• IEEE 802.3af PoE delivered over any of the forty-eight 10/100/1000 ports


• Dual images for resilient firmware upgrades


• 96 Gbps nonblocking, store-and-forward switching capacity


• Fully resilient stacking provides optimized growth with simplified management


• ACLs for granular security and QoS implementation


• Configuration and monitoring from a standard web browser

Oznake: 48 port PoE switch, 48 port gigabit switch poe, 48 port poe

To meet surging market needs for fiber optic cable product, more and more fiber optic cable manufacturers emerges to gain its market share. Fiber optic cable is a necessity for most households. How to keep a balance between price and quality? And how to select a reliable fiber optic cable manufacturer? As the representatives of reputable fiber optic cable manufacturers, Monoprice, C2G and FS.COM are frequently recommended by many users. This article would give a brief introduction to those three companies and analyze the difference between their fiber optic cable.

Five years ago, Monoprice was associated with two things: HDMI cables and nerds. Being able to tell people about two-buck Monoprice cables, and to explain, with confidence, why Monster cables were a scam, was one of the wonderful small privileges of geekdom; today, it's one of the dwindling few. Its cables were cheap! They worked fine! The company was based in the U.S., processed orders quickly, had a return policy and answered emails. It was like eBay without the risk.

Founded in 2002 and propelled by word-of-mouth support — the company rarely advertises — Monoprice is now a $120m-a-year business. Monoprice CEO Ajay Kumar says the company has been growing at between 25% and 35% a year for the last five years. The office and shipping operations run out of a 173,000 square-foot warehouse in Rancho Cucamonga, California. Kumar credits Monoprice's early rise to one thing. "The primary focus early on was cables," he says, "and the thing that really accelerated the company was HDMI." For the fiber optic cables, they offer a wide range of them, singlemode, multimode and etc.

C2G (formerly Cables To Go), a division of Lastar, Inc., is an industry leader in high performance cabling and connectivity solutions. Founded in 1984, the company provides end-to-end connectivity solutions serving a variety of markets—including hospitality, education, healthcare, corporate, home theater and digital signage. C2G also delivers customized connectivity products and solutions renowned for superior quality, value, and innovation using premium components and the latest technologies to maximize cable performance and ensure compliance with industry specifications for each cable and its designated application. Fiber optic cabling and hardware products including single mode and multimode fiber patch cables of 62.5/125, 50/125, and 9/125, and fiber distribution products used in high tech networking.

Founded in 2009, FS.COM gradually becomes a leading company devoting to research & development, and offer fiber connectivity network solutions for carriers, ISPs, content providers and networks. With a few years of development and accumulation, FS.COM have owned a whole series of optical communication products including the WDM equipment, transceivers, fiber optic assemblies, racks & enclosures, bulk fiber cables, enterprise network and so on.

Their fiber optic cable products are offered at the lowest price and fully compatible with the original devices. They assured to every customers that every fiber optic cable offered by FS.COM before shipping has to go through strict test to assure high performance. They cover a wide range of fiber optic cables, such as bulk fiber cables, fiber patch cables, MTP/MPO fiber cable, fiber cable assemblies and etc.

Price is paramount for every customers when they are purchasing. We can’t list all the products from their website and compare them here. So let’s take the 1m OS2 9/125 singlemode fiber optic cable as an example, the C2G 1m OS2 9/125 singlemode fiber optic cable is sold at $42.99. Monoprice is only $11.35. The price of 1m OS2 9/125 singlemode fiber optic cable from FS.COM is $2.8. You can check it on the below table.

Both FS.COM and C2G offer a full range of fiber optic cable that are of performance. While monoprice, nowadays do not have many selections of optical modules. But if you need HDMI, video or power cables, you can definitely have a look at their website.

FS.COM is known as the cost-effective optical transceiver and fiber optic cable manufacturer that offer high-quality and low price products. Monoprice is mostly recommended for its HDMI, video and power cables. C2G’s price is a little bit higher, but their quality is nice.

Oznake: fiber optic cable manufacturer, fiber optic cable

Multimode fiber has been highly favored by Ethernet users and gained the widest acceptance in network backbones where it has offered users the opportunity to extend link distances, increase network reliability, and lower costs by centralizing electronics. OM3 fiber emerges just at the right time. The predominance of OM3 fiber is that utilizes laser-optimized fiber, which is the highest-capacity medium for short-wave 10G optical transmission. OM4 fiber just joined multimode fiber family after OM3 fiber in order to meet the requirement of longer range applications. This passage would give a brief introduction to OM3 and OM4 fiber, give a further analysis on their differences and selection guide, as well as list their applications.

