What is the Difference between MPO and MTP Cable?
With the demand for high-speed communications and data capacity in data center 40G/100G network cabling, high-density MPO and MTP fiber optic connectors and patch cords are becoming increasingly popular. These multi-fiber connectors support higher bandwidth and higher-density applications, making them ideal for modern fiber optics infrastructure. This article will explain what MPO and MTP cables are, their main differences, and how to choose between them.
What is MPO Cable?
MPO (Multi-Fiber Push On) is the first-generation multi-core connector, developed by Japan’s NTT Communications in the 1980s. The size of an MPO connector is similar to that of a standard SC connector but with several times the density, saving significant space and resources in fiber optic communications. Typically, a 12-core optical fiber can be arranged in a row within an MPO connector, supporting one or more rows of fibers. According to the number of cores, MPO connectors can be single-row (12 cores) or multi-row (24 cores or more), with configurations up to 16/32 cores supporting 400Gb transmissions. This allows MPO connectors to simultaneously transmit multiple 12-core optical fiber signals, making them ideal for high-density termination in data centers.
What is MTP Cable?
MTP (Multi-fiber Termination Push-on) is a high-performance version of the MPO connector, produced by US Conec. MTP connectors are registered trademarks and comply with the international standard IEC-61754-7 and the American standard TIA-604-5 (FOCIS5), ensuring compatibility with MPO connectors. While the design differs slightly, MTP offers superior optical and mechanical performance, making it a preferred choice for high-bandwidth applications.
US Conec MTP Cable (left) and FSG MPO Cable (right)
The Differences Between MPO and MTP Cables
The primary differences between MPO and MTP cables include:
- Removable Outer Frame Sleeve: The MTP connector features a removable outer frame sleeve, allowing users to reprocess, polish, and flexibly change the polarity of the MT ferrule.
- Floating Ferrule: MTP connectors utilize a floating ferrule design, enhancing transmission performance during mechanical docking by maintaining physical contact under load.
- Metal Pin Clip: MTP connectors include a metal pin clip to secure the push ring, reducing the risk of accidental breakage when mating with the plug.
- Elliptical Guide Pins: MTP connectors use elliptical, metal guide pins instead of the flat-ended plastic pins in MPO connectors. This design reduces insertion losses and wear, improving durability and reliability over time.
How to Choose Between MPO and MTP Connectors?
MTP/MPO Cable
Choosing between MPO and MTP connectors depends on your specific application and requirements. For ribbon fiber cables and established standards, MPO may be the better choice. However, for round fiber cables, ease of use, and reliability, MTP is often preferred.
Consider factors such as fiber count, insertion loss, and return loss when selecting your connector type. Both MPO and MTP connectors are available in various configurations, such as 8-fiber, 12-fiber, and 24-fiber connectors, to meet different needs.
In Conclusion
MPO and MTP fiber optic connectors offer compact, high-density solutions for multi-core fiber optic connections, saving space and enhancing efficiency in data centers and high-bandwidth applications. While they differ in design and mechanical performance, both serve specific purposes effectively. When choosing between MPO and MTP, consider your particular requirements and consult with a knowledgeable supplier to ensure an informed decision. Both connectors support future network upgrades, expansions, and changes, providing great flexibility and scalability for modern fiber optics infrastructure.
