#mtp harness cable

[shiningtur-blog]

In order to meet the requirements of using myriad fibers simultaneously and save much space in high-density network environment, fiber optic cables evolved gradually into MTP/MPO cable from LC cable, MTRJ cable, LSH cable and MU cable. Besides, MTP/MPO fiber optic cables have developed as an optimum solution for fiber migration to 40G and 100G. This article will keep you informed of the main points of MTP/MPO optical cables.

What Is MTP/MPO Fiber Optic Cable

Like the configuration of other fiber optic cables, MTP/MPO optical cables are also composed of connectors and fiber optic cable. As is shown below, a MTP/MPO fiber optic cable enables the synchronous use of 8 fibers, 12 fibers, 24 fibers and even 144 fibers, among which 8 fibers is the most common one. However, the traditional optical cable can only contain one or two fibers in every single fiber cable. What distinguishes MTP/MPO optical cables from other fiber optic cables lies in its special connector which will be explained in the following part.

MTP/MPO Optical Cable

Traditional Optical Cable

MTP/MPO Connector

MTP is a registered trademark of US Conec, which is an improved version of MPO. MTP/MPO connectors are divided into male version (with pins) and female version (without pins). The pins align the fronts of the connectors, and also the head faces of the fibers to mate two MTP/MPO connectors. The key ensures an adapter hold the connector with the correct ends aligned with each other. “Key up”means the key is up on one side and down on the other while “key down” is just the opposite. The picture below will give you a direct-viewing experience.

Apart from what is mentioned above, there are three types of MTP/MPO connector strands: 8 strands, 12 strands and 24 strands, among which 12 strands is more commonly-used. Different strands and key directions are relevant to the polarity of MTP/MPO optical cables, including type A, type B and type C.

Types of MTP/MPO Fiber Optic Cable

According to specific application, MTP/MPO cable can be divided into trunk cable (without branches) and harness cable (with branches).

MTP/MPO Trunk Cable

MTP/MPO trunk cable is a cable with two MPO or MTP connectors at both ends, serving as a permanent link to connect modules together. MTP/MPO trunk cables are available with 12, 24, 48 and 72 fibers, with a number of advantages, such as higher quality, minimal skew, shorter installation time, smaller volume of cable, lower cost, etc. MTP/MPO trunk cable is widely-used in data center, infrastructures and backbone applications where cable distances are reasonably predictable and easily determined.

OM3 Single Mode Optical Cable OM4

MTP/MPO Harness Cable

MTP/MPO harness cable, also known as MTP/MPO breakout cable or fan-out cable, is a fiber optic cable terminated with an MTP/MPO connector on one end and discrete LC/SC/FC/MTRJ (generally MTP to LC) connectors on the other end. MTP/MPO harness cable is usually applied in 40G to 10G transmission and 100G to 25G transmission and used to connect devices within one rack for short distances links.

OM3 Single Mode Optical Cable OM4

Conclusion

In this day and age, there is an increasing requirement for networking, which will become an exploding demand with the advent of 5G era. Apparently, the traditional fiber optic cables can hardly satisfy the high requirements. In contrast, MTP/MPO optical cables are much better. And many companies have been improving their MTP/MPO optical cables to cater to users. For example, FS.COM has developed MTP conversion cables and also provided customized MTP/MPO fiber cables to meet various users’ particular requirements.

[monicaliuliublog]

12 Fibers Single-Mode 12 Strands MTP Harness Cable 3.0mm LSZH/Riser

MTP is the high dense degree of optical fiber pre-connect system,which is generally use in three areas,The data centra application with high dense degree environment,The optical fiber to the building,The internal connector application in fiber equipment such as Splitter, 40G /100G SFP and SFP+

[serenityhuang343-blog]

MTP Specifications and Deployment for 40GBASE-PLRL4 QSFP+

Commonly, QSFP+ transceiver designed with LC interface works with single-mode fiber for long distance application, while QSFP+ transceiver with MTP/MPO interface is used over multimode fiber for short distance transmission. For instance, 40GBASE-ER4 QSFP+ is designed with LC duplex interface, and it supports maximum transmission length of 40 km over single-mode LC duplex fiber; 40GBASE-SR4 QSFP+ with MTP/MPO interface supports a transmission distance no more than 150m over multimode fiber. However, in order to meet user’s diverse needs in real applications, some 40G transceivers are designed not following this rule, like 40GBASE-PLRL4 (parallel LR4 Lite). This transceiver is with MTP/MPO interface design but is used over single-mode fiber for long distance transmission. This article will introduce the MTP/MPO specifications for this transceiver and its deployment cases.

