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Oleh :
Putra Wanda S.Kom.,MTCNA
Teknik Informatika
Fakultas Sains dan Teknologi
Universitas Respati Yogyakarta
2014
Wireless
LAN
Tahukah Anda ??
- Istilah LAN dan WLAN
- Perangkat WLAN Di bawah ini ?
Access Point
Router
Aresster
UTP/STP Cable
POE
Do U
Know
Apa yang anda tau tentang
WIFI ?
- Koneksi tanpa Kabel
- Frekuensi 2.4 Ghz dan 5 Ghz
- Bersifat Half Duplex
- Power Menentukan Gain .
LAN dan WLAN
LAN WLAN
LAN dan WLAN
LAN (Local Area Network).
Jaringan yang dihubungkan satu dengan lainnya
dengan media perantara Kabel.
WLAN :
Jaringan yang dihubungkan menggunakan
menggunakan gelombang radio (Sinyal)
TOPOLOGI WLAN
AD HOC NETWORK
hubungan antar komputer tidak membutuhkan
Access Point
TOPOLOGI WLAN
Infrastructure NETWORK
Hubungan antar komputer dalam jaringan melalui
Access Point.
Contoh Ad Hoc & Infrastructure
Ad Hoc Networks:
- Sharing File Peer To Peer
- Sharing antar host melalui Bluetooth
- dll
Infrastructure Networks:
- Hotspot
- Cellular Network On a BTS
- dll
Apakah LAN dan WLAN
Bisa Dikombinasikan?
Mode Komunikasi WLAN
Disebut : MODE ACCESS POINT
Mode Komunikasi WLAN
MODE ACCESS POINT : Radio Access Point
hanya melayani client dari 1 jaringan wireless
Mode Komunikasi WLAN
MODE Reperater : Jika sinyal Radio Access Point
A tidak dapat menjangkau Client.
Mode Komunikasi WLAN
MODE Bridge : Radio Access Point sebagai
jembatan (Bridge) antar jaringan
WDS
WDS (Wireless Distribution System)
WDS = Cara Untuk Menginterkoneksikan banyak AP
dan memudahkan user untuk berpindah tanpa
mengalami disconnected.
Example ????
Kelebihan dan Kekurangan
Kelebihan WLAN
1. Mobilitas tinggi
2. Kemudahan dan kecepatan instalasi
3. Fleksibel
4. Maintenance kedepan lebih mudah
5. Scalable
Kelebihan dan Kekurangan
Kekurangan WLAN
1. Biaya peralatan mahal
2. Delay yang besar.
3. Banyak sumber interferensi seperti terhalang,
terpantul
4. Kapasitas jaringan Terbatas (Pita Frekuensi)
5. Security Issue
Jaringan WLAN Outdoor
Tahukah anda Satuan Ukuran
dalam WLAN...
 W
 mW
 dB
 dBm
Perbandigan Ukuran
Radio Acess Point
Contoh :
Sebuah Produk AP
Memiliki Spek :
Power : 100wM
Frekuensi 2.4 Ghz
Gain Omni : 5dB
Semakin tinggi Power AP Semakin Jauh Jangkauan Sinyal
Semakin Tinggi Gain Antena Semakin Jauh Pancaran Sinyal
Perangkat WLAN
AP Dlink AP MIKROTIK AP UBNT
TPLINK Router
MIKROTIK
Router
Perangkat WLAN
POE
Anti Petir
Perangkat WLAN
Pigtail
Jumper
Komunikasi Outdoor
Thank You!...

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Wireless LAN