Rosenberger Optical Solutions & Infrastructure, manufacturer of fiber optic cabling infrastructures, has launched its new PreCONNECT SEDECIM cabling system. The ferrule end faces of the multi-fiber termination push-on connector (MTP)/multi-fiber push-on (MPO) 16 fiber multimode connector are 8° angled physical contact (APC) angularly polished, which translates into improvements in return loss.

The PreCONNECT SEDECIM is optimized for the 400GBASE-SR8 transmission technology. The APC 8° angled polish is used from the outset for single mode MTP/MPO ferrule end faces to achieve reliable return loss. In Source: Rosenberger Optical Solutions & Infrastructurecontrast to this, only the PC 0° straight polish was previously used for multimode MTP/MPO ferrule end faces.

Due to their PC 0° straight polish design, multimode MTP/MPO connectors were previously particularly susceptible to performance problems caused by dirt particles, resulting in unreliable return loss values. In recent years, this problem has become increasingly severe due to the sharp rise in application data rates. The introduction of reflection-sensitive PAM4 coding at 400GBASE-SR8 and other multimode applications with serial lane speeds of 50 gigabits/second has shown its full extent.

The 400GBASE-SR8 transceivers can now have both an MTP/MPO 16 PC 0° and an MTP/MPO 16 APC 8° as media dependent interface. The distinguishing feature of the innovative MTP/MPO multimode connector system from Rosenberger OSI, with 16 fibers in a row and APC 8° angled polish, is a white bend protection boot on the black connector.