Now ONU equipment is using in FTTH. The main fiber comes to machineroom, connects with the Fiber Switch, then distributes to Floor wiring box. Floor wiringbox is actually an optical splitter.Until here, the practice of welding do traditional fiber opticcable is also a traditional cable. Users use the FTTH fiber from opticalsplitter,commonly known as theflat cable, very slender. Please see the details from the pictures. Indoorpanel and connectors with dedicated fiber optic panel and cold joints,the Interface is SC type. This cold joint is differentfrom tranditional cold joint, one side with SC fiber optic connectors,Ends are pre-ground, inside it there is short fiber( this cannot be dismantled,or it willnot be used). Peel the FTTH fiber, in general, there are two fibers(red andblue), taking out one fiber, peel and cut it according to the specific length( You can find the detailsin Splice instruction, commonly use Optical fiber Cleaver). End into the theSplice behind the hole(In the hole there is a fiber-matching liquid, oily), usespecial tools to compress into tight line.TheSplice external interface is an SC adapter outside the hole. Now specificpractices have several Splice installation method slightly different, can notbe detailed.In use, there is a single ONU terminalequipment through a single fiber and fiber-optic jumper access to the outsidefollowed by television and Internet.