The 12 core MPO / MTP connector can support a single 100g channel. However, the use of a 12 core connector for a transmission channel that only requires eight fibers will result in idle waste of four other cores. Therefore, we usually choose another solution to replace it: connect a 24 core MTP link head with three 8-core 100g transmission channels on a jumper, so as to optimize the resource allocation and make every fiber be used reasonably.
Some people believe that the more fiber cores will lead to more insertion loss, so the 24 core connector is not as cost-effective as the 12 core connector. Indeed, insertion loss is a key parameter in jumper deployment in data centers. In an optical fiber system, if the insertion loss is less, the data transmitted will be more accurate. For example, the 40 / 100gbe standard defined by IEEE 802.3ba stipulates that the insertion loss of OM3 optical fiber must be controlled within 1.5 dB within 100 m transmission distance, while the insertion loss of OM4 fiber must be controlled within 1.0 DB within 150 m transmission distance. If the insertion loss increases, it means that the data transmission distance will be shortened. However, with the extension of the backbone network access, the trend of convergence / 100M network access has decreased.
Some people mistakenly believe that more fiber cores will lead to more insertion loss, which is supported by the fact that a 24 core connector has a loss of 0.5 dB. In fact, no matter 12 core MPO / MTP connector or 24 core MPO / MTP connector, the maximum loss specified in the industry standard is less than 0.5 dB. Moreover, if the correct polishing technology is used, the performance of 24 core MPO / MTP joint and 12 core MPO / MTP joint is almost the same.
The maximum insertion loss of OM3 and OM4 24 core plug-ins of HTF is less than 0.35 dB, which is consistent with the insertion loss of 12 core MPO / MTP module. Its components are in strict accordance with IEEE 802.3ba standard, and the reduction of insertion loss can make data transmission further.
