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Network Devices. Sritrusta Sukaridhoto. Network Devices. Media on PC. Ethernet Modem PC Card (WLAN) DVB. Ethernet - Architecture. Ethernet. [ ] [ ] [ ] Contoh 100BaseT Kecepatan : 10, 100, 1000 Type : Base/Broad Model : 5, 2, T, Fx,. Ethernet – IEEE 802.3.

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Network Devices

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Network Devices

Sritrusta Sukaridhoto


Network Devices


Media on PC

  • Ethernet

  • Modem

  • PC Card (WLAN)

  • DVB


Ethernet - Architecture


Ethernet

  • [ ] [ ] [ ]

    • Contoh 100BaseT

  • Kecepatan : 10, 100, 1000

  • Type : Base/Broad

  • Model : 5, 2, T, Fx,


Ethernet – IEEE 802.3

  • 10Base5 – Thick wire coaxial

  • 10Base2 – thin wire coaxial / cheaper net

  • 10BaseT – Twisted Pair

  • 10BaseF – Fiber Optics

    100BaseT – Fast Ethernet


Ethernet – 10Base5


Ethernet – 10Base2


Ethernet – 10BaseT


NIC Connector type

  • Coaxial Cable

    • Bayonet Nut Connector (BNC)

  • Twisted Pair Cable

    • RJ-45 (8 wire)

  • Fiber Optics

    • SMA connectors


Apa sih NIC?

  • An Ethernet 10/100 PCI


BNC

COMBO


PENGKABELAN BNC


Dummy load

Pengkabelan


Pasang LAN card ke PC


Modem

  • Allows modems of different vendors to operate together

  • Define How modems operate:

    • Modulation techniques

    • Data compression technique

    • Error detection strategy


Modem – Analog vs Digital

  • Analog

    • Infinite number of levels

    • Conform to voice pattern

    • Times from highest to lowest and back to the highest point in one second is the frequency

    • Can be transmitted over long distance

  • Digital

    • Only two levels (high and low)

    • Conforms to how computers operate

    • Cannot transmitted over long distance


Modem - Connection


Modem – Internal/External


PC Card (WLAN) - 1


PC Card (WLAN) - 2


PC Card (WLAN) – Indoor Antena


PC Card – WLAN (802.11)

  • Bypassing last mile


DVB – DVB/IP Tech

  • The Digital Video Broadcast over Internet Protocol (DVB/IP) system is functionally an IP-over-Ethernet simplex satellite service that incorporates frame-relay type traffic management. At its core, DVB is a modem-on-a-chip, plus an intelligent multiplexer. The antenna is typically a CATV dish, 2.4 - 3.8 meters in diameter (for C-band), or 0.6 -1.8 meters (for Ku-band).


DVB – DVB/IP Routing


DVB - Adaptability


DVB – DVB Card


Media

  • Wired

    • Twisted Pair – UTP

    • Coaxial

    • Fiber

  • Wireless

    • Microwave

    • Satellite


Twisted Pair

  • Two wired wrapped in a twisted fashion

    • Designed to reduce cross-talk due inductance

    • Still subject to interference from stray signal

  • Primarily used for local loop connections and LANs

  • Comparatively narrow bandwidth


UTP – Unshielded Twisted Pair

  • Pair 1

    • White/blue

    • Blue

  • Pair 2

    • White/Orange

    • Orange

  • Pair 3

    • White/Green

    • Green

  • Pair 4

    • White/Brown

    • Brown

  • RJ45 Connector


Kabel Twisted-pair

Rj-45 connector


UTP – Straight Cable

Wo/O Wg/B Wb/G Wbr/Br


UTP – Cross Cable

Wg/G Wo/B Wb/O Wbr/Br


Aturan Pengkabelan (1)


Aturan Pengkabelan (2)


UTP - Category


Coaxial

  • Center lead conducts the signal

    • Protected by insulation and braded wire

  • Used mostly for television and connections to antenna

  • Larger Bandwidth but large in size


Jenis Medium

Panjang max tanpa cacat

Coaxial cable

RG-58 (10BASE2)

10 Mbit/s

BASEBAND


Fiber Optical

  • Signal transmitted by photos rather than electrons

  • Dramatically higher bandwidth

  • Used mostly for backbone communication connections, very high speed LANs and fast network connections


SC

ST

FO Connector


Microwave – Antenna (1)

  • Omni

  • 2.4GHz 8dBi


Microwave – Antenna (2)

  • Sectoral

  • 14dBi 180deg


Microwave – Antenna (3)

  • Sectoral

  • 17dBi 90deg


Microwave – Antenna (4)

  • Direct (Grid)

  • 2.4 GHz 24dB


Microwave – Power AMP


Satellite - Broadband


Media Comparison


Cabling Lab Picture


Multiplexer

  • HUB

  • Switch

  • Bridge

  • Router


Hub versus Switch

  • Hub provide connection to all ports (i.e. in one port and out all other ports).

    • Passive hub – no signal regeneration

    • Active hub – provide signal regeneration

  • Switch direct the message from appropriate port (directs a message from the input port to the desired output port).

    • More expensive but better bandwidth utilization


Hub versus Switch


LAN Hub device


Hub


Hub Symbol


LAN Switch device


Switch


Switch Symbol


Bridge – Access Point (WLAN)


Bridge Symbol


Router

  • Connecting different segment

  • Have different interfaces (Ethernet, WAN-Serial, Fiber, etc)

  • Table Routing


Router


Router Symbol


  • Login