MTP Specifications for 40GBASE-PLRL4 QSFP+

QSFP-40G-PLRL4 transceiver uses MTP-12 interface to achieve parallel transmission, supporting maximum data links up to 1.4 km. The cable type required for 40GBASE-PLRL4 is an APC (angle polished connector) single-mode MTP-12 cable. The cable is similar to the 40G-SR MTP or MPO, with the only change being the use of single-mode fiber. UPC (ultra polished connector) is another type of connector for MTP-12 cables, but it is not suited for single-mode fiber in market. APC is the only available type for single-mode MTP-12 fiber. The MTP-12 connector plugged into the QSFP-40G-PLRL4 transceiver carries the 40G signal over only 8 of the 12 fibers, remaining four fibers unused, and these four can optionally be not presented in the cable for economic reason. The used 8 fibers are mapped as 4x10G Tx and Rx pairs. In addition, the MTP cables connected to QSFP-40G-PLRL4 transceiver can be either MTP trunk cables or MTP splitter cables.

Deployment of 40GBASE-PLRL4 QSFP+

The QSFP-40G-PLRL4 is optimized to guarantee interoperability with any IEEE 40GBASE-LR4 and 10GBASE-LR. So when the link for 40G network and 10G to 40G migration is less than 1.4 km, it will be very appropriate to use 40GBASE-PLRL4 QSFP+ transceiver with single-mode MTP cables.

In the first case, you can choose a MTP trunk cable together with the 40GBASE-PLRL4 QSFP+ module for direct 40G connection. The following picture shows two 40GBASE-PLRL4 QSFP+ transceivers connected by a single-mode 12-fiber MTP trunk cable.

In the second case, you can simply use an 8-fiber MTP to 4xLC duplex harness cablewith one 40GBASE-PLRL4 QSFP+ and four 10GBASE-LR SFP+ to achieve 10G to 40G.

You can see in the above two cases, MTP cable plays an important role and due to the special requirements of 40GBASE-PLRL4 for single-mode MTP APC fiber, it is necessary to choose the right MTP products connected to this 40G QSFP+.

Conclusion

40GBASE-PLRL4 QSFP+ module has special interface design which can be only compatible with single-mode MTP connector. During the deployment of 40GBASE-PLRL4 QSFP+ module, selecting proper MTP assemblies are essential to successfully accomplish the link. FS.COM is a professional fiber optic transceiver vendor and MTP product manufacturer, supplying compatible 40GBASE-PLRL4 QSFP+ transceiver of different brands, such as Cisco, Arista, Brocade, Huawei, etc. Also other customized compatible brands are available for your requirements. MTP cables and assemblies are available for same-day shipping at low prices. You will be surprised to see how many kinds of network devices FS.COM can offer and you will get more than cost-effective products but also impressive service.

Originally posted on: https://goo.gl/70Q5fl

[serenityhuang343-blog]

MTP-8: Simplest Way to Get 40G Connection

As data centers networks are shifting from 10G to 40G and beyond, it is necessary to seek ideal ways to connect 40G high speed switches populated with higher rate transceivers QSFP+, and to connect 40G switch to existing 10G elements populated with SFP+ modules. There are different approaches to connect 40G switches, or to connect 40G switch to 10G switch. However, by using MTP-8 solution, the simplest way to achieve direct 40G connectivity has been proved feasible and favorable in real applications. This article will introduce the deployment of MTP trunk cable in 40G to 40G connection, and MTP harness cable in 10G to 40G connection.

