julianusjuli.info | Free Sharing Information About Office Network Cabling Infrastructure (UTP cat.6, optical fiber, rack, patch panel, etc), Designing and Installation of New-Structure of Data Center System

Newsflash

Computer Tips: How to keep dust out of your PC

Have you ever had a PC that started making strange whining noises? Even if you've investigated the cause of the noises, which can often sound pretty serious when you hear them, you may not realise the reason for them. The chances are they're caused by a cooling fan with dust in its bearing.

Fans are one of the few components in a PC which have unsealed moving parts. By their nature, they have to be open to the air to suck heat out of the machine and push cool air in. As a result, they're extremely susceptible to all the airborne particles that make up household dust.

Five Strategies for Building Data Center On 2010

Written by Julianus Yu

With 2010 around the corner, data center managers find themselves in an unenviable position – making planning and budgetary decisions in the face of a precarious economy. Confronted with lingering questions about the likelihood of an economic turnaround – and with the crystal ball murky – it consequently can be difficult to make concrete plans and decisions. But with organizational health at stake, blind guesswork is not an option.

First step: Don’t panic. As you get ready to prioritize data center activities for next year, keep in mind that this is an opportunity to showcase IT’s value to your organization. Make sure your approach is aligned, supported and connected to your organization’s overall business strategy. Be strategic and organized as you create program goals, and secure buy-in from senior leadership. The bottom line is even if you get approval from executive management to move full steam ahead, your project won’t go as intended unless you have done your homework. With that in mind, here are five tips to help you prioritize spending and cut costs without cutting corners:

Survey says: Data center network-improvement activity ongoing

Written by Julianus Yu

In September CommScope (www.commscope.com) released details of a survey it conducted among 730 information-technology professionals from 54 countries. Those surveyed have responsibility for their organizations’ data centers, and the survey asked about the participants’ priorities, actions, and plans to adopt new technologies and techniques.

CommScope issued the report entitled “Innovating in a Time of Change: Investment and Technical Trends in the Data Center” along with the company’s partners in this survey, fellow data center solution providers Eaton Corp. (www.eaton.com), Intel Corp. (www.intel.com), and Brocade (www.brocade.com).

Tests show shielded better than unshielded for 10GBase-T

Written by Julianus Yu

Tyco Electronics’ AMP Netconnect business unit recently announced that third-party test laboratory GHMT AG completed an independent study of unshielded twisted-pair (UTP) versus shielded twisted-pair (STP) systems for 10GBase-T transmission. According to Tyco, the study proves that shielded copper is the ideal cabling infrastructure system to support 10GBase-T.

Tyco says the study compared the performance of two U/UTP, one F/UTP, and two S/FTP cabling systems using live 10GBase-T equipment and traffic in conditions established in international MICE (Mechanical, Ingress, Chemical, and Electromagnetic) classifications.

The Golden Rules of Data Cabling

Written by Julianus Yu

The Golden Rules of Data Cabling

One for sure that we usually forget the key part of data cabling system, here some of the important part that we should keep in mind before we decide to setting up our data cabling system ;

Networks never get smaller or less complicated.

Build one cabling system that will accommodate voice and data.

Always install more cabling than you currently require. Those extra outlets will come in handy someday.

Use structured-cabling standards when building a new cabling system. Avoid anything proprietary!

Copper Cable FAQs

Written by Julianus Yu

CAT-5, CAT-5e, CAT-6, CAT-7 Patch Cables
FAQs

1. What is the difference between CAT-5, CAT-5e, CAT-6, CAT-7...

The Simple Answer:
CAT-5 is rated to 100M
CAT-5e is rated to 350M
CAT-6 and CAT6e is rated to 550M or 1000M depending on your source
CAT-7 is supposedly rated to 700M or presumably 1000M

Today there is no approved CAT-6 or CAT-7. While some folks are selling products they call Level 6 or 7, there aren't even specs for them, making CAT-5e the best available option. CAT-6 cable is being made with 23 guage conductor wire as opposed to the slightly smaller 24 guage for CAT-5e and also has a separator to handle crosstalk better.

Both CAT-5 and CAT-5e have 100 ohm impedance and electrical characteristics supporting transmissions up to 100 MHz. The differences between CAT-5 and CAT-5e show in all aspects of performance: capacitance, frequency, resistance, attenuation, and NEXT. CAT-5e components were designed with high-speed gigabit Ethernet in mind. While CAT-5 components may function to some degree in a gigabit Ethernet, they perform below standard during high-data transfer scenarios. CAT-5e cables work with ATM and gigabit speed products. Simply, if you are using a 100Mbps switch, get CAT-5e cable instead of CAT-5.

CAT-5e is formally called ANSI/TIA/EIA 568A-5 or simply Cat-5e (the e stands for 'enhanced'). CAT-5e is completely backward compatible with current CAT-5 equipment. The enhanced electrical performance of CAT-5e ensures that the cable will support applications that require additional bandwidth, such as gigabit Ethernet or analog video.

Auto Translate

Chinese | German | Hindi | Indonesian | Japanese

Who is Julianus?

Julianus juli, Jakarta - Indonesia, Project Support - Office Network / Cabling System Infrastructure & Data Center. FREE consultation send me a quotation at - me@julianusjuli.info