#mpo breakout cable

[fibermarts]

MPO Trunk Cable-Its Polarity and Types

Today the use of MTP MPO Cables has increased tremendously. MTP trunk cable is often said an enhanced MPO cable version. MTP connector consists of a removable housing that permits polishing, re-working, and changing of connector heads. To make sure that the cable is not easily broken inside the connector housing it has a more advanced mechanical support system.

However, there are many MPO who from the extensive bending force has implemented the same type of mechanical support and provide breaking resistance, but it never guarantees a removable housing.

MPO trunk cable /MTP technology has some properties like high density, flexibility, and reliability with scalable, upgradeable properties. It ensures that to receive the port of the second piece of active equipment, a transmit signal from any type of active equipment will be directed across a fiber network if the right polarity is maintained.

Three Types of Cables for Three Polarization Methods

MPO Trunk Cable Type A: Type A cable also referred to as straight cable consists of a key up MPO connector on one end and the opposite end a key down MPO connector. The same fiber position can be maintained through these fibers at each end of the cable.

MPO Trunk Cable Type B: On both ends of the cable Type B cable make use of a key-up connector. Inversion happens through his type of array mating, which indicates that at each end the fiber positions are reversed.

MPO Trunk Cable Type C: Having one key up and one key down connector on every side, the Type C cable looks similar to Type-A cable. But, in Type C at one end each adjacent pair of fibers are flipped at the other end.

Conclusion

Network designers make use of MPO/ MTP trunk cable components so that they can satisfy the increasing requirement for higher transmission speed. By doing this one of the big issues that are polarity is solved. MTP connector consists of a removable housing that permits polishing, re-working, and changing of connector heads. However, it also needs a selection of the right types of MPO cassette, MPO cables, MPO connectors, and patch cables.

Main souce: https://fibermart.blogspot.com/

[fibermarts]

Everything You Need to Know About MTP/MPO Fiber Cable

Everything You Need to Know About MTP/MPO Fiber Cable

For all networking and device needs like 40G modules and different applications, MPO/MTP fiber cable is specially designed. Around precision molded MT ferrule, it uses a high-density multi-fiber connector system built, which are also available in UPC and APC polish. Both multimode and single-mode applications are supported by it and optional lengths are also available. There are two main MTP/MPO…

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[fibermarts]

Get to Know About MTP/MPO Cables

Get to Know About MTP/MPO Cables

Conventional dual-fiber patch cables like LC cable can no longer meet the demands with the development of ever-greater bandwidths and network connections to deal with in data centers. MTP/MPO cables, to solve this particular problem, arrived in the market. In one multi-fiber MTP/MPO connector, it accommodates more fibers, which is a practical solution for high-density cabling in data…

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[cloriscai-blog1]

Why Short Distance MTP-based Connectivity Utilizes OM3 or OM4 Fibers?

As today's network needs to support more devices and advanced applications than ever before, the amount of data transmitted at the enterprise business level is rapidly climbing. For many data centers, 10G network no long satisfies the need of high speed data transmission. In 2010, the IEEE ratified the 40G ad 100G standard. Then how to realize smooth migration path from 10G to 40G and 100G has become the most concern for data center managers. After some comparison, many data center managers turn to MTP-based connectivity since it can provide fast installation, high density and high performance cabling for data centers. It is not difficult to find that both MTP/MPO trunk cable and MTP/MPO breakout cable (shown as the figure below) used for short distance connectivity utilize OM3 or OM4 fibers. Why short distance MTP-based connectivity utilizes OM3 or OM4 fibers? This article will show you the reason.

Bandwidth

OM3 and OM4 fibers are the only multimode fibers included in the 40/100G standard. Multimode fibers utilize parallel optical transmission instead of serial transmission due to the 850 nm VCSEL (vertical cavity surface emitting laser) modulation limits. And OM3 and OM4 fibers have a minimum 2000 MHz∙km and 4700 MHz∙km effective modal bandwidth (EMB). The minimum EMBc (Effective Modal Bandwidth calculate) method measures the actual fiber bandwidth performance, recognizing the fact that overall system bandwidth is a function of both the bandwidth properties of the fiber and also the particle characteristics of individual laser sources, and this is the most significant factor in determining link performance. In addition, the IEEE model is the industry reference point for calculating the maximum achievable Ethernet link distance and sets out the minimum requirements of components in an optical link. Therefore, knowing the exact minimum bandwidth performance of OM3 and OM4 fibers is a prerequisite to understand the ultimate limitation of MTP-based connectivity, which can ensure the optical infrastructure deployed in the data center will meet the performance criteria set forth by IEEE for bandwidth.

