SFP+ direct attach cable (DAC), which provides a lower-power means for operation on short fiber optic links or short copper connections, has been a preferable solution to accommodate the ever-growing number of operating systems and applications and the significantly increased data transmission between the servers and switches. This post will give a brief introduction to SFP+ direct attach cable.
Overview of SFP+ Direct Attach Copper CableJo Wang
SFP+ direct attach copper cable assembly is a high speed and cost-effective alternative to fiber optic cables in 10G Ethernet applications. 10g copper SFP is suitable for short distances, and ideal for highly cost-effective networking connectivity within a rack and between adjacent racks. It enables hardware OEMs and data center operators to achieve high port density and configurability at a low cost and reduced power requirement. SFP+ direct attach copper cable has been a good solution. This post will provide you with some basic information about SFP+ direct attach copper cable.
Two main media options are available for 10GbE interconnect: copper and fiber optics, including 10GBASE-CX4, SFP+ DAC, 10GBASE-T, 10GBASE-SR, 10GBASE-LR, 10GBASE-ER, 10GBASE-ZR, and so on.
Fibre Optic Cabling Or Copper Data Cabling – Which Should You Choose?
What are the advantages and disadvantages of fibre optic cable?
What are the advantages and disadvantages of copper cable?
Cat6 vs Cat7. What is the Difference
The first consideration when choosing Cat6 vs Cat7 is what is the outcome you are trying to achieve with your data cabling infrastructure
It is the design and installation of a cabling systems that will support multiple hardware use systems and be suitable for today’s needs and those of the future
Active optical cables for high performance connectivityFern Xu
As copper connectivity faces some limitations such as low bandwidth, AOCs have been preferred to accelerate data connectivity for storage, networking, and high-performance computer (HPC) applications.
In recent years, 40 Gigabit Ethernet (GbE) has gained more popularity and the market of 40GbE is encouraging. But with the rapid growth of the new standard 100GbE, a new voice is announcing, namely 25GbE. As the increasing bandwidth requirements of private and public cloud data centers and communication service providers, 25GbE will to have a significant impact on server interconnect interfaces. Now you have two upgrade paths to 100G, 10G-25G-100G and 10G-40G-100G. Which one to choose? This post will make a comparison of 25GbE and 40GbE cabling, hoping it can help you make an appropriate decision.
Overview of SFP+ Direct Attach Copper CableJo Wang
SFP+ direct attach copper cable assembly is a high speed and cost-effective alternative to fiber optic cables in 10G Ethernet applications. 10g copper SFP is suitable for short distances, and ideal for highly cost-effective networking connectivity within a rack and between adjacent racks. It enables hardware OEMs and data center operators to achieve high port density and configurability at a low cost and reduced power requirement. SFP+ direct attach copper cable has been a good solution. This post will provide you with some basic information about SFP+ direct attach copper cable.
Two main media options are available for 10GbE interconnect: copper and fiber optics, including 10GBASE-CX4, SFP+ DAC, 10GBASE-T, 10GBASE-SR, 10GBASE-LR, 10GBASE-ER, 10GBASE-ZR, and so on.
Fibre Optic Cabling Or Copper Data Cabling – Which Should You Choose?
What are the advantages and disadvantages of fibre optic cable?
What are the advantages and disadvantages of copper cable?
Cat6 vs Cat7. What is the Difference
The first consideration when choosing Cat6 vs Cat7 is what is the outcome you are trying to achieve with your data cabling infrastructure
It is the design and installation of a cabling systems that will support multiple hardware use systems and be suitable for today’s needs and those of the future
Active optical cables for high performance connectivityFern Xu
As copper connectivity faces some limitations such as low bandwidth, AOCs have been preferred to accelerate data connectivity for storage, networking, and high-performance computer (HPC) applications.