Basis of MTP Trunk and Harness Cable

MTP trunk cable has MTP connectors terminated on both ends of the fiber optic cable. It is often used to connect MTP port modules for high density backbone cabling in data centers and other high dense degree environments. Currently, most of the MTP trunk cables for high data rate like 40G and 100G are still 12-fiber or 24-fiber. MTP harness cable, also called MTP breakout or fan-out cable, has MTP connectors on one end and discrete connectors (duplex LC, SC, etc.) on the other end. The most common configurations of MTP-LC harness cables are 8-fiber MTP to 4 LC duplex, 12-fiber MTP to 6 LC duplex and 24-fiber MTP to 12 LC duplex. A single MTP connector is able to terminate the combination of 4, 8, 12, 24, 48 fiber ribbon cables. The multi-fiber design provides quick deployment and scalable solution that improves reliability and reduces installation or reconfiguration time and cost.

10G to 40G Connection via MTP Harness Cable

In order easily and quickly finish the migration from 10G network to 40G network, you can use 8-fiber MTP to 4 LC duplex harness cable, 40GBASE-SR4 QSFP+ and 10GBASE-SR SFP+ modules. The configuration of such a link is illustrated by figure 1. On the left the 8-fiber MTP connector is plugged into the MTP port of the 40GBASE-SR4 QSFP+ transceiver installed on the 40G switch; on the right side four duplex LC connectors are plugged into the ports of four 10GBASE-SR SFP+ transceivers installed on the 10G switch. In 10G to 40G migration, using 8-fiber MTP to LC harness cable can ensure every strand of fiber be used, and no one wasted.

Figure 1: 10G to 40G Migration via MTP-LC Harness Cable

40G to 40G Connection via MTP Trunk Cable

To support your 40G networking needs, you can simply use 12-fiber MTP trunk cable and 40GBASE-SR4 QSFP+ transceiver to accomplish a quick connection for two 40G switches in your network. The following figure shows a concrete example which uses one 12-fiber MTP trunk cable and two 40GBASE-SR4 QSFP+ transceivers to connect two 40G switches. Though the MTP trunk cable in this case is base-12, the fiber count actually in use is eight, leaving four strands unused. That is to say delivering 40G over 4 lanes multimode fiber at 10 Gb/s per lane. Totally only eight fibers (4 transmit, 4 receive) are required for the 4x10G solution. It is the same as the 4x25G solution for 100G.

Figure 2: 40G to 40G Connection via MTP Trunk Cable

The above two examples are both applications of MTP-8 solution in 40G connectivity. You will find that only a few components are needed in the whole installation, and the link will be very easy and flexible, as well as cost-effective.

Conclusion

Current 40G connectivity can be obtained by MTP-8 solution. Though present market is still popular with 12-fiber or 24-fiber MTP, 8-fiber MTP solutions that are starting to hit the market are considered the most efficient option since they support current and future duplex fiber applications (such as 200G and 400G) and using modules that break out 8-fiber MTPs to duplex LCs, as well as current and future 8-fiber applications without the need for conversion cords or modules.

Source: https://goo.gl/SEg4ow

[cloriscai-blog1]

MTP Cabling: 12-Fiber or 24-Fiber?

With the rapid development of network technology, migration to ever higher speed data transmission networks becomes the trend. As 10G Ethernet is commonly used in larger enterprises, migration from 10G to 40G to 100G is underway to meet the demands for higher bandwidth. Has your network cabling been optimized for this inevitable growth? It is essential to create a simple, cost-effective migration to support the needs of 40G/100G Ethernet network. MTP cabling is a good solution for both 40G and 100G network migration. This article will focus on the difference between 12-fiber and 24-fiber MTP cabling from three aspects—migration, cost and density.

Migration

Trunks, harnesses, patch cords, modules and adapter plates are the necessary components used in the network. The following diagrams show the 12- and 24-fiber system configurations from 1G to 100G networks.