Both OM3 and OM4 fiber meet the ISO 11801 standard. The standard specifies that OM3 fibers are capable of 10 Gb/s performance over distances of up to 300m. Like being mentioned, the laser optimized 50/125 mm multimode OM3 fiber is of predominance, which provides sufficient bandwidth to support 10 GbE and beyond with cable lengths up to 550 meters. OM4 fiber is a further improvement to OM3 fiber. It also uses a 50µm core but it supports 10 Gigabit Ethernet at lengths up 550 meters and it supports 100 Gigabit Ethernet at lengths up to 150 meters.

Attenuation is caused by losses in light through the passive components, such as cables, cable splices, and connectors. Attenuation is the reduction in power of the light signal as it is transmitted (dB). The maximum attenuation of OM3 and OM4 fiber allowed at 850nm: OM3<3.5 dB/Km; OM4 <3.0 dB/Km. So it is obvious that OM4 fiber causes lower losses due to different construction.

As is known to most people, modal dispersion attaches great importance to bandwidth. The lower the modal dispersion, the higher the modal bandwidth and the greater the amount of information that can be transmitted. The minimum OM3 and OM4 fiber cable bandwidth at 850nm: OM3 2000 MHz·km; OM4 4700 MHz· km. The higher bandwidth available in OM4 means a smaller modal dispersion and thus allows the cable links to be longer or allows for higher losses through more mated connectors.

The maximum transmission distance of OM4 fiber is 400-550m (depending on module capability) while OM3 fiber can only be up to 300m. And thus, OM4 can tolerate a higher level of loss at distances between 200-300m as it is designed to operate at longer distances than OM3 fiber. It may be a more flexible option for network managers to install OM4 fiber within these instances. You can check difference between OM3 and OM4 in transmission distance in the following table.

In comparison to OM3 fiber, the cost for OM4 is higher due to the manufacture process and market fluctuations. In a large extent, cost depends on the construction type of the cable (loose tube, tight buffered, etc.). OM4 fiber cable is about twice as expensive as OM3 fiber cable. This means that the cost difference of lots of fiber products such as standard fiber patch panels, MTP cassette modules, fiber patch cords is very small (as the volume of cable is small).

Fifty micron OM3 fiber is designed to accommodate 10 Gigabit Ethernet up to 300 meters, and OM4 can accommodate it up to 550 meters. Therefore, many users are now choosing OM3 and OM4 over the other glass types. In fact, nearly 80% of 50 micron fiber sold is OM3 or OM4. If you require higher data rates or plan on upgrading your network in the near future, laser optimized 50 micron (OM3 or OM4) would be the logical choice. Compared to OM4, OM3 fiber is more future proofing for most applications, which allows speeds of 10 GB/s up to 100 GB/s. OM4 fiber provides users a transmission solution over longer distances and leaves more wiggle room in optical budgets.

OM3 and OM4 fiber cables are typically used in data center structured cabling environments running high speeds of 10G or even 40 or 100 Gigabit Ethernet, SAN (Storage Area Networking), Fiber Channel, FCOE (Fiber Channel Over Ethernet) with such manufacturers as Cisco, Brocade, EMC and others. Typical applications could be virtualized or internal cloud core data center applications. For 40G and 100G fiber cable applications, MTP/MPO cable would also be a great choice. MTP cabling assemblies (MTP/MPO trunk cable, MTP/MPO harness cable, MTP/MPO conversion cable, etc), with their overwhelming advantages, providing a fast, simple and economical upgrade path from 10 Gigabit to 40 or 100 Gigabit applications.

In this article, we mainly discussed OM3 fiber, OM4 fiber, their main differences, transmission guide and applications for 10G/40G/100G network. We put emphasis on OM3 and OM4 fiber 10G/40G/100G transmission distance and selection guide. OM3 and OM4 multimode fiber provide a cost effective solution for inside buildings or corporate campuses. Hope this article would be helpful for you to understand OM3 and OM4 fiber and to select right fiber cable for yourself.