In recent years, 40 Gigabit Ethernet (GbE) has gained more popularity and the market of 40GbE is encouraging. But with the rapid growth of the new standard 100GbE, a new voice is announcing, namely 25GbE. As the increasing bandwidth requirements of private and public cloud data centers and communication service providers, 25GbE will to have a significant impact on server interconnect interfaces. Now you have two upgrade paths to 100G, 10G-25G-100G and 10G-40G-100G. Which one to choose? This post will make a comparison of 25GbE and 40GbE cabling, hoping it can help you make an appropriate decision.
The QSFP+ optical transceiver is the dominant transceiver form factor used for 40 Gigabit Ethernet applications. In the year of 2010, the IEEE standard 802.3ba released several 40-Gbps based solutions, including a 40GBASE-SR4 parallel optics solution for multimode fiber. Since then, several other 40G interfaces have been released, including 40GBASE-CSR4, which is similar to 40GBASE-SR4 but extends the distance capabilities.
Fan out technology used in 40 gbe deploymentFern Xu
To deliver the higher HSE port density for 40GbE interfaces, fan-out (breakout or harness) cabling technology is introduced here which also meets the need to keep costs at a manageable level.
Fiberstore's 10 gigabit ethernet transceivers and cables faqAngelina Li
The pinouts of SFP and SFP+ connectors are identical. However, SFP has a maximum data rate of 5Gb/s whereas SFP+ is designed for 10Gb/s. The SFP receptacles and plugs are not as well impedance matched as SFP+ receptacles and plugs. Also SFP+ cable is designed for 10Gb/s whereas SFP cable may not be able to satisfactorily transmit that rate.
10GBASE-T permits the flexible distance reach. More importantly, its backward compatibility with existing 1GbE networks makes it the ideal cost-effective media option for 10GbE infrastructure.
Cost effectively scale data center to 40 g with active copper cablesKerry Zhang
The development of cabling technology in data center is driven by the ever-increasing bandwidth needs. The battle in data center between cabling performance, transmission distance and cost has never stopped and now it becomes fiercer with 40G becomes the target of most data center.
Are You Ready for Embracing 100G Ethernet?Angelina Li
Ethernet as the networking standards, enables computers to locally connect to each other, which is
the ultra-strong backbone to the many networks we use every day. Although most of the Ethernet
market is still running around 1 Gbqs or 10 Gbqs, there is a strong interest in higher data rates.
Many analysts predict that 10 Gigabit Ethernet (10GbE) is ready to take off in HPC environments. 10GbE can meet low-latency and high bandwidth I/O requirements using familiar Ethernet networking leveraging Ethernet training, and management and debugging tools, which are ubiquitous in networking. Using efficient and cost-effective 10GbE to interconnect the blade servers, HPC clusters can take advantage of dense blade-server compute nodes to lower power consumption and reduce floor space.
Born in the 1970s, Ethernet technology has continually evolved in order to meet the never-ending requirement for faster rates of data transmission. Through this ongoing evolution, it has matured into the foremost technology standard for local area networks (LANs) as newer, higher performing iterations, such as 1 Gigabit Ethernet and 10 Gigabit Ethernet. There is a variety of types of cables available for making Ethernet connections at speeds of 1 Gigabit and 10 Gigabit per second. This paper provides a brief introduction to these two types of high speed Ethernet cabling solution, 1 Gigabit Ethernet cabling and 10 Gigabit Ethernet cabling.
With the requirements placed on data center increasing rapidly, the ability to flexibly adapt to future demands is tremendously crucial for data center managers. Copper cabling has developed itself to cope with the fierce competition fo telecom field, if you are interested, you should take a look at this PDF.
Twisted copper or fiber optic cabling for the data centerAngelina Li
When planning for a long-term cabling solution for your data center, it is important to consider future transmission speeds and the infrastructure to support them.
The occurrence of 25GbE changes the data center Ethernet landscape of some enterprises and organizations, creating a viable market for high-speed, reasonably-priced connectivity. How much do you know about this 25GbE network?
