Tag Archives: SFP+ to SFP+ AOC

SFP+ AOC Assemblies — A Preferable Interconnect Solution for SFP+ Applications

Dramatically reducing 10G interconnectivity costs, the 10G SFP+ cables can provide inexpensive and reliable 10G speed connections using either SFP+ copper cables or SFP+ active optical cables (AOCs). SFP+ AOC is a cabling technology that accepts the same electrical inputs as a traditional copper cable. It uses optical fiber and electrical-optical conversion on the cable ends to improve speed and data transmission distance of the cable while not sacrificing compatibility with standard electrical interfaces. Nowadays, SFP+ AOC has been a preferable interconnect solution for SFP+ applications. Before choosing it for your applications, you need to have a basic understanding about it.

Description

AOC consists of multimode optical fiber, fiber optic transceivers, control chip and modules. SFP+ to SFP+ active optical cable is composed of SFP+ optical transceivers in both ends and fiber optic cable in between. This integrated optical module solution removes the complicated optical fiber interface and brings friendly and intuitive electrical-to-electrical interface to users. SFP+ AOC is designed to meet the requirements of high speed, high density and low power consumption for applications in today’s data centers via optical fiber wire. SFP+ AOC is compliant to industrial standard SFP MSA and provides high performance SFP+ interfaces, supporting 10Gb/s bi-directional operation. The demand for more bandwidth for data center is challenging interconnect technologies like Ethernet, Infiniband, and Fibre Channel. SFP+ AOC is one of the best solutions to solve this problem. The image below shows a Cisco SFP-10G-AOC10M compatible SFP+ to SFP+ AOC. It is a 10Gb/s, hot pluggable active optical cable for Ethernet data transmission.

10m Cisco SFP-10G-AOC10M Compatible SFP+ to SFP+ Active Optical Cable

Advantages

Compared to SFP+ copper cables for data transmission, SFP+ AOCs provide more advantages, as shown below:

  • Longer reach
  • Lower weight and tighter bend radius enable simpler cable management
  • Thinner cables allows better airflow for cooling
  • Lower power consumption
  • No need for power-hungry conditioning ICs on the host board
Application

SFP+ active optical cable is a 10Gbps and cost effective solution for 10G Ethernet (10GbE) applications. With industry-leading VCSEL technology and an advanced new light engine design, the SFP+ AOC assemblies are ideal for high-performance computing clusters, 10G Ethernet applications (10GbE), 4G and 8G Fiber Channel applications (4GFC/8GFC), 1x InfiniBand QDR, DDR, SDR, servers, switches, storage and network interfacing applications.

Conclusion

Fiberstore is a leading provider of optical and copper network equipment. We do provide a good selection of 10G SFP+ copper cables, both passive and active and options for SFP+ active optical cables. For example, IBM 95Y0326 compatible SFP+ to SFP+ active copper cable, HP J9285B and HP JG081C compatible SFP+ to SFP+ passive copper cables, and SFP+ AOC cables with various length choices like 1m, 3m, 5m, 7m, 10m, etc., all our SFP+ cables are 100% compatible with major brands like Cisco, HP, Juniper, Enterasys, Extreme, H3C and so on. If you would like to order high quality compatible SFP+ cables and get worldwide delivery. With a wide range of copper and optical networking equipment on offer, Fiberstore is sure to have the network equipment to fit your requirements.

Active Optical Cable for High-speed Transmission

There is no question that we live in a high-speed world. Active optical cable (AOC), especially parallel multi-lane cables using QSFP+ modules, is one of the most important devices used by high-speed interconnects, such as InfiniBand, and accurate cable testing is necessary to ensure reliable data transmissions and interoperability. What do active optical cables specifically bring to the table and why are they the way to go? Here is some detailed information about active optical cables.

What Is Active Optical Cable?

What is active optical cable? Let’s start with the basic definition that you would stumble upon if you happen to plug the term into a search engine: A specialized optical cable that uses electrical-to-optical conversion on the cable ends to improve speed and distance performance of the cable without sacrificing compatibility with standard electrical interfaces. A picture of Cisco QSFP-4X10G-AOC1M QSFP+ to 4SFP+ AOC is shown below.

Cisco QSFP-4X10G-AOC1M QSFP+ to 4SFP+ AOC

Advantages of Active Optical Cables

There are a number of reasons users are jumping to active optical cables. Primarily, these cables offer both higher bandwidth and a longer reach with a better footprint than current copper cables. Active optical cables provide lighter weight, smaller size, EMI immunity, lower interconnection loss, and reduced power requirements. Five meters of copper cabling weighs in at roughly a kilo. Ten meters of AOC weighs less than 150g. That weight difference means significantly less chance of damage to switch ports, less maintenance and better server utilization. Lighter and thinner cables are also easier to manage, require less space, and are easier to maintain.

Secondly, a key difference between copper, whether passive or active, and active optical is in bit error rates over distance. Beyond five meters, passive copper begins to suffer excessive bit error rates. Active copper improves range to around 15 meters, for roughly the same cost as active optical cable. Active optical cable for its part can operate reliably up to 100 meters, while the latest AOC products are extending their reach to 1km.

Thirdly, in comparison with transceiver products, active optical cables have the advantage of much greater simplicity, and potentially of reliability, as they are factory terminated, and there is no risk of mis-matching polarities, dirt entering the assemblies, or different manufacturers’ tolerance mismatching.

Applications of Active Optical Cables

Industry-leading active optical cables can achieve 40Gbps data rates over long reaches up to 10km, using a fraction of the power while providing streamlined installation. Low-power AOC integrated cable solutions provide less expensive, reliable transport for aggregated data rates up to 40Gbps. The active optical cables offer customers the flexibility of traditional optical modules by interfacing to systems via a standard QSFP MSA connector. QSFP+ to MPO optical cables allow an easy connection to separately installed single-mode fiber through the attached MPO connectors. Both product versions are electrically compliant with the QSFP+ interface InfiniBand, SDR (single data rate), DDR (double data rate), QDR (quad data rate), Ethernet (10 and 40Gbps), Fibre Channel (8 and 10Gbps), SAS (6Gbps) and other protocol applications. QSFP+ AOC can be used as a direct replacement for traditional copper cables with the added benefits of a lighter weight and smaller diameter solution for cable lengths from 1m to 100m. It can also be used to replace a pair of transceivers proving equivalent performance at a lower price.

Fiberstore is a professional manufacturer and supplier, which offers a large amount of cables and transceivers for your 40GbE applications. Fiberstore provides a large variety of active optical cables branded by major brands, like Cisco, HP, Juniper, Brocade and Finisar. For example, Juniper JNP-QSFP-DAC-10MA QSFP+ to QSFP+ AOC, and Finisar FCBG110SD1C03 SFP+ to SFP+ AOC, they both are suitable for very short distances and guaranteed with a limited lifetime warranty.