Oznake: OM3 Fiber, OM4 Fiber, multimode fiber

As a worldwide leader in IT and fiber optical networking, Cisco switches play a leading role in manufacturing network switches and in providing switching solutions for data center and enterprise networks with large and medium-size forms. MikroTik, a Latvian company which was founded in 1996 to develop routers and wireless ISP systems. Their cloud switches are highly favored by many Ethernet users in recent years. And thus, people are entangled with Cisco and Mikrotik switches. This article would give brief introduction to Cisco and Mikrotik switches, and put emphasis on Mikrotik Switches Vs Cisco Switches.

According to different usage, Cisco divided their switches into the following categories: LAN Access Switches, LAN Digital Building Switches, LAN Core and Distribution Switches, Data Center Switches, Service Provider Switches, Industrial Ethernet Switches, Virtual Networking and Small Business Switches. And every category has its switching series. The Cisco Catalyst series switch delivers ease of management and configuration for small to medium-sized enterprise wiring closets in a single system, without the need for additional modules. The following list is about the Cisco Catalyst series switch.

Comparing to Cisco switches, the total amount of Mikrotik switches is much smaller. According to the official website of Mikrotik, there are only twelve Mikrotik switches. Ethernet smart switches and cloud core router switches are two series switches of Mikrotik switches. The cloud core switch, or cloud router switch, abbreviated as CRS, is a highly configurable switch, powered by RouterOS. They are the new products of Mokrotik switches. For the cloud router switch, there are nine models currently available. Here lists three different cases of the cloud core switch:

• CRS125-24G-1S-2HnD-IN (integrated wireless, indoor case)


• CRS125-24G-1S-IN (indoor case)


• CRS125-24G-1S-RM (rackmount case)

The CPU on both Cisco and Mikrotik switches is used for management purposes (snmp stats, cli management, etc) and it does not affect the data path. Switching is not done in CPU, neither on Cisco nor on Mikrotik. Switching is done on dedicated ASIC chips specifically designed for this job (thus giving wirespeed). So comparing the CPUs won't mean much about forwarding performance - which is the metric you should care about.

One of big problems with Mikrotik switches is their power. The buyers would prefer to pay another couple hundred dollars to have dual power supplies that are removable. And thus, many Ethernet users cannot use Mikrotik in these cases. Comparing to Mikrotik switches, Cisco switches have less power consumption by their advanced technology.

When configuring your existing network monitor system(s), your network monitor system(s) may not even know what a Mikrotik is and probably does not have native built-in MIBs/OIDs used by SNMP to auto-check/monitor a network. Thus, an administrator would probably need to configure the Mikrotik graphic icons and configure all of the SNMP checks for MIBs/OIDs from/to a Mikrotik.

Mikrotik routers and switches are great. Most people like them and use them almost everywhere. However, because Mikrotik is still the new kid on the block when it comes to carrier-grade commercial-grade business grade high-throughput products, it may sometimes be a little difficult to find local network technicians or local phone support for Mikrotik products when adding new equipment into your network. So Cisco switch is more solid and people are more satisfied with them.

Oznake: network switch, core switch, ethernet switches

25G Ethernet and 40G Ethernet are two “transiting” approaches for upgrading network from 10G to 100G. Some analysts believe 25G could be the second highest Ethernet server connectivity technology sold and shipped in the next five years, behind 10G. Meanwhile, a number of comments from industry experts declaring that 40G Ethernet is dead. Is that true? And how to make a right decision? This passage would give a brief introduction on 25G switch and 40G switch and put emphasis on 25G switch Vs. 40G switch.

25G technology is the new standard that offer significant density, cost and power benefits for server to top of rack connections. Its single higher speed 25 Gb/s lanes maximize bandwidth and switch fabric utilization. A single lane per physical port maximizes the number of connected servers or uplinks per switch. Generally, 25G switch is a 48 port switch on the 25G switch market right now. Nowadays, many major brands of switch manufactures have launched their 25G switch, such as Cisco, Juniper, Arista, Mellanox, Dell.

Comparing with 25G switch, 40G switch is much familiar to us. A 40G switch generally refers to the data speeds of the ports feeding into the switch. Hence, a 40G switch has 40 Gb/s ports. The overall switching capacity of the 40G switch will be much higher depending on the total number of ports and the power of the switching fabric itself. According to Infonetics Research in early 2015, 40G switch has been popular in the data center market while 100G switch is more popular with service providers. And thus, 40G Ethernet and 40G switch are not so dead like being mentioned in the fast paragraph.

