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WIRING STANDARDS CHANGE - REASONS TO USE A QUALIFIED INSTALLER

Networks change, wiring standards change and so does the wire used to run a network. What you knew about networking last year may no longer be the current standard. Keeping current with the standards of wiring and cable installation is necessary if you want to offer your client a network designed for their hardware. Problems created by poor installation, cable manufactured outside of the current wiring standards and installed by untrained individuals cost businesses millions of dollars in both unproductively and data loss.

The organizations or associations that set wiring standards are groups of professionals that define what the wiring standards are for the evolving networks of today's business world. Manufacturers adhere to those standards by manufacturing cable to meet the cable-performance specifications defined in the wiring standard. Cable designed 5 years ago was made with the standards set at that time and may not necessarily meet the standard for your equipment today. Some of the associations that set the standards are:

If you want to install the cable correctly one of the requirements you must follow is the ANSI/NECA/BICSI-568-2006 standard. This standard describes minimum requirements and procedures for that installation. This standard covers the infrastructure for telecommunications that includes balanced twisted pair copper cabling and optical fiber cabling that will transport telecommunications signals (e.g., voice, data, video). This standard describes the necessity for the work to be done in a “neat and workmanlike manner,” which is also referenced in ANSI/NFPA 70 and , the National Electrical Code® (NEC).

Referenced in Article 800.24 of the National Electric Code it is noted that "Mechanical Execution of Work, as a Fine Print Note that states: Accepted industry practices are described in ANSI/NECA/BICSI-568-2006, Standard for Installing Commercial Building Telecommunications Cabling;..." The 2008 National Electrical Code Standard is the standard for the installation and is also used as a a safety code that is widely used in the USA. This standard also points to ANSI/NECA/BICSI standards as a best practices resource.

CAT 5e ETHERNET OVER TWISTED PAIR

In today's office, most networks use a combination of Cat 5, Cat 5e, Cat 6 and fiber cabling. The installation of those cables must follow the specific standards for the type of cable you are installing. The cable also needs to have been manufactured to the standard you are implementing as well.

Cat 5e cable is an enhanced version of Cat 5 (that is why there is a small "e" after the Cat 5) that adds specifications for far end crosstalk, also known as electronic interference. Known as FEXT and NEXT in the cable readings, this is caused when wires inside the cable are improperly wound or created when they are improperly tested. Continuity testing does not tell you if this exists in the cable, you must use a tester!

CAT 6 or Cat 6a GIGABIT ETHERNET ? Which one do you choose?

If you do not keep current with the cabling standards, you may not know that there other options other than Cat 6. Your network may be installed and obsolete if your contractor does not listen carefully to what your intentions are for your network, causing you to spend money in the wrong direction.

Defined under the IEEE 802.3 standard and TIA/EIA-568-B and formerly known as ANSI/TIA/EIA-568-B.1-2001, -B.2-2001, and -B.3-2001 respectively.

Cat 6 cabling currently has greater and tighter stringent specifications for crosstalk and is less tolerant to cable noise than Cat 5e for it to remain in cable specifications. Cat 6 cable standard provides performance of up to 250 MHz and is suitable for 10BASE-T / 100BASE-TX and 1000BASE-T / 1000BASE-TX (Gigabit Ethernet). Cat 6 also has distance limitations on length if unshielded Cat 6 cable is used. In the Cat 6 cable specification it states that the cable may be made with 22 to 24 but often is made with 23 AWG.

Now that you know all that, you should also know that there is also a Cat 7, yes and even a 7a too. Both Cat 6 of most versions are capable of 10GbaseT ethernet up to distances of 100 meters.

TIA/EIA-568-B CABLING STANDARDS

TIA/EIA, Telecommunications Building Wiring Standards. Now you can see that getting a box of wire at a retailer and throwing it into the ceiling takes a little more knowledge, here are a few other specs and standards that you need to know.

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