Figure 1. shows 12-Fiber MTP cabling for 40G. In this type of cabling system, one 12-fiber MTP trunk cable, two 12-fiber MTP-LC modules and two LC duplex patch cords are needed.

Figure 1.—1/10G Channel 12-Fiber Legacy Configuration

Figure 2. shows two options for 12-Fiber MTP cabling for 40G. In this type of cabling system, a second MTP trunk cable and another set of array harnesses will be needed to achieve 100% fiber utilization.

Figure 2.—40G Channel 12-Fiber Legacy Configurations

Figure 3. shows 12-fiber MTP cabling for 100G. In this type of cabling system, for 100G, some additional components will be required for any 12-fiber legacy configuration, like MTP adapter plate and MTP harness cable.

Figure 3.—100G Channel 12-Fiber Legacy Configuration

With the use of 24-fiber MTP trunk cable, a single cable can support a 1G-100G channel and will simplify network upgrades immensely. 1G and 10G networks will link the MTP trunk cables to active equipment with MTP-LC modules and LC duplex patch cords. When equipment is upgraded, modules and patch cords are exchanged for the appropriate new MTP components, with no need to install new trunks. In addition, limiting changes reduce the inherent risks to network security and integrity whenever MAC work is completed. The following three figures separately show 24-fiber MTP cabling for 10G, 24-fiber MTP cabling for 40G and 24-fiber MTP cabling for 100G.

1/10G Channel 24-Fiber Configuration

40G Channel 24-Fiber Configurations

100G Channel 24-Fiber Configuration

Cost

12-fiber configuration may allow you to continue to use existing MTP trunk cables when upgrading your equipment (if you already have 12-fiber MTP/MPO trunk cables), but it will be likely to require additional MTP trunk cables, more connectivity components, and other network modifications. In the long run, it is much more expensive to retain these MTP trunk cables than to upgrade to 24-fiber up front.

Density

High speed data transmission needs high density cabling in data center. Many data center managers prefer network components which can realize both high density connectivity and smaller occupation space in the enclosure which can leave more rack space for active equipment and reduce the total amount of floor space required. 24-fiber cabling has the obvious advantage. If the active equipment is configured for 24-fiber channel/lane assignments, enclosures can have twice as many connections with the same number of ports compared to 12-fiber (or the same number of connections using only half the ports).

The flip side of density is congestion. The more connectivity you are able to run in the same footprint, the more crowded it can become at the rack or cabinet. Here again, 24-fiber MTP trunk cable offers a huge benefit. Anywhere there is fiber, from within the enclosures to cable runs that connect different areas of the network, you will have just half the number of cables versus 12-fiber. Runs carry a lighter load, fibers are easier to manage, and improved airflow saves cooling costs.

Conclusion

Fewer connectivity components to be replaced or added simplifies migration and saves costs for both components and installation. Higher-density connectivity leaves more rack space for active equipment. And fewer MTP trunk cables reduce cable congestion throughout the data center. In a word, the 24-fiber MTP cabling will future-proof your network, lower your cost and maximize your return on investment.

[serenityhuang343-blog]

40GBASE-SR4/CSR4 QSFP+ Transceiver Direct Connection Cabling

As we all know, the standard specifies MPO as a connector to the 40GBASE-SR4/CSR4 QSFP+ transceiver. To connect a QSFP+ to QSFP+, we usually use a MTP 12-fiber trunk cable. In the 40GBASE-SR transmission, there are eight fibers associated with the channel—four fibers for the TX signal and four fibers for the RX signal. Therefore only 8 of the 12 fibers are used, where the remaining four are not used, and can optionally be not present in the cable. So we can also choose a MTP 8-fiber trunk cable for connectivity. This article explains 40GBASE-SR4/CSR4 QSFP+ to 40GBASE-SR4/CSR4 QSFP+ cabling selections.

How to Choose Right MTP Trunk Cables?

In addition to using a MTP 8-fiber trunk cable or MTP 12-fiber trunk cable, there are a number of other factors also needed to be considered when to choose a right MTP trunk cable for 40GBASE-SR4/CSR4 QSFP+ connectivity.

