zzstandard: Redefining Fashion Standards Introduction: A New Era in Fashion (100 words) In today's fast-paced world, fashion trends come and go at lightning speed. However, one brand has managed to stand out from the crowd and redefine fashion stand
光纤入户(Fiber to the Home,简称FTTH)是一种高速宽带接入技术,通过光纤传输数据信号,将高速互联网接入用户家庭。而光纤入户中的PON(Passive Optical Network,被动光纤网络)则是一种常用的光纤接入技术,它采用光纤传输信号,通过光分配器将信号分配给多个用户,实现高速宽带接入。 1. PON的基本原理 PON是一种被动光纤网络,它由一个OLT(Optical Line Terminal,光线路终端)和多个ONT(Optical Network Termin