Transceiver Options for Brocade 5100 SwitchMonica Geller
Nowadays, many small and medium business and organizations such as local government, campus and some agencies etc., require fast and frequent access to database the files. A storage Area Network (SAN) with Fibre Channel (FC) switching technology (Figure 1) offers the speed and reliability for them. Brocade 5100 switch is an ideal Fibre Channel switch used for those organizations and can meet a variety of SAN environments.
Fiber patch cable selection guide for 40 g qsfp+ transceiversKerry Zhang
Cable type, connector type and switch port in selecting the right patch cords for 40G QSFP+ transceivers are necessary and important. They are closely related to the transmission distance, network flexibility and reliability of the whole 40G network.
400 GigE is the first Ethernet standard not to incorporate copper cable. There is some talk about implementing 400 GigE for ultra-short reach links on a board or even board-to-board. But for the typical data center applications – rack-to-rack and beyond – it’s fiber all the way. An open question is how will the fiber be implemented? The options here being field termination and active optical cables.
Development of 40 gbase isr4 qsfp+ transceiverMonica Geller
40GBASE-iSR4 QSFP+ transceiver provides an effective solution for users who seek to increase the capacity of their switching networks. With the reduced maximum specified output power, the QSFP+ iSR4 is able to support standard 40G Ethernet links up to 100 meters over OM3 and 10GBASE-SR links over the same distances. The QSFP+ form factor increases the effective 10G Ethernet port count density by a factor of 3 over the standard SFP+, while allowing for a decrease in overall power dissipation.
The QSFP+ optical transceiver is the dominant transceiver form factor used for 40 Gigabit Ethernet applications. In the year of 2010, the IEEE standard 802.3ba released several 40-Gbps based solutions, including a 40GBASE-SR4 parallel optics solution for multimode fiber. Since then, several other 40G interfaces have been released, including 40GBASE-CSR4, which is similar to 40GBASE-SR4 but extends the distance capabilities.
Fan out technology used in 40 gbe deploymentFern Xu
To deliver the higher HSE port density for 40GbE interfaces, fan-out (breakout or harness) cabling technology is introduced here which also meets the need to keep costs at a manageable level.
Fiberstore's 10 gigabit ethernet transceivers and cables faqAngelina Li
The pinouts of SFP and SFP+ connectors are identical. However, SFP has a maximum data rate of 5Gb/s whereas SFP+ is designed for 10Gb/s. The SFP receptacles and plugs are not as well impedance matched as SFP+ receptacles and plugs. Also SFP+ cable is designed for 10Gb/s whereas SFP cable may not be able to satisfactorily transmit that rate.
10GBASE-T permits the flexible distance reach. More importantly, its backward compatibility with existing 1GbE networks makes it the ideal cost-effective media option for 10GbE infrastructure.
Cost effectively scale data center to 40 g with active copper cablesKerry Zhang
The development of cabling technology in data center is driven by the ever-increasing bandwidth needs. The battle in data center between cabling performance, transmission distance and cost has never stopped and now it becomes fiercer with 40G becomes the target of most data center.
Are You Ready for Embracing 100G Ethernet?Angelina Li
Ethernet as the networking standards, enables computers to locally connect to each other, which is
the ultra-strong backbone to the many networks we use every day. Although most of the Ethernet
market is still running around 1 Gbqs or 10 Gbqs, there is a strong interest in higher data rates.
Many analysts predict that 10 Gigabit Ethernet (10GbE) is ready to take off in HPC environments. 10GbE can meet low-latency and high bandwidth I/O requirements using familiar Ethernet networking leveraging Ethernet training, and management and debugging tools, which are ubiquitous in networking. Using efficient and cost-effective 10GbE to interconnect the blade servers, HPC clusters can take advantage of dense blade-server compute nodes to lower power consumption and reduce floor space.