Relatively speaking, 25G switch is less common on the market. In terms of 25G switch compatibility, that is depending the switch supplier. Just take Arista 25G switch for an example, the majority of their 25G switches and Network Interface cards offer backward compatibility to 10G, there is the flexibility to manage a gradual migration to higher speed servers and mix and match port speeds. All SFP based 25G ports on Arista switches and 25G NICs from Cavium can be used at 10G speed. The compatibility of 40G switch also depends on the switch brands. But as a new emerging technology, 25G switch has higher compatibility than 40G switch.

High performance 25GbE chips use single-lane 25G serializer-deserializer (Serdes) technology similar in operation to 10GbE but delivering 2.5 times the performance, thus reducing the power and cost per gigabit significantly. 25G provides higher port and system density than a comparable 40G solution. Both power savings and higher density results in lower cooling requirements and operational expenditure for data center operators.

Switch-to-server or switch-to-switch (or switch-to-blade switch) are two connection options for 25G switch connection. Right now, network vendors are positioning 25G only for switch-to-server. Until now, no network vendor advertising 25G for switch-to-switch—Cisco doesn’t even offer a 25G fiber transceiver, and HPE has priced theirs higher than 40G and 100G transceivers. In other words, no one is talking about 25G for switch-to-switch links right now. We shall see this in 2018.

25G twinax works best within a single rack with a top-of-rack switch and 1 and 2 meter cables. 25G with 3+ meter cables requires forward error correction (FEC), which adds ~250ns of one-way latency and may introduce vendor interop issues. If you’re adopting 25G, plan to densely pack compute into 10kVA–12kVA racks. 40G DAC cable is more expensive than 25G DAC cable based on the identical cable length.

Through the above description and comparison, we are cleared about some pros and cons of 25Gb Ethernet switch and 40Gb Ethernet switch as well as their main differences. As for how to choose the best one, that depends on your demand and usage environment. 25G switch uses less power and produce less heat than 40G, but it is limited at 25G distance. For data center network connectivity, 100G switch is more of a smart choice than 25G switch and 40G switch. In campus and access networks with their long fiber runs and low bandwidth needs, 40G switch is more worthy to buy. So far it seems that 25G switch is not a cost-effective solution.

Oznake: 25G switch, 40gb ethernet switch, 48 port switch

Fiber jumper cables are mainly used for connection in the context of optical fiber communications including applications like cable TV (CATV), inside buildings and in fiber to the home (FTTH) installations. Nowadays, optical fiber jumpers are varied in cables and connector types. It is hard to determine the differences between one fiber optic cable jumper and another. This article would put emphasis on guiding you to select the perfect fiber jumper cables from the following six perspectives.

Cable Type of Fiber Jumper Cables

Fiber jumper cables comes in two general types, singlemode and multimode optical fiber jumper. They are different in fiber diameter, classifications of fiber strands, jacket color, transmission speed and etc.

Singlemode fiber jumper cable generally has a 9 micron diameter glass fiber. There are two sub groups (referred to as OS1 and OS2) but most cable is "dual rated" to cover both classifications. Multimode optical fiber jumper can have several different diameters and classifications of fiber strands. The two diameters currently in use are 62.5 Micron and 50 Micron. Within the 50 Micron diameter multimode cable, there are three different grades (referred to as OM2, OM3, and OM4). The cable types used in the patch cord should match that of the network cabling to which they are attached via the patch panel.

Jacket Diameters

The fiber optic cable jumpers may be available in different "jacket diameters" (such as 2mm or 3mm). Thinner diameters (1.6 or 2mm) may be preferable in dense installation within a single rack since they take up less space and are more flexible. Fiber optic cable jumpers that route from rack to rack (especially via cable tray) may be more suitable if they have the thicker jacket that results in larger diameters thus making them more rigid.

Jacket Material

Flammability of the jacket material could become an issue if the area they are in has special requirements for flame spread or products of combustion in case of a fire. In these cases, optical jumpers may have to be classified as "Plenum Rated" (OFNP) rather than "Riser Rated" (OFNR).

Connector Type

See the connector type descriptions below. Some fiber jumper cables may have different connector types on each end to accommodate interconnection of devices with dissimilar connectors. In some cases, there may be a connector on only one end, and bare or unterminated fiber on the other. These are usually referred to as "pigtails" rather than "patch Cords".

