Is the MTP Connector Compliant to MPO Specifications?
Introduction:
The demand for high-speed and high-density fiber optic connectivity has driven the development of new technologies and standards. Two such technologies are the MTP (Multi-fiber Termination Push-on) and MPO (Multi-fiber Push-on) connectors. These connectors are widely used in data centers, telecommunications networks, and other applications that require efficient and reliable fiber optic connections. In this article, we will explore the similarities and differences between the MTP and MPO connectors and determine if the MTP connector is compliant with MPO specifications.
Understanding the MPO Connector:
The MPO connector is a multi-fiber connector that simplifies the cabling process by allowing multiple fibers to be terminated simultaneously. It features a push-pull design that enables quick and easy connections. The MPO connector has a rectangular ferrule with a precise arrangement of fibers. The number of fibers can vary from 8 to 72, with 12 and 24 fibers being the most common configurations.
The MPO connector is specified by the International Electrotechnical Commission (IEC) under the IEC 61754 series. The standard covers various aspects of the connector design, including dimensions, tolerances, and mechanical requirements. It defines the physical parameters to ensure compatibility and interoperability between different MPO connectors from various manufacturers.
Introducing the MTP Connector:
The MTP connector, on the other hand, is a brand name for a specific type of MPO connector developed by US Conec. While it retains the basic design and functionality of the MPO connector, the MTP connector introduces some enhancements. These improvements are primarily focused on performance optimization and ease of use.
One significant enhancement of the MTP connector is the introduction of elliptical-shaped guide pins. These guide pins allow for precise alignment between connectors, resulting in lower insertion loss and higher performance. Additionally, the MTP connector features removable housings, which enables field polarity change and inspection/cleaning of the connector endfaces.
Comparing MTP and MPO Connectors:
Now that we have a basic understanding of the MPO and MTP connectors let us compare them side by side to identify similarities and differences in their specifications.
1. Connector Dimensions: Both the MPO and MTP connectors have the same overall footprint and utilize the same ferrule design. However, the MTP connector incorporates specific enhancements to optimize performance.
2. Fiber Count: Both connectors can support various fiber counts ranging from 8 to 72. The most commonly used configurations are 12 and 24 fibers.
3. Polarity: The MPO and MTP connectors both support three different polarity methods: Method A, Method B, and Method C. These methods determine the fiber mapping within the connector and enable proper signal transmission in multi-fiber systems.
4. Performance: The MTP connector offers superior optical performance compared to a standard MPO connector. The elliptical-shaped guide pins in the MTP connector ensure better alignment and, consequently, reduced insertion losses and reflections.
5. Compatibility: The MTP connector is backward compatible with the MPO connector. This means that MTP connectors can be used with MPO connectors without any issues. However, it is essential to note that the increased performance benefits of the MTP connector might not be fully realized when connected to an MPO connector.
Conclusion:
In conclusion, the MTP connector is compliant with MPO specifications. The MTP connector is essentially an enhanced version of the MPO connector with improvements in performance and usability. While the MTP connector retains the same basic design and dimensions as the MPO connector, it introduces specific enhancements like elliptical-shaped guide pins and removable housings. These enhancements result in improved alignment, lower insertion losses, and better overall optical performance.
It is crucial to note that the MTP connector is fully compatible with the MPO connector, allowing for seamless integration into existing fiber optic networks. However, it is advisable to use MTP connectors in applications that require maximum performance, such as high-speed data centers or long-span telecommunications networks. With their superior performance and backward compatibility, the MTP connectors are well-suited for various demanding fiber optic applications.

