光学纤维。第2 - 20部分：产品规范。A 2类多模光纤分规范。
Optical fibres - Part 2-20: product specifications - Sectional specification for category A2 multimode fibres.
光学纤维。第2-30部分：产品规范.A3类多模光纤分规范。
Optical fibres - Part 2-30 : product specifications - Sectional specification for category A3 multimode fibres.
玻璃纤维芯有两种基本的类型：多模光纤，用于10km以下的距离；单模光纤，用于更长的距离。
The glass fiber core comes in one of two basic types: multimode fiber for distances up to 10km and single-mode fiber for longer distances.
在这个几乎所有的纤维变体，如多模，单模或长程，可实现由SFP光纤模块的使用，此外，5固定千兆tx端口可以使用方式。
In this way nearly every fiber variant, such as multimode, single-mode or long haul, can be realized by the use of SFP fiber modules and, furthermore, 5 fixed Gigabit TX ports can be used.
在这个几乎所有的纤维变体，如多模，单模或长程，可实现由SFP光纤模块的使用，此外，5固定千兆tx端口可以使用方式。
In this way nearly every fiber variant, such as multimode, single-mode or long haul, can be realized by the use of SFP fiber modules and, furthermore, 5 fixed Gigabit TX ports can be used.
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