Simplex or Duplex

Unlike copper patch cords which send information in both directions (having multiple pairs of conductors with which to do so), most fiber jumper cables have a single strand of fiber allowing for signal flow in one direction only.

Connecting equipment so that it can send and receive information requires two strands of fiber (one to transmit and one to receive information). This can be accommodated by using two "simplex" (single strand of fiber) cables for each equipment interconnection or a "duplex" cable, with conductors and/or connectors bonded together in pairs.

Length

Overall length of the fiber jumper cables may be specified in feet or meters, depending on your preference.

Conclusion

In this article, we mainly introduce six factors attaching to the fiber jumper cables—cable type, jacket diameters, jacket material, connector type, type of communication service as well as the length. You can select the proper patch cord you need through considering those six attributes. Hope this post is helpful for you to fully understand optical fiber jumper.

Oznake: optical jumper, optical fiber jumper, fiber optic cable jumpers, fiber jumper cables

We may quite familiar with indoor fiber optic cable, because it is an indispensable part of our daliy life. But for outdoor fiber optical cables, there are many factors needed to be considered, such as Ultraviolet, specific environment and etc. Different outdoor fiber optic cable matches for different environment. So what are they? And how they apply? This article would put emphasis on introducing the following four types of outdoor fiber optic cable, both singlemode fiber outdoor cables and multimode fiber outdoor cables are fully covered.

Aerial outdoor cable

Aerial outdoor cable is a kind of fiber optic cable, which is designed to be easier to install and faster to terminate than loose tube cables. 900-µm tight-buffered cables (one kind of aerial outdoor cable) are UL riser- and plenum-rated fiber optic patch cable, which are specially suited for duct and aerial installation points. No transition points are required at the building entrance.

The construction of this kind of fiber optic patch cord consists of color-coded buffered fibers surrounded by water-swellable aramid-strength members and a ripcord under an overall UV-resistant, flame-retardant black jacket. Bundles of six or 12 fibers are used for cables with fiber counts over 24. A water-swellable tape barrier provides additional water-blocking to protect the interstices from axial moisture migrations. Cables are available with fiber counts ranging from 6 to 48. Distribution cables include a selection of 62.5/125 µm and 50/125 µm multimode outdoor cables cables and singlemode outdoor cables enhanced.

Dry water-blocking outdoor cables

Being exploited by a dry water-blocking technology, dry water-blocking outdoor cables are designed to withstand harsh outdoor conditions. This kind of fiber optic cable is suitable for use within buildings, for outdoor installations or transitional aerial and duct applications, and for entrance facilities that require riser- or plenum-rated cable. An all-dielectric construction requires no grounding or bonding, while an armored cable construction has interlocking aluminum armor that eliminates the need for innerduct or conduit. The RoHS-compliant cable is available in singlemode (meets OS1 and proposed OS2 standards) and multimode (OM1, OM2, and10-Gbits/sec laser optimized OM3) types, and in fiber counts up to 144. This kind of fiber optic patch cable is an optimal choice under harsh environment.

Plenum outdoor cables

Plenum outdoor cables are flame-retardant and suitable for aerial, duct, riser and plenum installations. No transition splice is required when entering the building from a dedicated outside plant cable. Part of the company's LANs solutions, these cables feature 250-µm color-coded fibers for simplified identification during installation. The loose tube design provides mechanical and environment durability, and the cable's all-dielectric construction requires no grounding or bonding. This kind of fiber optic cable is available with 12 to 60 fibers and in 62.5- and 50-µm (including laser-optimized) and singlemode fiber outdoor versions, along with a flexible, flame-retardant, UV-resistant jacket.

Outdoor cable for factory

Featuring a proprietary pressure-extruded (core-locked) tightly bound outer jacket that firmly binds all fibers together so that the cable moves as a solid, rope-like unit, these tight-buffered cables are suited for industrial applications. This kind of fiber optic cable is designed with flex resistance of thousands of cycles, crush resistance of 2200 N/cm, the ability to withstand 1,000 impacts, and tensile load rating exceeding a ton. They are also constructed to withstand caustic and volatile chemicals, excessive moisture and fungus, UV exposure, and operating temperatures ranging from -55to 124. They are perfect options for factory environment.

