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Introduction to MPO/MTP Cabling System

Nov 8th 2015 at 8:12 PM

The number of network connections in data centers is on the rise. Data centers have to achieve ultra-high density in cabling to accommodate all this cabling in the first place. To solve this, the Multi-fiber Push On (MPO) technology and especially the Media Transfer Protocol (MTP) connectors from the manufacturers US Conec have proven to be a practical solution. This article provides some introductory information on MPO/MTP cabling system. First, let’s get familiar with the MTP/MPO fiber connectors.

MTP/MPO Fiber Connectors
MPO is a connector for ribbon cables with four to twenty-four fibers. The term “MTP” is merely a registered trademark to describe this product which is compliant with the MPO standard. The differences between them come in to play as the MTP connector has added features including the ability to change gender or to re-polish in the field. MTPs also have a floating ferrule to improve performance under load and elliptical guide pins to provide for tight tolerance alignment.

MPO Single-mode Connector


Figure 1 shows a MPO single-mode fiber optic connector.

The compact design of the MPO/MTP connectors allows high-density connections between network equipment, permitting more connectors on the crowded faceplate and reducing the footprint of the system. A MTP connector can hold up to 12 fibers or 6 duplex channels, but still manages to be one of the smallest connectors available today. The push-pull latching mechanism of the design facilitates simple insertion and removal. Spring loaded connector mating is effective in eliminating signal loss.

MTP/MPO Fiber Cable
MPO or MTP cable can be either single-mode or multi-mode. Multi-mode MPO cables are intended to carry multiple signals at once. Single-mode MPO cable is designed to carry only one signal, increasing the bandwidth exponentially.

Fiber optic cable can be terminated in a few ways. Optical fiber pigtails have pre-terminated SC, ST, LC or MT-RJ connectors that are fused on to the end of the optical fiber. MPO and MTP fiber from cables unlimited can be factory-terminated by certified technicians.

MTP/MPO Cable Assemblies and Fiber Trunks
A MPO/MTP cable assembly can greatly reduce the amount of time it takes to get up and running. MPO/MTP trunk cable (see in Figure 2) is often a cost effective alternative to time-consuming field termination. They can come with pre-terminated and tested SC, ST, LC, MT-RJ or MTP/MPO fiber connectors. The assemblies with MTP or MPO fiber connectors are commonly called “plug and play” because of the ease of installation they offer. Another benefit of plug and play cable assemblies is that they take up the least space of all trunk cable options. They can be more costly, but they make up for it in convenience.

Single-mode MTP Trunk Cable

About MTP Trunks
The MTP Trunk cable is designs for data center applications. This cable is a round cable with the outer diameter of 3,0 mm or 4,5 mm (with two jackets on both sides). The connectors where this cable is terminated on are the so called MTP connector (female).

Conclusion
MTP/MPO technology is used for implementing 40G and 100G Ethernet network. This large number of MTP/MPO connectors can no longer be covered with conventional individual connectors. Fiberstore provides fiber patch cables such as MTP fiber optic connectors, MTP fiber cables, MTP fan out cables, custom multi-fiber cables, single-mode patch cable, MTP/MPO multi-fiber cable, fiber optic pigtails, ribbon fiber optic cables, and more. For more information, please feel free to contact us.

Reference:
http://www.cisco.com/c/en/us/products/collateral/switches/nexus-6000-series-switches/guide_c07-726164.html

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