Twisted-pair and Direct-Attach Twinax Cables Will Become a Trend

Now fiber optic transceivers are commercially available for almost all international and industrial standards, including Ethernet, Fast Ethernet, Gigabit Ethernet, 10Gbit Ethernet. What’s take an important role in this situation is SFP fiber optic transceiver. So let’s take an eye on it. SFP is also called small form-factor pluggable which is a version of Mini GBIC. at first sight, you can find the size is only half of GBIC. It supports data rates up to 10 G. The SFP Transceiver are available with a variety of transmitter and receiver types. What’s more, it is with LC interface. The kind of SFP transceiver module called SFP-10G-SR in Fiberstore is a quite well choice, it is nearly same as Cisco SFP 10G SR. SFP is regarded as a hot pluggable module, this make it Effortless to alter and effortless for upkeep in comparison with conventional modules. It makes the Ethernet network easier to upgrade and sustain. End users can replace a Solitary SFP module Throughout the Procedure Rather of replace the complete board with various modules on it.

SFP+ twinax cables are copper cables with two SFP+ transceivers attached on either end. This  SFP cable is also known as Direct Attach Cables (DAC). Using twinax cable is significantly cheaper than connecting devices using two 10 Gbps fiber optic transceivers over fiber cable. There are two types of twinax cables. active and passive. In IBM b-type switches only active cables are supported which contain Vital Product Data (VPD) information. Twinax cable is available in length of 1m, 3m, and 5m. Also referred to as twinax, a direct-attach twinaxial cable is very similar to coaxial cable, except for one additional copper conductor core. Both twinax cores are protected by an insulator layer and another metallic conductor surrounding the core pair. Analogous to twisted-pair cables, both cores are twirled together to diminish interference effects from outside sources.

Originally created by IBM for shorter-distance connections, twinax cables offer a cost effective way to interconnect Ethernet devices within racks and across adjacent racks. These cables are usually accommodated into the transceiver housing of a switch or server. Direct-attach 10 Gigabit Ethernet twinax cables have Enhanced small form factor pluggable (SFP+) compatible connectors while 40 Gigabit Ethernet twinax cables deploy Enhanced Quad small form factor pluggable (QSFP+) connectors.

On both data rates, twinax cables are available in the following types. Active: Have components in the SFP+ or QSFP+ housing to improve the signal quality. Usually covers 7 and 10 meters. Passive: Have straight conduction between devices and are available in 1, 3, and 5 meters. for example Cisco SFP-H10GB-CU1M and what SFP-H10GB-CU1M in Fiberstore has same functions with Cisco’s and it also fully compatible with Cisco devices, the same time the price is lower than Cisco’s. Twinax cables have achieved high popularity in data centers because of their high benefit/cost ratio. As an additional advantages, twinax cables present a much lower bit error rate (1 error in 10 E18 bits transmitted) than the IEEE requirements for 10 Gigabit Ethernet connections (1 error in 10E12 bits transmitted). Although the 2004 IEEE 802.3ak standard was the first to introduce 10 Gigabit Ethernet in Twinax cables (10 GBase-CX4), this superseded solution was based on infiniband twinax cables, The twinax cables currently used in 10 Gigabit Ethernet are standardized by the small form format committee standard SFF-8431 and 8461.

Although the Ethernet standardization process has its fair share of politics, the study of its timeline remains a good way to access the networking industry trends over the last three decades. we can see some trends, such as twisted-pair roughly increased ten times its data rate every five years. That pace, however, did not continue in speeds higher than 10 Gbps. Optical fiber had a slightly faster development, being the first media to support data rates higher than 100 Mbps. It also presented the highest longevity among all media. Twinax cables have risen as a viable Ethernet option for 10-Gbps connections.

Because of the higher cost of optical transceivers, fiber is typically employed on links between switches, where higher speeds are required the earliest. High-volume connections, such as server access, depend on lower costs to justify an upgrade to faster data rates. For that reason, twisted-pair and direct-attach twinax cables have been the most popular choices for these connections.

At last, The above information are come from Fiberstore fiber optic manufacturer. Go ahead to check out the details! And the same time there is a good news is that Fiberstore is making a 30% discount about most products, welcome you to visit our online store.

Article Source: http://www.fiber-optical-networking.com/

Supply the SFP Transceiver Module and SFP Cables

Many people is likely t need SFP transceiver module or cables but they do not know which they should buy, and now I will introduce the two products in Fiberstore.

SFP-10G-SR is hot-swappable fiber transceiver module with 850nm VCSEL transmitter and PIN photo detector, it is fully compatible with IEEE 802.3ae 10Gbase-SR, electrical interface of the SFP+ SR is compliant to SFF-8431. SFP 10G SR features are low power consumption and it supports multi-rate from 2G fiber channel to 10G Ethernet. And we know Cisco SFP 10G SR is a SFP module that used for 10Gigabit applications, we Fiberstore supply Cisco the SFP 10G SR equivalent transceivers, they are compatible to work with both 50/125MMF and 62.5/125MMF, the characteristics of the other feature the good prices, excellent performance and 100% compatibility.

