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USB 3.0 Finally Arrives

When you're in front of your PC, waiting for something to transfer to removable media, that's when seconds feel like minutes, and minutes feel like hours. And data storage scenarios such as that one is where the new SuperSpeed USB 3.0's greatest impact will be felt first. As of CES, 17 SuperSpeed USB 3.0-certified products were introduced, including host controllers, adapter cards, motherboards, and hard drives (but no other consumer electronics devices). Still more uncertified USB 3.0 products are on the way, and they can't get here fast enough.

Future-Proofing of UTP & Optical Fiber

Written by Julianus Yu

The common networking technologies today (Ethernet, Token Ring, FDDI, and ATM) can all use either UTP or optical-fiber cabling, and IT professionals are faced with the choice. If you believe the hype from some cabling vendors, installing their particular cable and components will guarantee that you won’t have to ever update your cabling system again.

Today, decision-makers who must choose between Category 5e and 6 cabling components are thinking about future-proofing. Deciding whether to use optical fiber adds to the complexity. Here are some of the advantages of using optical fiber:

Networking Architechture Categories

Written by Julianus Yu

Technically, when you begin the planning stages of a new cabling installation, you should not have to worry about the types of applications used. The whole point of structured cabling Standards such as ANSI/TIA/EIA-568-B and ISO/IEC 11801 is that they will support almost any networking or voice application in use today.

The network’s topology refers to the physical layout of the nodes and hubs that make up the network. Choosing the right topology is important because the topology affects the type of networking equipment, cabling, growth path, and network management.

Common Codes and Elements Defined by ISO/IEC 11801

Written by Julianus Yu

Differences between ANSI/TIA/EIA-568-B and ISO/IEC 11801 include the following:

ISO/IEC 11801 allows for an additional media type for use with backbone and horizontal cabling and 120-Ohm UTP.

The term transition point is much broader in ISO/IEC 11801; it includes not only transition points for under-carpet cable to round cable (as defined by ANSI/TIA/EIA-568-B), but also consolidation-point connections.

Here is some Element Defined by ISO/IEC 11801

Specifies Design Requirements for Backbone Cabling

Written by Julianus Yu

ANSI/TIA/EIA-568-B specifies additional design requirements for backbone cabling, some of which carry specific stipulations, as follows:

Grounding should meet the requirements as defined in ANSI/TIA/EIA-607, the Commercial Building Grounding and Bonding Requirements for Telecommunications.

Care must be taken when running backbone cables to avoid sources of electromagnetic interference or radio-frequency interference.
Read more: Specifies Design Requirements for Backbone Cabling

Standard of Structured Cabling System Areas

Written by Julianus Yu

The ANSI/TIA/EIA-568-B Standard breaks structured cabling into seven areas. They are the horizontal cabling, backbone cabling, the work area, telecommunications rooms, equipment rooms, entrance facility (building entrance), and Administration.

Horizontal Cabling
Horizontal cabling, is the cabling that extends from telecommunications rooms to the work area and terminates in telecommunications outlets (information outlets or wall plates). Horizontal cabling includes the following:

Cable from the patch panel to the work area
Telecommunications outlets
Cable terminations
Cross-connections (where permitted)
A maximum of one transition point

New Trend of Structured Cabling and Standarization

Written by Julianus Yu

Typical business environments and requirements change quickly. Companies restructure and reorganize at alarming rates. In some companies, the average employee changes work locations once every two years. Each time, the telephone, both networked computers, a VAX VT-100 terminal, and a networked printer had to be moved. The data and voice cabling system had to support these reconfigurations quickly and easily. Earlier cabling designs would not have easily supported this business environment.

External Interference That Can Interfere With Data Transmission

Written by Julianus Yu

One hindrance to transmitting data at high speed is the possibility that the signals traveling through the cable will be acted upon by some outside force. Though the designer of any cable, whether it’s twisted pair or coaxial, attempts to compensate for this, external forces are beyond the cable designer’s control.

Importance About Noise (Signal Interference)

Written by Julianus Yu

Controlling noise is of major importance to cable and connector designers because uncontrolled noise will overwhelm the data signal and bring a network to its knees. Twisted-pair cables utilize balanced signal transmission. The signal traveling on one conductor of a pair should have essentially the same path as the signal traveling the opposite direction on the other conductor.