (where y is an integer and is different from x), and transfer means whereby an optical drop cable connected to the first splitter can be transferred to receive split optical signals from the second splitter, wherein the transfer means comprises at least one automatic fibre management unit (AFM) connectable to direct split optical signals received from the first splitter at a first split ratio 1:x in use (where x is an integer and is at least 2) to optical drop cables leading to subscribers, and wherein the said management unit is remotely controllable to transfer a selected drop cable connection to receive split optical signals from the second splitter having a second split ratio 1:y (where y is an integer and is less than x), thereby enabling the signal in the transferred drop cable to be further split by addition of a third splitter at a ratio of 1:p (where p is an integer and p multiplied by y equals x), to provide p subscriber connection points each having 1:x split ratio at the subscriber end of the transferred drop cable.