Optical transport network ; transmission model ; optical cross - connector ; optical add drop multiplexer 光傳送網(wǎng)傳輸模型光交叉互連光分插復(fù)用
The dotted line in figure 1 represents the " multi - port broadband manager " , which serves to integrate the tm , atm equipment and 44 , 441 cross - connectors in sdh into one module 圖1中虛線部分為"多光口寬帶管理器" ,它將sdh的tm 、 atm設(shè)備及44交叉機(jī)、 441交叉機(jī)集成為一個(gè)模塊。
The concept of the graph form of a blocking optical cross - connector is introduced so as to investigate the blocking situation . the principle is that the blocking node can be replaced by a graph which is composed of nonblocking nodes and capacity limited edges . three graphs of typical optical cross - connector nodes are demonstrated . several uniform result are derived from these examples 該方法的基本思想是用圖來(lái)替代交換能力受限制的節(jié)點(diǎn),而此圖由交換能力不受限制的節(jié)點(diǎn)和容量受限的邊組成。文中以典型的阻塞oxc節(jié)點(diǎn)為例,給出了它們的圖表示,并通過(guò)例子得出一般的oxc節(jié)點(diǎn)圖表示求法的一些普遍結(jié)論。