HP 10G SFP+ Optics Solution

Ratified in 2002, 10GbE standard is the same as previous Ethernet standards in almost every aspect, ensuring interoperability with all existing Ethernet technologies. Although 10G technology has been around for many years, its popularity has been slow. Enterprises has been reluctant to migrate to 10GbE within ten years after building out their 1GbE networks. But as virtualization and loud operations develops, 10GbE or higher bandwidth is greatly required. Today, there are a variety of products supporting 10GbE available on the market including the X2, SFP+, SFP+ DAC cable, servers, adapters and switches. And many vendors supply these products. As a representative, HP 10G SFP+ optics has been warmly welcomed by overall users. Therefore, today’s article will mainly introduce HP 10G SFP+ optics to you, especially the JD095C, JD097C and JD092B.

10GbE Makes it Possible

Ratified in 2002, 10G Ethernet standard just like early forms of previous Ethernet technologies can run over various types of fiber optic media including fiber optic media system, DAC cable and twinax-pair media system. 10GbE enables the capability to interoperate with Synchronous Optical Network (SONET) installations, paving the way to extend 10GbE backbones into metropolitan area networks (MANs) and wide area networks (WANs). At the same time, the 10GbE standard offers the potential to increase the performance and productivity of local area networks (LANs). The following image shows the existing 10G Topology for web-scale data centers including 48 servers/ToR, 3:1 oversubscription and low-cost, thin 4-wire SFP+ DAC cable.

HP SFP+ Optical Transceiver

The current 10GbE standard enables full-duplex 10GbE transmissions over distances up to 300 meters using multimode, 850nm fiber optic cable (SR); up to 10 kilometers (6 miles) using single-mode, 1,310nm optical fiber (LR); and up to 40 kilometers (25 miles) using 1,550nm fiber (ER). From XENPAK, X2 to XFP and SFP+, 10G optical transceiver modules have been developed rapidly to better meet users’ need. Comparing to the other 10G modules, SFP+ has won a larger market share and available on the market with the standard of SR, LR and ER. For instance, HP network has supplies a variety of 10G SFP+ modules with super performance. JD092B is HP 10GBASE-SR SFP+ operating at 850nm for a distance of 300m. Besides 10G SFP+ optical transceivers, SFP+ DAC cables are also indispensable for 10G interconnection application.

10G Copper Direct Attach Cable Solution

SFP+ DAC, or 10GSFP+Cu, is a copper 10GBASE twinax cable which comes in either an active or passive twinax cable assembly and connects directly into an SFP+ housing. SFP+ DAC cable has a fixed-length cable, typically 1 to 7 m (passive cables) in length. And like 10GBASE-CX4, is low-power, low-cost and low-latency with the added advantages of using less bulky cables and of having the small form factor of SFP+. Active optical cables (AOC) can not be neglected if you are talking about DAC cable. 10G AOC cables have the optical electronics already connected eliminating the connectors between the cable and the optical module. Both SFP+ AOC and DAC cable are lower cost than other optical solutions. The most obvious difference between them is that SFP+ AOC cable supports longer distance with a little higher price.

HP SFP+ DAC Cables

As noted before, SFP+ DAC cable today is tremendously popular, with more ports installed than 10GBASE-SR. HP company, established in 1939, is an American multinational information technology corporation. It is aimed at providing hardware, software and service to consumers, small or medium sized business and large enterprises. HP product lines including a vast range of hardwares widely used in printing, digital imaging, software, computing as well as network service. Here is what you should know about the HP 10G DAC cables.

JD095C is HP 10G SFP+ passive direct attach copper twinax cable. The following part lists the detailed information about JD095C.
Connector type: SFP+ to SFP+
Cable type: Passive copper cable
Cable length: 0.65m
Wire AWG: 30AWG
Max data rate: 100Gbqs

JD097C is also a HP 10G SFP+ passive direct attach copper twinax cable but with a longer distance of 3m. The above picture shows the HP JD097C SFP+ passive direct attach cable.

Summary

As we enter the 10 gigabit Ethernet era in the data center, we are facing some difficulties regarding cables and optics. But we are happy that we have find a cost-effective solution of SFP+ optical transceiver and DAC cables. HP SFP+ and DAC cables offered by Fiberstore are third-party optical modules. They are fully compatible with HP Switch/Router product line. The cost-effective HP SFP+ Optics are 100% tested before delivered worldwide. We provide HP compatible SFP+ transceivers which can be equivalent to HP J9150A, HP JD095C, HP J9152A, HP JD092B, HP JD097C and so on. If you have any question about our products, please send your request to us.