The SFP 10G SR hot swappable transceiver use LC connector interface, supports a link length of 26m on standard Fiber Distributed Data Interface (FDDI)-grade multimode fiber (MMF). Using 2000 MHz*km MMF (OM3), up to 300m link lengths are possible. The SFP 10G SR modules are easy for deployment and maintenance, Rohs compliant and meet the IEEE standards for 10G Ethernet. 10 Gigabit Ethernet over copper is most commonly found in an SFP+ direct attach form-factor, in which twinaxial copper is terminated by SFP+ housing attached to the end of the cable, Some vendors refer to these as Direct Attach Copper (DAC) cables. These are used for fairly short runs, 1 to 7m for passive cables or up to 15m for active cables, with the latter drawing transmission power from the connected device. 10 Gigabit copper over UTP(10GBase-T) is also available, but is less common at the moment, as upgrading infrastructure to support it tends to cost more than using existing SFP+ ports.

In fact, External ports include 14 ports for 1 Gb or 10 Gb Ethernet SFP+ transceivers (support for 1000Base-SX, 1000Base-LX, 1000Base-T, 1000Base-SR, or 10GBase-LR) or SFP+ copper direct-attach cables (DAC). Ten ports are enable by default. An optional FoD license is required to activate the remaining four ports. SFP+ modules and DAC cables are not included and must be purchased separately. When 10 GbE started to be widely deployed in the data center, the most prominent copper cable type used was based on the enhanced small form-factor pluggable (SFP+) standard. The SFP+ reach is limited to about 7 m when using direct attached copper cables and around twice that when using active copper transceivers in the cable connectors. For longer reaches, optical cables are used between the racks. But these SFP+ cables are relatively expensive compared to Cat5.

The Cisco 10GBASE SFP+ modules offer customers a wide variety of 10 Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and service provider transport applications. Cisco SFP+ Copper Twinax direct-attach cables are suitable for very short distances and offer a cost-effective way to connect within racks and across adjacent racks. Cisco offers passive Twinax cables in lengths of 1, 1.5, 2, 2.5, 3 and 5 meters, and active Twinax cables in lengths of 7 and 10 meters. As we know Cisco SFP-H10GB-CU1M, this SFP-H10GB-CU1M can apply into 1-8G Fiber Channel and 1-10G Gigabit Ethernet, or these devices such as Hub, Switches, Routers, Servers, Network Interface Card (NICs), its function mainly include networking, storage, telecommunications.

Fiberstore is a leading manufacturer and supplier of fiber optic transceiver.module and SFP cable. They have a large quantity of SFP transceivers and cables in stock. All of the SFP-10G-SR transceivers are tested in-house prior to shipping to insure that they will arrive in perfect physical and working condition. And they guarantee the SFP-10G-SR transceivers to work in your system and all of fiber optic equipment coming with a lifetime advance replacement warranty. And very pleasnat news it that Fiberstore is doing with 30% of the price on sale of most fiber optical products, and if you want to know more, welcome to visit our online store.

Article Source: http://www.fiber-optic-solutions.com/

Fiberstore DAC Cable Compatible For Cisco 10Gigabit Ethernet

Fiberstore, the leading interconnect manufacturer formally announced the expansion of its high-speed 10-Gigabit products which have established a reputation for premium quality, proven performance and competitive prices. The Fiberstore interconnect solutions: 10-Gigabit solution saving starts Now at Fiberstore on demand. Buy direct from the world’s largest SFP+ cable OEM and save with new discounted pricing.

10G SFP+ Direct Attach Cable (DAC), twinax cable with SFP+ connector, is designed to work with equipment with 10G SFP+ interface,and pirce is cheap.For example: Cisco SFP-H10GB-CU1M Compatible SFP to SFP Copper direct-attach cables only need US$ 18.00. (from Fiberstore Interconnect Compatible Solutions).This cable offers the same function with Cisco SFP-H10GB-CU1M and it is fully compatible with Cisco devices.They provide a low cost, low power and low latency interconnect solution for 10-Gigabit Ethernet, Fiber Channel and other industry standards, and are direct attached compliant and fully conform to the SFP+ MSA specifications.

Fiberstore offers all DAC cable compatible for Cisco 10-Gigabit Ethernet:
SFP+ Twinax Copper Cables

Figure 1. 10G SFP+ Twinax Copper Cable.

SFP+ copper twinax direct attach cables are suitable for very short distances and offer a cost-effective way to connect within racks and across adjacent racks. Fiberstore passive Twinax cables in lengths of 1, 1.5, 2, 2.5, 3 and 5 meters, and active Twinax cables in lengths of 7 and 10 meters.(Cisco Twinax Cables)

SFP+ Active Optical Cables

Figure 2. 10G SFP+ Active Optical Cable.

SFP+ active optical cables (AOC) are direct-attach fiber assemblies with SFP+ connectors. They are suitable for very short distances and offer a cost-effective way to connect within racks and across adjacent racks. Fiberstore offers Active Optical Cables in lengths of 1, 2, 3, 5, 7, and 10 meters.

Fiberstore offers customized service for cable length. Fiberstore provides 10G SFP+ cables, including 10G SFP+ copper passive / active cable and 10G SFP+ AOC cable, in various lengths according to requirement of customers. (Custom SFP+ Direct Attach Cable)

If you are in the market for high speed copper cables, such as CX4 Cables, HD Mini-SAS Cables, SFP+ Cables, QSFP Cables. Today is the perfect time to buy with the 30% Saving.These cables are 100% compatible with major brands like Cisco, HP, Juniper, Enterasys, Extreme, H3C and so on.