Born in the 1970s, Ethernet technology has continually evolved in order to meet the never-ending requirement for faster rates of data transmission. Through this ongoing evolution, it has matured into the foremost technology standard for local area networks (LANs) as newer, higher performing iterations, such as 1 Gigabit Ethernet and 10 Gigabit Ethernet. There is a variety of types of cables available for making Ethernet connections at speeds of 1 Gigabit and 10 Gigabit per second. This paper provides a brief introduction to these two types of high speed Ethernet cabling solution, 1 Gigabit Ethernet cabling and 10 Gigabit Ethernet cabling.
With the requirements placed on data center increasing rapidly, the ability to flexibly adapt to future demands is tremendously crucial for data center managers. Copper cabling has developed itself to cope with the fierce competition fo telecom field, if you are interested, you should take a look at this PDF.
Twisted copper or fiber optic cabling for the data centerAngelina Li
When planning for a long-term cabling solution for your data center, it is important to consider future transmission speeds and the infrastructure to support them.
The occurrence of 25GbE changes the data center Ethernet landscape of some enterprises and organizations, creating a viable market for high-speed, reasonably-priced connectivity. How much do you know about this 25GbE network?
Transceiver Options for Brocade 5100 SwitchMonica Geller
Nowadays, many small and medium business and organizations such as local government, campus and some agencies etc., require fast and frequent access to database the files. A storage Area Network (SAN) with Fibre Channel (FC) switching technology (Figure 1) offers the speed and reliability for them. Brocade 5100 switch is an ideal Fibre Channel switch used for those organizations and can meet a variety of SAN environments.
Fiber patch cable selection guide for 40 g qsfp+ transceiversKerry Zhang
Cable type, connector type and switch port in selecting the right patch cords for 40G QSFP+ transceivers are necessary and important. They are closely related to the transmission distance, network flexibility and reliability of the whole 40G network.
400 GigE is the first Ethernet standard not to incorporate copper cable. There is some talk about implementing 400 GigE for ultra-short reach links on a board or even board-to-board. But for the typical data center applications – rack-to-rack and beyond – it’s fiber all the way. An open question is how will the fiber be implemented? The options here being field termination and active optical cables.
Development of 40 gbase isr4 qsfp+ transceiverMonica Geller
40GBASE-iSR4 QSFP+ transceiver provides an effective solution for users who seek to increase the capacity of their switching networks. With the reduced maximum specified output power, the QSFP+ iSR4 is able to support standard 40G Ethernet links up to 100 meters over OM3 and 10GBASE-SR links over the same distances. The QSFP+ form factor increases the effective 10G Ethernet port count density by a factor of 3 over the standard SFP+, while allowing for a decrease in overall power dissipation.
Fiber Patch Cable Solutions for Transceiver Ports InterconnectionJo Wang
Fiber optic jumper cables are designed to interconnect or cross connect fiber networks within structured cabling systems. They are commonly used in data centers to interconnect ports and transceivers that accept LC and MPO/MTP fiber optic connectors. There are a full range of cost-effective fiber optic patch cable solutions which can meet your demands now and for your upgrades in the future. In this post, we will demonstrate the high-speed fiber patch cable solutions for 10G, 40G, and 100G Ethernet transceiver ports interconnection.
JTOPTICS® presents the 10GBASE SR 300m SFPP optical transceiver, denoted as the 10G SFPP SR (JT 10G SFPP DD SR) SFP+ transceiver. This SFP+ module supports link lengths of up to 400m over OM4 MMF (300m over OM3 MMF) through an LC duplex connector. The transceiver offers digital diagnostics monitoring via a 2-wire serial interface, following the specifications outlined in SFF 8472. Each SFP+ transceiver module undergoes individual testing to ensure compatibility with Cisco switches, routers, servers, network interface cards (NICs), and similar devices.
Key Features:
Full duplex transceiver module for efficient bidirectional communication.