SFP+ DAC Cables – HP JD097C and JD095C Illustration

SFP+ Direct Attach or SFP+ DAC, as the name implies, uses SFP+ MSA and the inexpensive copper twinax cable with SFP+ connectors on both sides, provides 10G Ethernet connectivity between devices with SFP+ interfaces, which make itself a cost-effective solution for 10G network application. But SFP+ Direct Attach has a limited link distance within 10 meter. thus the target application is interconnection of top-of-rack switches with application servers and storage devices in a rack. Many vendors offer 10G SFP+ Direct Attach cables, today’s article will first talk about two HP SFP+ DAC cables—JD097C and JD095C, then move on to the further illustration of the 10G SFP+ DAC cables.

HP JD097C and JD095C

They are both HP DAC cables, JD097C is HP 10G SFP+ passive Direct Attach copper twinax cable with a link length of 3m, and JD095C has the same specification with the JD097C but with a shorter link distance of 0.65m. Table 1 shows the models of HP 10G SFP+ DAC cables. For the detailed information about SFP+ DAC cables, please read on.

10 Gigabit Ethernet and Copper Cabling Choices

As switching standards mature and copper cabling standards catch up, the use of copper cabling for 10GbE is becoming more common. Currently, there are three different copper cabling technologies for 10 Gigabit Ethernet, each with different price and performance capabilities (see Table 2). Although fiber (SFP+ optics) delivers the lowest latency, many IT departments use copper cabling for switch-to-switch or switch-to-server Connections.

10GBase-CX4, published in 2004, was the first 10 Gigabit Ethernet copper standard. CX4 was relatively economical and allowed for very low latency. Its disadvantage was a too-large form factor for high density port counts in aggregation switches. SFP+ is the latest standard for optical transceivers. 10G SFP+Cu Direct Attach Cables (DAC) connect directly into an SFP+ housing. This new copper solution has become the connectivity of choice for servers and storage devices in a rack because of its low latency, small form factor, and reasonable cost. 10GBase-T or IEEE 802.3an-2006 was released in 2006 to run 10 Gigabit Ethernet over CAT6a and CAT7 copper cabling up to 100 meters. While promising, 10GBase-T still needs technology improvements to lower its cost, power consumption, and latency.

Direct Attach Cables are Convenient for Short Runs

10G SFP+ Direct Attach is a copper interconnect using a passive twinax cable assembly that connects directly into an SFP+ housing. It has a range of 10 meters and like 10GBASE-CX4, is low power, low cost and low latency with the added advantage of having the small form factor of SFP+, and smaller, more flexible cabling. Figure 3 shows the basic components of 10G network.

SFP+ Direct Attach cables integrate SFP+ compatible connectors with a copper cable into a low-latency, energy-efficient, and low-cost solution. DAC are available in several lengths up to 10 meters (33 ft) and are the currently the best cabling option for short 10 Gigabit Ethernet connections.

Top-of-Rack (ToR) switches use the SFP+ form factor to provide high port density 10 Gigabit Ethernet in an efficient 1U form factor. Server and network storage vendors use 10 Gigabit SFP+ network adapters on their equipment for the same reason. DAC simplify rack cabling and termination. Each server and network storage device can be directly connected to the ToR switch, eliminating the need for intermediate patch panels. DAC are flexible enough for vertical cabling management within the rack architecture. The only cabling outside the rack is the ToR switch uplink connection to the aggregation layer, making moving racks easy.

Conclusion

The SFP+ interfaces enables mass migration of the 1GbE network to 10GbE by offering a very low cost 10G SFP+ (direct attached copper cable assembly) option for short reach interconnects along with multimode and single-mode fiber options. The SFP+ interface accepts along with hot-pluggable, small-footprint, optical transceivers, a Direct Attach Cable, which replaces two optical modules and a connectorized optical fiber with a twinax copper cable assembly. Fiberstore offers third-party SFP+ DAC cables including the above HP JD097C and JD095C. These compatible SFP+ interfaces are tested in prior to shipping to ensure its high quality and compatibility. If you have any requirement of our products, please send your request to us.