หน่วยที่ 4

ประเภทของระบบเครือข่าย

4.1 ( Personal Area Network: PAN )4.2 ( Local Area Network: LAN ) ( homenetwork ) 2 -

4.3 (Metropolitan Area Network: MAN)FDDI (Fibre Data Distributed Interface) ( Campus Area Network: CAN ) 100 Mbps 100 Ring 100

4.4 (Wide Area Network: WAN) WAN1 . (private network)2. (PDN: public data network)(VAN: Value Added Network) WAN (third party)

1) - / (client-server network)2) Peer- to-Peer network: P2P network ) eDonkey, BitTorrent Lime Wire

4.5 CAN CAN Controller Area Network ( 2 )CAN , ISO 11898. 2, CAN, Controller Area Network , , - , CANopen , , ,(Off-road vehicle) ,Controller Area Network ( Esprit project) Bosch, 1995, ( CiA) , , CAN CAN Application Layer (CAL), 4CANopen (CiA DS 301) CANopen CAN bit-timing, -, ( Real time data) ,(Process Data Objects(PDO)) , ( Service Data Objects(SDO)) ( Special functions), ( Time Stamp),(Sync message), ( Emergency message) ( Boot-upmessage), (NMT) (Error Control)

4.6 ( Internet) “International network” “InterConnection network” ( protocol)(Internet) 1. (E-mail) IP 2. 3. 4. 5. 6. 7. 8.4.7 (intranet)

4.8