Utilizes a hot-pluggable SFP+ form factor for convenient installation.
Compliant with the SFP+ MSA standard, ensuring interoperability.
Incorporates a VCSEL transmitter and PIN receiver for reliable data transmission.
Supports a data rate of up to 11.3Gbps for high-speed performance.
Compliance with CPRI specifications for specific telecommunication applications.
Maximum link length of 300m, offering flexibility in connectivity.
Low power dissipation for energy-efficient operation.
Operating case temperature range suitable for both commercial and industrial environments.
Operates on a single 3.3V power supply.
RoHS 6 compliant, ensuring adherence to environmental standards by being lead-free.
Introduction to two common qsfp+ cable types for 40 g ethernetTeresa Huang
In order to satisfy the increasing demand for greater bandwidth and the growing amount of data transmission in today’s enterprise data center and networking environments, various kinds of high-performance and reliable cables are designed, like QSFP+ cables.
Data center interconnects multimode vs. single modeAngelina Li
The rapid growth in storage and computing services is driving an expansion in both the physical size
and overall computing power of the modern data center. This high-speed data interconnects linking
the individual optical elements within a data center are typically comprised of fiber optical solutions
(multimode or single-mode)
For more details on our products and services, please feel free to visit us at Fiber Optic Patch Cable, Cat6 Patch Cables, Fiber Media Converters, QSFP+ Transceiver, SFP+ Transceiver
For more details :- http://cablexa.com/
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
JMeter webinar - integration with InfluxDB and Grafana
Introduction to SFP+ Direct Attach Cable
1. WHITE PAPER
Fiberstore White Paper | Introduction to SFP+ Direct Attach Cable 1
More bandwidth is needed to support the use of server virtualization. The amount and type of
devices residing on the network has also dramatically increased the amount of data that needs to
be transmitted to and from storage area networks (SANs). SFP+ direct attach cable (DAC), which
provides a lower-power means for operation on short fiber optic links or short copper connections,
has been a preferable solution to accommodate the ever-growing number of operating systems and
applications and the significantly increased data transmission between the servers and switches.
This post will give a brief introduction to SFP+ direct attach cable.
What Is SFP+ Direct Attach Cable?
First, we need to know what SFP+ direct attach cable is. It is a fixed assembly that is purchased at a
given length, with SFP+ connector modules permanently attached to each end of the cable. SFP+
direct attach cable uses an enhanced SFP+ connector to transmit and receive 10Gbps data through
one paired transmitters and receivers over a thin twinax cable or a fiber optic cable. It provides high
performance in 10 Gigabit Ethernet network applications. 10G SFP+ direct attach cable is designed
to use the same port as an optical transceiver, but compared with optical transceivers, the
connector modules attached to the cable leave out the expensive optical lasers and other electronic
components, thus achieving significant cost savings and power savings in short reach applications.
Advantages of SFP+ Direct Attach Cable
SFP+ direct attach cable is a low cost, low power consumption and low latency solution that is ideal
for high-density, in-rack 10Gbps connections between servers and switches. It provides better cable
management for high-density deployments and enhanced electrical characteristics for the most
reliable signal transmission. Here are several outstanding advantages of SFP+ direct attach cables.
MSA compliant—fully conform to the SFP+ MSA specifications
High speed—support 10 Gbps data rates with backwards compatibility to 1 Gbps
Reliability—RoHS compliant with excellent EMI performance and high reliability
Scalability and flexibility —provide enhanced scalability and flexibility, and higher density for
today's data centers and storage area networks
Space saving—offer the smallest 10 gigabit form factor and a small overall cable diameter for
higher density and optimized rack space in 10G Ethernet uplinks and Fibre Channel
Introduction to SFP+
Direct Attach Cable
2. WHITE PAPER
Fiberstore White Paper | Introduction to SFP+ Direct Attach Cable 2
Cost saving—cost up to three times less than fiber optic solutions, while offering lower latency
and consuming up to 50% less power per port than current copper twisted-pair cabling systems
Types of SFP+ Direct Attach Cable
Generally speaking, SFP+ direct attach cable can be divided into SFP+ direct attach copper cables
and SFP+ active optical cables (AOCs). This part will discuss these two kinds of SFP+ direct attach
cables.