Oznake: fiber optic cable, single mode fiber outdoor, fiber optic patch cord, fiber optic patch cables

Both Ethernet cables and telephone cables are good choices for home network. How to choose wisely for your home networking at the least cost but high performance? This question involves various factors, the sizes and types of files you will be transmitting, your networking planning, budget and Internet connection sharing.

Most of us hold the view that it is only Ethernet cables can achieve home network connectivity, and this assertion is incorrect. Telephone cables can also operate a network through frequency division multiplexing, which means that the data transmitted over the lines runs at a different frequency than the voice traffic. When you use the phone, data can be sent at the same time via a phone line network as well as fax can be sent via the Internet. Since the data sent by a modem is modulated to the same frequency as voice traffic, it is unnecessary to use the dial-up Internet.

Telephone cable is one of the merits of a phone line network. In the phone line network system, the telephone cable is in place already and thus it is redundant for you to connect them. You can connect a computer to the network in any room with a phone jack.

Ethernet cable, also called network cable, is the most common type of cable used for home and enterprise network connectivity. Network cables can be divided into several types according to different standard of classification. They can be divided into shielded twisted pair and unshielded twisted pair. Ethernet cables are also rated by Category, Cat5e, Cat6 and Cat6a are the most common types. Cat5e cable support 1G network while Cat6 and Cat6a support 10G network connectivity respectively. According to the different polish type, they can also be categorized as UPC and APC. Those three kinds of cabling relies on the twisting of the pairs to reduce signal loss and has terminating connectors called RJ45s, which are similar to but slightly larger than the RJ11 phone connectors.

For high-speed transmission, Ethernet cable is more appropriate for long-haul transmission. Phone networks originally operated at 1 Mbps to 2 Mbps, but newer networks can run at speeds up to 10 Mbps. However, 10 Mbps might be considered a disadvantage to this type of network since even with the newest technology, network speed is capped at 10 Mbps. The data rates after Cat6 (Cat6 is including) all can be up to 10 Gbps. If your demand only limits at some near area within short distance, and then telephone cable is your choice.

Relatively speaking, network patch cables are more expensive than telephone cables. But they do worth the money. If you have a tight budget, telephone cable would be a good choice as well. Merits of Cat6 cable (network cabling) are the availability of premade cables, the ability to run the Ethernet cable anywhere you want to put a computer and the speed of the data transfer. However, you need specialized equipment, in the form of hubs or switches, to make use of this cabling. These hubs and switches cost significantly more than the basic telephone connection equipment and can run in the hundreds of dollars.

Both telephone cable and Ethernet cable are of high security. But some kinds of network cable are fragile in certain circumstance, such as moist, squirrels in forests, truck with high clearance and etc. And thus, telephone cable is more secure than network cable.

This article mainly discussed about telephone cable and Ethernet cable, and made a comparison in terms of transmission speed, budget and security. The choice between Ethernet cable and phone cable comes down to your need for speed and your available budget at large extent.

Oznake: network patch cable, ethernet patch cable, telephone cable, cat5e cable, cat6 cable

It is generally acknowledged that build a new house is not a simple task, especially for setting up a new network in the new house. Cat5 network cable seems lags behind a lot in the long run of network cables. For future proofing network cables, both Cat6 and Cat7 Ethernet cables are good choice. Allodoxaphobia would occur under this occasion for most Ethernet users about the optimal one. This article would put emphasis on comparing the difference between Cat6 and Cat7 network cable, and guiding you to choose a better one for a new house in the following four aspects.

Specification is paramount to network cables, so do the Cat6 and Cat7 Ethernet cables. Cat7 Ethernet cable features even more strict specifications for crosstalk and system noise than Cat6 Ethernet cable. Shielding has been added for individual wire pairs on the Cat7 cable. Besides, CAT 7 is backwards compatible with traditional Cat5 and Cat6 Ethernet. And Shielding has been added for individual wire pairs on the Category 7 cable. Xmultiple's UltraJAX connectors are designed specifically for these high speeds with not contact pins and a printed circuit board with contact pads integrated into the RJ45 style housing.

For setting up a network in a new house, it is necessary for us to take the prevalent network speed in the years ahead. Will home machines will be able to actually use 10G even in the next 10 years? Years ago, people did to put in cat6 rather than cat5e. They believed the market went from 1G which runs fine on 5e directly to 10G which requires cat6a or cat7. All those people who thought they would "save" money in the future found out they wasted it. The now run 1G over their very expensive (at install time) cat6 cable and if they ever want to go faster will have to replace it just as if they had put in cat5e.

