Structured Cabling Evolving for High-Speed Information Transport Systems

By Pat Boardman

The technology of Local Area Network (LAN) transfer speeds has shown to increase by one order of magnitude every ten years; in the mid-80s the very slow 10 Megabits per second advanced to 100 Megabits per second in the mid-90s, then up to 1 Gigabit per second around 2000. Standards are being written in 2011 for over 100 Gigabits per second. The new classes of cabling and other components to be used in carrying data are designed and manufactured when the application exists or is emerging. Applications of this kind are often called "killer applications" which legitimize the design of necessary hardware components. Most Local Area Networks are connected by Ethernet cabling; the most common example would be in a business where all departments need the capability to work with customer files; being linked together in a network allows those work stations to use the same programs and data updates at the same time. The advent of networks within offices was a quantum leap in terms of efficiency, allowing rapid growth, higher sales, and faster processing of orders. Before 1991 communications and computer cabling was not standardized; it was provided by different vendors with different specifications, resulting in widespread confusion. The need for generic cabling systems was satisfied by the creation of a standards body given a lengthy name - the Telecommunication Industry Association/Electronic Industry Alliance, (acronym TIA/EIA) that issue specifications and standards for structured cabling systems. The common economical medium for cabling for commercial buildings had formerly been unshielded twisted-pair (UTP) cable systems with a top band width frequency of 16 MHz, primitive by 2011 standards. Ethernet came along as a just-in-time innovation. Most Local Area Networks are connected by Ethernet cabling; the most common example would be in a business where all departments need the capability to work with customer files; being support the higher demands of video, voice, and storage. Category 5 UTP cabling, known as CAT 5 is the standard for the exponentially higher speeds required. In 2002 the 10 Gigabit Ethernet standard was published. In data centers there is an ever-growing need for technologies to increase speed of transmission so higher classes of cable are being designed to connect servers of today and to prepare for the next generation of protocols for data transmission; in July of 2010 the killer application was Ethernet 40 to 100 Gigabits per second and a set of standards was published for cabling to support it, entitled the IEEE 802.3ba standard. The 10BASE-T Ethernet would use Class EA Shielded power cable with polyvinyl insulated Cu Conductor. The rate of groundbreaking changes in the design and manufacture of computer wiring is so phenomenal that soon there will be cell phone-sized supercomputers operating with nanoscale level wiring one thousandth the width of a human hair. Microsoft founder Bill Gates predicted that we would have infinite bandwidth in only a few years. The challenges faced by cabling limitations would have to be addressed to handle the transfer speeds so the medium selected will have to be chosen for not only effectiveness, but for practical affordability. Many set-ups require expensive materials and highly-specialized technicians so they may be beyond of the financial reach of many companies. Pat Boardman is an SEO Consultant for Computation, a Toronto cabling systems and data destruction company.

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Profil Pelatih Baru PERSIB: Drago Mamic

Persib Bandung yang memilik julukan Maung Bandung akhirnya menjatuhkan pilihan pada pelatih asing asal Kroasia Drago Mamic. Persib menjatuhkan pilihan pada Drago Mamic bukan tanpa alasan, sebelumnya Manajemen Persib lebih mengkhususkan pelatih lokal berkualitas untuk melatih skuad Persib, tapi tidak menemukan karena pelatih lokal banyak yang masih terikat kontrak oleh klub klub lain. Drago Mamic jadi pilihan karena sepak terjang kepelatihannya dianggap mampu membawa Persib untuk menggondol mahkota Liga Indonesia yang sudah lama tidak digenggam. Berikut profil Drago Mamic pelatih baru Persib Bandung

 

Persib Bandung awalnya lebih mengutamakan pelatih lokal. Namun Persib akhirnya menunjuk pelatih asal Kroasia Drago Mamic sebagai pelatih anyarnya sekaligus mengakhiri teka-teki pelatih Maung bandung musim depan.

Lalu, bagaimana dengan sepak terjang Drago? Drago pernah menukangi sejumlah klub di Cina, Malaysia dan India. Hal itulah yang juga menjadi pertimbangan utama direksi Persib untuk menunjuk pelatih 58 tahun ini.

Sebelum ke Asia, Drago juga sempat dipercaya menangani timnas Kroasia U-17 selama enam tahun (1990-1996). Petualangannya di Asia dimulai ketika menerima pekerjaan sebagai pelatih klub Liga Super Cina, Quanxing - Cheng Du pada 1999.

Drago juga sempat dipercaya masuk staf kepelatihan timnas Kroasia pada 1996 yang saat itu ditangani pelatih legendaris Kroasia, Miroslav Blazevic.

"Kalau dilihat dari karier kepelatihannya memang cukup bagus. Ini jadi salah satu pertimbangan kami untuk mengontraknya,” jelas manajer Persib, Umuh Muchtar kepada VIVAnews.com.

Meski Persib tak memiliki catatan bagus selama ditangani pelatih asing. Namun, Mamic diharapkan bisa membawa Maung Bandung mengakhiri paceklik gelar juara yang sudah berlangsung lebih dari satu dekade. Persib terakhir kali meraihnya pada Liga Indonesia 1994/1995.

Pelatih asing sebelumnya yang pernah menangani Persib selalu berakhir dengan pemecatan. Salah satunya, Marek Andrej Slediazowski (Polandia) yang menorehkan catatan buruk setelah Persib tak pernah meraih kemenangan dalam 12 laga secara beruntun pada Ligina 2003.

Lalu ada Arcan Iurie (Moldova) yang dipecat pada musim keduanya menangani Persib di Liga Indonesia XIII. Begitu juga dengan dua nama pelatih asing terakhir yakni Darko Janackovic (Perancis) yang dipecat sebelum kompetisi musim lalu dimulai dan penggantinya Jovo Cuckovic (Serbia) pun akhirnya harus lengser ditengah kompetisi dan digantikan Daniel Roekito.

BIODATA
Nama : Drago Mamic
Tanggal Lahir : Valjevo, 25 Mei 1953
Kebangsaan : Kroasia
Bahasa : Inggris, perancis, Rusia
Lisensi Kepelatihan : UEFA Pro Coach Heducation Diploma Universitas Football

Karier Kepelatihan :
1990-1996 Pelatih tim nasional junior Kroasia
1996 Asisten pelatih timnas kroasia
1997-1998 Pelatih kepala, NK ORIJENT
1999-2000 Pelatih kepala Quanxing - Cheng Du (Cina)
2000-2003 Pelatih kepala Dalian Shide (Cina)
2003-2006 Pelatih kepala Guang Zhou
2007-2008 Pelatih kepala Sabah FC (Malaysia)
2009-2010 Pelatih kepala tim nasional Myanmar
2010-2011 Pelatih kepala Churchill Brothers (India)
(bola.vivanews.com)

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