Spectra technolgies servicing company ltd 智慧廊電腦科技公司
We promise to overcome all defficulties in our customer's way to endless success by means of advanced technolgies, professional skills, and top ranking sevices 我們承諾以先進的技術(shù)、專業(yè)的技能和一流的服務(wù)為您消除發(fā)展道路上的障礙,助您不斷邁向成功。
Presently, the apon system adopts tdma as the access mode on the uplink . it requires not too much in terms of optical performance, but it requires more complex electronic equipment ( e . g ., complex synchronized timing, ranging and delay control technolgies ) to avoid the collision of uplink information packets 目前apon系統(tǒng)在上行信道中采用時分多址的接入方式,它對光性能方面的要求不高,但它要求更復(fù)雜的電子設(shè)備,如要求復(fù)雜的同步定時、測距和延時控制技術(shù),以避免上行信息分組產(chǎn)生碰撞。