Cat6 cable standard provides performance of up to 250 MHz while Cat7 cable is rated for transmission frequencies of up to 600 MHz. The maximum cabling length of Cat6 network cable is 100 m. Cat7 has been designed as a standard for Gigabit Ethernet over 100 m of copper cabling.

With current SSD drives pushing past 500Mbytes which is around a 50% improvement in about a year and a half, 4k tv's needing around 10gbs because you never get max bandwidth, going to be throwing spam about your house. As far as I’m concerned, I would lean towards cat7a if there is only a few hundred pounds difference. Both Cat7 and Cat6 cables are relatively expensive than the Cat5, Cat5e. Relatively speaking, Cat7 cable is more expensive than Cat6 cable. If you cannot afford both of them, and then Cat5e would also be a good choice for 10G network.

According to the trend of network development, Cat7 cable is more appropriate for setting up a new house. The Cat7a network cable is particularly suitable for the new house. Under 40 Gigabit Ethernet, it will work up to 50 meters and under 100 Gigabit Ethernet, it is possible up to 15 meters. If you are in a tight budget, Cat6 and Cat5e cable would also be good choices.

Oznake: cat6 cable, cat6 ethernet cable, Cat7, Cat7 cable, cat7 vs cat6, cat6 vs cat7

As known to all, the fiber optic cables are divided into two types: singlemode and multimode, based on a completely different core diameter and mode of transmission. Singlemode fiber optic patch cables are called 9/125. This indicates the glass core is nine microns in diameter. The “125” is the size of the core plus the cladding (125 microns). Singlemode fiber optic patch cables can further be divided into simplex and duplex. This article would put emphasis on singlemode simplex and singlemode duplex fiber patches.

The ends of fiber patch are connected with connector plugs for connection of light circuit activity. If the cable has only one end terminated with connector while the other end ended with fiber, and then it is called pigtail. As we mentioned, the singlemode and multimode are two types of fiber patch cable. The diameter of the singlemode fiber core is 8Ľm~10Ľm. Fiber core is rounded with glass cover of lower refractive index than that of the fiber core, keeping the fiber inside the core. Outside the glass coating, it is a layer of thin plastic coating to protect the coating.

Compared to multimode fiber, singlemode fiber has a small loss in the long transmission distance. The potential of singlemode fiber's bandwidth makes it the only option for high-speed and long-distance data transmission. Simplex and duplex singlemode fiber cables are the further classification of singlemode patch cables. Simplex means this cable is with only one thread of fiber optic glass inside the single core. Duplex fiber cable can be regarded as two simplex cables, either singlemode or multimode, having their jackets conjoined by a strip of jacket material, usually in a zipcord (side-by-side) style. In the following figures and charts, we would give two groups of comparison about OS2 LC LC fiber patch cord (singlemode simplex and duplex) according to different polish type (UPC and APC).

Figure1: LC/UPC-LC/UPC singlemode simplex patch cable Vs. LC/UPC-LC/UPC singlemode duplex patch cable

Chart1: LC/UPC-LC/UPC singlemode simplex patch cable Vs. LC/UPC-LC/UPC singlemode duplex patch cable

Figure2: LC/UPC-LC/UPC singlemode simplex patch cable Vs. LC/UPC-LC/UPC singlemode duplex patch cable

Chart2: LC/UPC-LC/UPC singlemode simplex patch cable Vs. LC/UPC-LC/UPC singlemode duplex patch cable

According to the above pictures and charts, we figure out the differences between LC/UPC-LC/UPC singlemode simplex patch cable and LC/UPC-LC/UPC singlemode duplex patch cable, and between LC/UPC-LC/UPC singlemode simplex patch cable and LC/UPC-LC/UPC singlemode duplex patch cable based on the detailed parameter. In the simplex fiber patch, data is only supported in the one direction while the duplex patch allows the data to transmit in two directions.

Therefore, duplex communication is the combination of simplex single communications which requires that both sender and receiver have the independent ability of transmitting and receiving. Singlemode fiber patch cables are the best choice for transmitting data over long distances. They are usually used for connections over large areas, such as college campuses and cable television networks.

Oznake: LC to LC fiber cable, LC to LC fiber patch cable single mode, fiber optic cable, lc lc fiber patch cord