Compact High Density Central Office Fiber Distribution System

Abstract

A fiber distribution system having a rack mounted chassis and a fiber distribution rack to mount in the chassis. The system includes one or more splitter modules which are designed to be mounted in the fiber distribution rack. The splitter modules have a compact design and contain a plurality of fiber splitters. The fiber distribution system also contains a cable guide tray for supporting the fiber cables and the system includes a plurality of radius limiters to minimize cable bends.

1 . A fiber distribution system (FDS), comprising:
 a rack mountable chassis;   a fiber distribution rack configured to be mountable to the chassis; and   a plurality of splitter modules configured to be mounted internal to the rack.   
     
     
         2 . The FDS of  claim 1 , further comprising:
 a cable guide tray configured to be affixed to the front of the fiber distribution rack.   
     
     
         3 . The FDS of  claim 2 , wherein the cable guide tray comprises at least one curved end configured to eliminate excessive cable bend. 
     
     
         4 . The FDS of  claim 2 , wherein the cable guide tray comprises a plurality of cable retention clips positioned on the side of the cable guide tray opposite the connections to the fiber distribution rack and located in line with at least one splitter module. 
     
     
         5 . The FDS of  claim 2 , wherein the cable guide tray comprises a plurality of cable guide slots positioned on the side of the cable guide tray opposite the connections to the fiber distribution rack and located in line with at least one splitter module. 
     
     
         6 . The FDS of  claim 1 , wherein the fiber distribution rack includes a plurality of guides located within the fiber distribution rack for accepting the plurality of splitter modules. 
     
     
         7 . The FDS of  claim 1 , wherein each splitter module further comprises:
 a rectangular sealed enclosure with a face flange on one end of the enclosure and a flange along the longer sides of one face of the enclosure;   a plurality of splitters disposed internal to the enclosure;   a plurality of splice closure (SC) adaptors coupled to the plurality of splitters and positioned on the face flange; and   a pair of fasteners positioned through the face flange and configured to affix the splitter module to the fiber distribution rack.   
     
     
         8 . The FDS of  claim 7 , wherein the plurality of splitters comprises different types and configurations. 
     
     
         9 . The FDS of  claim 7 , wherein the pair of fasteners are nylatches. 
     
     
         10 . The FDS of  claim 7 , wherein the fiber distribution rack includes a plurality of guides for accepting the plurality of splitter modules. 
     
     
         11 . The FDS of  claim 10 , wherein the flange along the longer sides of one face of the enclosure facilitates front end loading of the splitter module into the fiber distribution rack by placing the flange into a corresponding pair of the plurality of guides. 
     
     
         12 . The FDS of  claim 11 , wherein the coupling of the longer sides flange and the pair of guides allows the splitter module to be held in an intermediate position. 
     
     
         13 . A fiber distribution system (FDS), comprising:
 a rack mountable chassis;   at least one fiber distribution rack configured to be mountable to the chassis; and   a plurality of splitter modules configured to be mounted internal to the at least one fiber distribution rack through one face of the at least one fiber distribution rack, comprising:
 a plurality of splitters disposed internal to each of the plurality of splitter modules; and 
 a plurality of splice closure (SC) adaptors coupled to the plurality of splitters. 
   
     
     
         14 . The FDS of  claim 13 , further comprising:
 a cable guide tray configured to support fiber cables immediately adjacent the plurality of splitter modules on the one face of the fiber distribution rack.   
     
     
         15 . The FDS of  claim 14 , wherein the cable guide tray comprises at least one curved end configured to eliminate excessive cable bend. 
     
     
         16 . The FDS of  claim 14 , wherein the cable guide tray comprises a plurality of cable retention clips positioned on the side of the cable guide tray opposite the connections to the fiber distribution rack and located in line with at least one splitter module. 
     
     
         17 . The FDS of  claim 14 , wherein the cable guide tray comprises a plurality of cable guide slots positioned on the side of the cable guide tray opposite the connections to the fiber distribution rack and located in line with at least one splitter module. 
     
     
         18 . The FDS of  claim 13 , wherein the fiber distribution rack includes a plurality of notches located within the fiber distribution rack configured to guide the plurality of splitter modules into the fiber distribution rack. 
     
     
         19 . The FDS of  claim 13 , wherein each splitter module further comprises:
 a rectangular sealed enclosure with a face flange on one end of the enclosure and a flange along the longer sides of one face of the enclosure; and   a pair of fasteners positioned through the face flange and configured to affix the splitter module to the fiber distribution rack.   
     
     
         20 . The FDS of  claim 19 , wherein the pair of fasteners are nylatches.