Many companies also are installing a combination of singlemode and multimode fiber in backbones.还有许多公司在主干网中结合安装单模和多模光纤。
Multimode fiber is growing in the horizontal, as well, bringing the benefits of fiber all the way to the desktop.多模光纤正在向水平方向发展，并从各个方面为桌面带来光纤的优势。
Today, most premises networks are installed with multimode fiber in the building backbone and campus backbone segments.今天，许多建筑网络在楼宇主干网和园区主干网部分使用多模光纤安装。