Use single-mode or multimode MTP trunk cable?

In the market, both single-mode and multiode MTP trunk cable are available. Which one should I use? According to 40GBASE-SR4 standards, 40GBASE-SR4 QSFP+ transceiver supports link lengths of 100 meters and 150 meters, respectively, on laser-optimized OM3 and OM4 multimode fibers. Therefore, to connect a 40GBASE-SR4 QSFP+ to 40GBASE-SR4 QSFP+, we should choose OM3 or OM4 multimode MTP trunk cables.

MTP trunk cable polarity selection: A, B or C?

In terms of MTP trunk cable, there are three kinds of polarity options (A, B and C). Which one to choose? In fact, according to the IEEE 40GBASE-SR4 specifications, we must select a type B MTP 8-fiber or MTP 12-fiber trunk cable. The type B trunk cable has opposing connectors with both keys oriented facing up, however the fiber positions are reversed at each end i.e. the fiber at position 1 at one end is connected to position 12 in the connector at the opposing end.

Choose male or female MTP trunk cable?

In terms of a MPO connector, it is divided into male and female types. They ensure that the adapter holds the connector with the correct ends aligned with each other. A MPO trunk cable usually has two MPO connector on each side. Therefore, MTP trunk cables are available in male–male and female–female two versions. According to IEEE standards, MPO optics in a 40GBASE-SR4 transceiver are always male connectors, and therefore will always accept female MPO connectors. So if we want to connect a 40GBASE-SR4 QSFP+ to a 40GBASE-SR4 QSFP+ successfully, we must choose a female–female MTP trunk cable.

40GBASE-SR4/CSR4 QSFP+ to 40GBASE-SR4/CSR4 QSFP+ Cabling Selections

In order to satisfy different cabling requirement, we may choose different cabling methods. And different cabling methods call for many different cabling infrastructure. Following are four type common cabling methods to connect a 40GBASE-SR4/CSR4 QSFP+ to 40GBASE-SR4/CSR4 QSFP+.

Direct connection for 40 Gigabit Ethernet parallel optic transceiver

When directly connecting one QSFP+ MPO/MTP interface transceiver to another, a Type-B female MPO/MTP to female MPO/MTP cable is required. This type of direct connectivity is only suggested for short distances within a given row of racks/cabinets. Following picture shows two QSFP+ transceivers being connected with a MTP female cable.

40GbE direct interconnect with MTP trunk cable and patch panel

For distances less than 400 meters, the use of FS MPO/MTP multi-mode fiber cabling is generally the preferred cabling method. The next solution is similar to the previous, but instead of using a 12-fiber jumper directly, the MPO/MTP adapter panel is interconnected. Following picture shows the distribution switch and FS optics and cabling options with corresponding item details for a QSFP+ to QSFP+ multi-mode interconnection.

10Gig migrate to 40GbE by interconnecting MTP LGX cassette and MTP trunk cable

Following picture shows one link with a breakout of the QSFP+ with the use of an MPO/MTP LGX cassette to four 10G SFP+ links. A Type-B female MPO/MTP to Female MPO/MTP assembly is used between the MPO/MTP LGX cassette and 40GbE transceiver. The connections to the SFP+ transceivers is accomplished with OM3/OM4 Uniboot LC duplex fiber patch cables.

10Gig migrate to 40GbE by interconnecting MTP harness cable and MTP trunk cable

Sometimes, create a simple, cost-effective migration path by installing a structured cabling system that can support your future 40GbE networking needs. Following picture uses the 8-fiber harness as shown in the diagram to connect to 10G SFP+s. This approach allows for an easy upgrade path moving from 10Gig to 40GbE connectivity.

Fiberstore provides wide brand compatible 40GBASE-SR4 QSFP+ transceivers and all kinds of MTP cables. Each fiber optic transceiver has been tested to ensure its compatibility and interoperability. Please rest assured to buy. For more information or quotation, please contact us via [email protected].

Source: http://www.cables-solutions.com/…