Insertion Loss

No matter what kind of cabling system you are going to deploy, insertion loss is inevitable and it is an essential performance parameter of the network deployment. It is important to note that the total connectivity loss within a cabling system has an effect on the network performance over the maximum link distance at a given data transmission rate. It is not difficult to understand that the higher the total connectivity loss, the shorter the maximum link distance. As a result, the insertion loss specifications of components used for connectivity should be evaluated at first when designing data center cabling infrastructures. The 40G standard specifies that with link distance up to 100 meters, the maximum channel loss of OM3 fiber is 1.9 dB, which includes a 1.5 dB total connectivity loss budget; while for OM4 fiber, it is specified that with link distance up to 150 meters, the maximum channel loss is 1.5 dB, which includes a 1.0 dB total connectivity loss budget. And the maximum attenuation of fiber optic cable at 850 nm is 3.5 dB/km. With low-loss OM3 and OM4 fibers, maximum flexibility can be achieved with the ability to utilize MTP connector in the optical link.

Conclusion

With 850nm EMB of 2000 MHz∙km and 4700 MHz∙km, OM3 and OM4 fibers can provide the bandwidth which is needed in MTP-based connectivity for 40G network. Besides, low-loss within cabling system is another characteristic of OM3 and OM4 fibers, which can ensure the high performance of the network deployment. Therefore, utilizing OM3 and OM4 fibers makes short distance MTP-based connectivity an ideal solution for migration from 10G to 40G in data centers.

Orginally published at: http://www.china-cable-suppliers.com/why-short-distance-mtp-based-connectivity-utilizes-om3-or-om4-fibers.html

[cloriscai-blog1]

Talk About Base-8 Connectivity and Base-12 Connectivity

The technology behind data center switches, servers and transceivers is changing quickly to accommodate the ever-increasing adoption of cloud computing, along with a growing demand for high-bandwidth applications. As 40G network has been utilized by many data centers, two types of cabling solutions are popular among data center managers—Base-8 connectivity and Base-12 connectivity. How much do you know about these two cabling solutions? This article aims to talk about Base-8 connectivity and Base-12 connectivity for network applications in detail.

Base-8 Connectivity

Base-8 connectivity builds optical links on increments of the number “eight”. In Base-8 connectivity, 8-fiber MTP trunk cable, 24-fiber or 32-fiber MTP trunk cable can be used to transmit data. Base-8 connectivity provides the most future-ready solution to support high data rate transmission requirements, and the benefits are clear. It allows for 100% fiber utilization for 4-channel (SR4, PSM4, etc.) and 8-channel (SR8, LR8) applications. In addition, it eliminates conversion modules which can reduce link attenuation by 50% and enables longer parallel link distances. Base-8 connectivity will be the cleanest path from 10G to 40G and beyond regardless of protocol.

Application of Base-8 Connectivity

Many data centers are in the process of 10G to 40G migration, and Base-8 connectivity can provide a simple and reliable solution—using the MTP/MPO breakout cable. As shown in the following picture, one 40GBASE-SR4 QSFP+ transceiver is plugged in the QSFP+ interface on the 40G switch on one side, while four 10GBASE-SR SFP+ transceivers are plugged in the SFP+ interfaces on the 10G switch on the other side. Then the MTP to LC breakout cable connects the 40GBASE-SR4 QSFP+ transceiver with the four 10GBASE-SR SFP+ transceivers. Finally, the data can be transmitted from 10G switch to 40G switch through the MTP to LC breakout cable smoothly.

Base-12 Connectivity

Base-12 connectivity makes use of fiber optical links based on increments of 12 fibers. And 12-fiber or 24-fiber MTP connector assemblies are usually used to accomplish the links, such as 12-fiber or 24-fiber MTP trunk cable. When using Base-12 connectivity, a larger number of fibers can be installed quickly because the 12-fiber or 24-fiber MTP connector can provide higher fiber cabling density. However, in Base-12 connectivity, four fibers for transmit and four fibers for receive, leaving four fibers unused per connection. In spite of this, Base-12 connectivity in some cases may still be more cost-effective which can meet the newer 40G/100G standard format.

Application of Base-12 Connectivity

For 40G network, 12-fiber MTP trunk cable can provide the simplest way. As shown in the following picture, two 40GBASE-SR4 QSFP+ transceivers are separately plugged in the QSFP+ interface on the 40G switch on each side. Then the 12-fiber MTP trunk cable connects the two 40GBASE-SR4 QSFP+ transceivers. Finally, the 40G optical link is accomplished.

Conclusion

Both Base-8 connectivity and Base-12 connectivity have their own benefits. Though Base-8 can realize 100% fiber utilization in cabling system, it is not an universal solution. While Base-12 connectivity in some cases may still be more cost-effective. As for which one to choose, it depends on the requirements of the network deployment. I hope this article can help you have a better understanding of this two cabling solutions.

Originally published at http://www.china-cable-suppliers.com/talk-about-base-8-connectivity-and-base-12-connectivity.html