TUGAS JARKOM ( Teori )

Anggaran Daya Link

Perencanaan Link LAN Nir-Kabel

Angaran daya ini memperhitungkan seluruh rantai transmisi dari sisitem LAN Nir – Kable , Karena peralatan pengiriman dan penerimaan tidak selalu identik pada kedua sisi, maka perhitungan anggaran link harus dilakukan pada keduanya .Dengan mengunakan Perhitungan Angaran Link diharapkan dapat merancang sebuah LAN nir-kable sehingga di perkirakan apakah radio yang direncanakan bisa bekerja atau tidak.

 

Pada kesempatan ini kami akan melakukan Perencanaan Link LAN Nir – kable dengan Perhitungan Anggaran Link SBB :

* Saya dirumah mempunyai layanan koneksi Internet ke komputer PC/leptop dengan Layanan Internet Speedy telkom sehingga saya bisa browsing dan menikmati layanan internet dengan komputer saya yang berada dirumah . Akan tetapi pada kesempatan ini saya ingin berbagi layanan internet dengan teman saya yang tidak memiliki layanan Internet dirumahnya , padahal dia mempunyai komputer setara dengan saya. Dan Rencana tersebut dapat bisa terlaksana  dengan cara melakukan Perencanaan Link Nir – kable Anggaran Link dengan Perhitungan Sebagai berikut keteranganya :

·       

  Keterangan Lokasi Saya :

o   Nama : Zufar Rijal

o   Nim   : 11.240.0217

o   Lokasi : Kauman Gg 1/3 Pekalongan

·       

  Keterangan Lokasi Teman :

o   Nama : Angget Prio

o   Nim   : 11.240.0269

o   Lokasi : jalan Pangeran Antasari No.8 Pekalongan Timur.

Peralatan dan alat yang di gunakan :

1)      Antena Parabolik        ........................................................................ Rp 140.000,-

2)      Pipa Besi 1/2               ........................................................................Rp 55.000 ,- 

3)      Kabel UTP  (14 m = secara straight line)...........................................Rp 21.000,-

4)      Wireless Router Linksys dd-wrt v23 sp2 ............................................Rp 400.000,-

5)      PC / Laptop ......................................................................................Rp ( sudah ada )

6)      Reflektor antena parabola tv (diameter sekitar 2,8 m ).........................Rp 300.000,-

7)      Kaleng bekes sebagai feeder antena router tersebut .......................... Rp  3.000,-

8)      Pipa paralon 0,5 inci beserta tutup dan pasangan sambungannya. ........Rp  11.000

9)      Kotak plastik makanan , yang tahan panas-dingin, ..............................Rp  10.000,-

10)  adapter nirkabel berbasis USB ...........................................................Rp  20.000,-

Total Keseluruhan Harga Alat adalah ......................................................( Rp  960.000,- )

(*)  Harga sebagian  peralatan Info dari : www.tokobagus.com .

“ Pada Kesempatan ini jarak antara rumah saya dengan teman saya berjarak  15  km dan pemasangan antena dengan ketinggian antena pemancar sekitar 11 meter  dari tanah .  Dengan mengunakan Perhitungan Angaran Link diharapkan kami  dapat merancang sebuah LAN nir-kable dengan sukses , sehingga di perkirakan apakah radio yang direncanakan bisa bekerja atau tidak. 

Komentar  :

Link should work properly if sites are in clear line of sight. Check for fresnell zone and diffraction linitations

Link harus bekerja dengan benar jika situs dalam garis yang jelas terlihat. Periksa fresnell zona dan linitations difraksi.

                                     Batas legal :

System is illegal in Europe (radiated power > 20 dBm) .

Sistem adalah ilegal di Eropa (daya radiasi> 20 dBm).

Catatan :

1.      Untuk mendapatkan link yang sangat andal, dibutuhkan margin paling tidak 10 dB agar bisa mengatasi local fading akibat pantulan. Untuk link yang moderat, dibutuhkan margin 4~6 dB.

2.      Cek daerah Fresnell dan/atau adanya pembatasan difraksi. Bila perlu tambahkan rerugi ekstra. 

3.      Kesalahan polarisasi : tambahkan 3 dB pada margin yang diinginkan jika digunakan antena helical. Tambahkan 30 dB jika ada ketaksepadanan di antara kedua antena (misalnya horisontal dengan vertikal, atau LHCP dengan RHCP.

Contoh Gambaran Simulasi Pembuatan Antena Yang Kami Rencanakan :

 Gambar 1. Linksys WRT54GL package content

                    Gambar 2. Kotak makanan plastik, pipa pralon beserta tutup dan sambungannya.