There are two types of SFP+ direct attach copper cables, SFP+ active copper cable (ACC) and SFP+
passive copper cable (PCC). SFP+ passive copper cable (PCC), or passive SFP+ DAC, is fully compliant
to the SFF-8431 SFP+ MSA. It has no signal amplification in the cable assembly. When it is utilized,
electronic dispersion compensation (EDC) is typically used on the host board designs. EDC allows for
an extended length of passive cable assemblies. They deliver high-speed connectivity between
active equipment with SFP+ ports. The copper cable trunks are made to order, reducing installation
time and maximizing flexibility. The low power consumption assists in making the passive copper
cable assembly an economic solution for within rack or rack to rack applications. SFP+ active copper
cable (ACC) has signal amplification and equalization in the cable assembly. SFP+ ACC assemblies are
typically used in host systems that do not employ EDC. They also incorporate Rx LOS and Tx Disable
features. As with passive cables, the industry standard EEPROM signature enables the host system
to differentiate between an active copper cable and a fiber optic transceiver. The picture below
shows an HP JG081C compatible 10G SFP+ passive direct attach copper cable.
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 electrical-to-electrical interface to users. SFP+ AOC 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. 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
3. WHITE PAPER
Fiberstore White Paper | Introduction to SFP+ Direct Attach Cable 3
optical fiber wire. It has been a preferable interconnect solution for SFP+ applications. SFP+ AOC is
compliant to industrial standard SFP MSA and provides high performance SFP+ interfaces,
supporting 10Gb/s bi-directional operation. The image below shows a Cisco SFP-10G-AOC10M
compatible 10G SFP+ active optical cable.
Conclusion
SFP+ direct attach cable provides a cost-effective and low power consumption solution for
high-density 10 Gigabit connections. These three types of 10G SFP+ direct attach cable assemblies,
10G SFP+ passive copper cable (PCC), 10G SFP+ active copper cable (ACC), and 10G SFP+ active
optical cable (AOC) are of their special applications. SFP+ direct attach cable has a lot of advantages.
It now has been a very popular choice in the market.
4. WHITE PAPER
Fiberstore White Paper | Introduction to SFP+ Direct Attach Cable 4
Contact Us
Manufacturing R & D (China)
Eastern Side, Second Floor, Science &
Technology Park, No.6, Keyuan Road,
Nanshan District, Shenzhen 518057,
China
Tel: +86 (755) 8300 3611
Fax: +86 (755) 8326 9395
Email: sales@fiberstore.com
APAC Office (Hong Kong)
1220 Tung Chun Commercial Centre,
438-444 Shanghai Street, Kowloon,
HongKong
Tel: +852 81763606
Fax: +852 81763606
Email: sales@fiberstore.com
North America (United States)
331 Andover Park East Ste330, Tukwila,
WA 98188,United States
Tel: +1-425-226-2035
Fax: +1-253-246-7881
Email: sales@fiberstore.com
London Office (United Kingdom)
Third Floor 207 Regent Street, London,
W1B 3HH, United Kingdom
Tel: +44 2081441980
Notice: This document is for informational purposes only and does not set forth any warranty, expressed or
implied, concerning any equipment, equipment features, or service offered or to be offered by Fiberstore.
Fiberstore reserves the right to make changes to this document at any time, without notice, and assumes no
responsibility for its use. This information document describes features that may not be currently available.
Contact a Fiberstore sales team for information on feature and product availability.
Follow us
LinkedIn
Twitter
Facebook
G+
Pinterest
Youtube
Blog
