ODF Unit,Optical Fiber Splice Distribution box,or Optical Distribution Frame unit,is applied in introducing,fixing and protecting the optic cable,splicing fiber termination with pigtails. The quantity of units and flange tray is optional according to the users actual. ODF Unit Box (Optical Distribution Frame Unit Box) is a standard 19-inch rack-mounted optical distribution device, applied for the termination, splicing, distribution and routing of optical cables in fiber communication equipment rooms. Create a comprehensive distribution framework. Its small size and a grip on the rail (TS35) make the splice box suitable for mounting in every cabinet.