 Gambar 3. Linksys WRT54GL di dalam box

                                                          Gambar 4. Pasang Feeder

                                           Gambar 5. Tancapkan pada tiang feeder parabola.

Gambar 6. Rapatkan sambungan

Kemudian Taruh Rangaian tersebut pada pipa besi , dan Pastikan semua peralatan terletak dengan baik serta benar pada posisinya agar perencanaan Perencanaan Link LAN Nir-Kabel berhasil dan sukses kemudia setting program di PC / Leptop agar dapat terkoneksi dan berbagi internet .

( Sekian Penjelasan Saya ) Trima Kasih.

Zufar Rijal 11.240.0217

teknik informatika

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Chapter 4 - Connecting to the Internet Through an ISP

Chapter 4 - Connecting to the Internet Through an ISP

Zufar Rijal   11.240.0217

	1. Which definition describes the term Internet? a group of PCs connected together on a LAN a group of PCs connected together by an ISP a network of networks that connects countries around the world a worldwide collection of networks controlled by a single organization 2. What type of connection point is a point of presence (POP)? between a client and a host between two local networks between a computer and a switch between an ISP and a home-based LAN 3. What is the term for the group of high-speed data links that interconnect ISPs? Internet LAN ISP backbone Internet gateways Internet providers Internet backbone 4. Which device can act as a router, switch, and wireless access point in one package? hub bridge modem repeater ISR 5. What are three characteristics of business class ISP service? (Choose three.) fast connections extra web space free Windows upgrade fast connections cheapest cost available to all users free Windows upgrade fast connections extra web space cheapest cost available to all users fast connections cheapest cost available to all users additional e-mail accounts replacement hardware at no cost additional e-mail accounts cheapest cost available to all users fast connections extra web space additional e-mail accounts 6. What is a major characteristic of asymmetric Internet service? Download speeds and upload speeds are equal. Download speeds are slower than upload speeds. Upload speeds and download speeds are different. Upload speeds and download speeds are irrelevant. 7. Which three elements are required to successfully connect to the Internet? (Choose three.) an IP address file sharing enabled a network connection a network connection server services enabled access to an Internet service provider access to an Internet service provider an address obtained directly from the RIR server services enabled an IP address a network connection access to an Internet service provider file sharing enabled server services enabled an address obtained directly from the RIR 8. What term describes each router through which a packet travels when moving between source and destination networks? NOC ISP hop segment 9. What does the tracert command test? NIC functionality the ISP bandwidth the network path to a destination the destination application functionality 10. What type of end-user connectivity requires that an ISP have a DSLAM device in their network? analog technology cable modem technology digital subscriber line technology wireless technology 11. Why would an ISP require a CMTS device on their network? to connect end users using cable technology to connect end users using analog technology to connect end users using wireless technology to connect end users using digital subscriber line technology 12. Refer to the graphic. What type of cabling is shown?   STP UTP coax fiber 13. Refer to the graphic. What type of cabling is shown? STP UTP coax fiber 14. Which two places are most appropriate to use UTP cabling? (Choose two.) between buildings in a home office network in a home office network where EMI is an issue where EMI is an issue in a cable TV network in a cable TV network inside a school building inside a school building in a manufacturing environment with hundreds of electrical devices in a home office network inside a school building 15. What does adherence to cabling standards ensure? data security no loss of signal no electromagnetic interference reliable data communications 16. Refer to the graphic. What type of cable is shown? crossover eight coax channels multimode fiber single-mode fiber straight-through 17. What connector is used to terminate Ethernet unshielded twisted pair (UTP) cabling? ST BNC RJ-11 RJ-45 18. Which two characteristics describe copper patch panels? (Choose two.) uses RJ-11 jacks uses RJ-45 jacks uses RJ-45 jacks supports only data transmissions supports only data transmissions allows quick rearrangements of network connections allows quick rearrangements of network connections uses RJ-45 jacks supports only data transmissions forwards transmissions based on MAC addresses 19. What are two advantages of cable management? (Choose two.) requires no preplanning aids in isolation of cabling problems aids in isolation of cabling problems protects cables from physical damage protects cables from physical damage provides compliance with future standards provides compliance with future standards provides a short-term solution for cable installation 20. What are two common causes of signal degradation when using UTP cabling? (Choose two.) installing cables in conduit having improper termination having improper termination losing light over long distances losing light over long distances installing low quality cable shielding installing low quality cable shielding using low quality cables or connectors having improper termination using low quality cables or connectors 21. What are three commonly followed standards for constructing and installing cabling? (Choose three.) pinouts cable lengths connector color connector color connector types cost per meter (foot) pinouts cable lengths connector types cable lengths connector types tensile strength of plastic insulator tensile strength of plastic insulator pinouts connector color

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