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Published byCorinne Beste Modified over 9 years ago
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Network Devices Sritrusta Sukaridhoto
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Network Devices
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Media on PC Ethernet Modem PC Card (WLAN) DVB
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Ethernet - Architecture
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Ethernet [ ] [ ] [ ] Contoh 100BaseT Kecepatan : 10, 100, 1000 Type : Base/Broad Model : 5, 2, T, Fx,
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Ethernet – IEEE 802.3 10Base5 – Thick wire coaxial 10Base2 – thin wire coaxial / cheaper net 10BaseT – Twisted Pair 10BaseF – Fiber Optics 100BaseT – Fast Ethernet
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Ethernet – 10Base5
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Ethernet – 10Base2
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Ethernet – 10BaseT
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NIC Connector type Coaxial Cable Bayonet Nut Connector (BNC) Twisted Pair Cable RJ-45 (8 wire) Fiber Optics SMA connectors
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Apa sih NIC? An Ethernet 10/100 PCI
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COMBO BNC
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PENGKABELAN BNC
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Dummy load Pengkabela n
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Pasang LAN card ke PC
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Modem Allows modems of different vendors to operate together Define How modems operate: Modulation techniques Data compression technique Error detection strategy
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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
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Modem - Connection
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Modem – Internal/External
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PC Card (WLAN) - 1
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PC Card (WLAN) - 2
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PC Card (WLAN) – Indoor Antena
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PC Card – WLAN (802.11) Bypassing last mile
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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).
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DVB – DVB/IP Routing
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DVB - Adaptability
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DVB – DVB Card
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Media Wired Twisted Pair – UTP Coaxial Fiber Wireless Microwave Satellite
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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
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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
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Kabel Twisted-pair Rj-45 connector
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UTP – Straight Cable Wo/O Wg/B Wb/G Wbr/Br
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UTP – Cross Cable Wg/G Wo/B Wb/O Wbr/Br
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Aturan Pengkabelan (1)
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Aturan Pengkabelan (2)
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UTP - Category CategoryMaximum Data RateUsual Application CAT 1Less than 1 MbpsAnalog voice (POTS), Integrated Services Digital Network Basic Rate Interface in ISDN Doorbell wiring CAT 24 MbpsMainly used in the IBM Cabling System for token ring networks CAT 316 MbpsVoice and data on 10BASE-T Ethernet CAT 420 MbpsUsed in 16 Mbps Token Ring Otherwise not used much CAT 5100 Mbps100 Mbps TPDDI (100BASE-T or Fast Ethernet) 1000 Mbps (4 pair)155 Mbps ATM Gigabit Ethernet CAT 5E100 Mbps100 Mbps TPDDI (100BASE-T or Fast Ethernet) 155 Mbps ATM CAT 6200-250 MHzSuper-fast Broadband Applications.
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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
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Jenis Medium Coaxial cable RG-58 (10BASE2) BASEBAND Panjang max tanpa cacat 10 Mbit/s
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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
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FO Connector SC ST
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Microwave – Antenna (1) Omni 2.4GHz 8dBi
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Microwave – Antenna (2) Sectoral 14dBi 180deg
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Microwave – Antenna (3) Sectoral 17dBi 90deg
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Microwave – Antenna (4) Direct (Grid) 2.4 GHz 24dB
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Microwave – Power AMP
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Satellite - Broadband
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Media Comparison
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Cabling Lab Picture
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Multiplexer HUB Switch Bridge Router
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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
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Hub versus Switch
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LAN Hub device
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Hub
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Hub Symbol
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LAN Switch device
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Switch
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Switch Symbol
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Bridge – Access Point (WLAN)
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Bridge Symbol
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Router Connecting different segment Have different interfaces (Ethernet, WAN-Serial, Fiber, etc) Table Routing
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Router
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Router Symbol
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