Corning multimode and single-mode fiber structured cabling solutions support Ethernet standard 10/40/100/200G data rates and provide a migration path to emerging 400G and future 800G/1.6 Tb data rates. Data center operators clearly expect connectivity solutions to support multiple Ethernet data rate generations to ensure a 10- to 15-year service life is maintained.
After much discussion with ASIC, transceiver and switch vendors, the solutions today (40/100/200GbE) and in the future (400/800GbE and 1.6 Tb) all converge on duplex-fiber serial and 8-fiber parallel transmission with some interim solutions along the way.
With current transceiver and switch vendor trends leading to 2- and 8-eight fiber transceivers, there is a need for optimized optical connectivity solutions. Traditional MTP®的解决方案是基于12-fiber连接器,which is not always divisible by eight. Based on this information, to simplify network design and operation, improve fiber utilization, and reduce costs and attenuation in an optical link, an 8-fiber-based infrastructure provides the optimal solution.
A base-8 infrastructure (illustrated in Figure 1) consists of backbone trunks that have 8-fiber legs and modules that have four ports (8 fibers) and 8-fiber harnesses. Since parallel connectivity uses eight fibers out of the available 12 fibers in the connector, the issue arises with a base-12 infrastructure to either leave the four middle fibers dark or use some type of conversion device. A conversion device can convert two 12-fiber links into three 8-fiber links. This allows all fibers to be utilized, giving you three parallel links for each 24 fibers of the installed base-12 trunk cables. This is not necessary when a base-8 infrastructure is installed.