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1Security Technology 2007-2007-PICT les 1 Datacommunicatie Systeem 1Systeem 2 datacommunicatie kanaal.

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Presentation on theme: "1Security Technology 2007-2007-PICT les 1 Datacommunicatie Systeem 1Systeem 2 datacommunicatie kanaal."— Presentation transcript:

1 1Security Technology 2007-2007-PICT les 1 Datacommunicatie Systeem 1Systeem 2 datacommunicatie kanaal

2 2Security Technology 2007-2007-PICT les 1 Data communicatie AB AB AB Simplex Half-duplex Full-duplex

3 3Security Technology 2007-2007-PICT les 1 serieel, parallel Bits per seconde (bps) Bytes per (Bps)seconde

4 4Security Technology 2007-2007-PICT les 1 Baud The number of signaling elements that occur each second. The term is named after J.M.E. Baudot, the inventor of the Baudot telegraph code. element bijvoorbeeld 4 niveaus 00 01 10 11 twee bits In dat geval: bit rate = 2 x baud rate

5 5Security Technology 2007-2007-PICT les 1 Multiplexen MultiplexerDemultiplexer

6 6Security Technology 2007-2007-PICT les 1 TDM versus FDM

7 7Security Technology 2007-2007-PICT les 1 Parallel (Strobed) data ready data een strobe is een opgaande of neergaande flank

8 8Security Technology 2007-2007-PICT les 1 Parallel (Handshaked) data Req Ack Req Ack data

9 9Security Technology 2007-2007-PICT les 1 Serieel (bit Synchroon) Shift register Data buffer Serial data Parallel data Shift (transmit) clock Tc receiver PLL

10 10Security Technology 2007-2007-PICT les 1 Clock extraction options rely on (very) accurate clocks bit stuffing Manchester encoding

11 11Security Technology 2007-2007-PICT les 1 Serieel (frame synchroon) (tijdelijk synchroon) idle

12 12Security Technology 2007-2007-PICT les 1 Serieel (asynchroon) Shift register Data buffer Serial data Parallel data Start bit data bit Par bit Stop bit trigger samples (~ byte synchroon)

13 13Security Technology 2007-2007-PICT les 1 Modulatie: AM, FM, PM

14 14Security Technology 2007-2007-PICT les 1 Modem (modulator/demodulator) DTE DCE Data Terminal Equipment Data Communication Equipment V24 of RS 232 V21 … V34

15 15Security Technology 2007-2007-PICT les 1 Nullmodem DTE Data Terminal Equipment

16 16Security Technology 2007-2007-PICT les 1 RS-232 signal Single-ended

17 17Security Technology 2007-2007-PICT les 1 RS-422 Differentiële verbinding

18 18Security Technology 2007-2007-PICT les 1 RS-485 Bussysteem (TRI-state)

19 19Security Technology 2007-2007-PICT les 1 Master slave

20 20Security Technology 2007-2007-PICT les 1

21 21Security Technology 2007-2007-PICT les 1 Integrated Services Digital Network (ISDN) There are two types of ISDN: n Basic Rate Interface (BRI) -- consists of two 64-Kbps B-channels and one D-channel for transmitting control information. n Primary Rate Interface (PRI) -- consists of 23 B- channels and one D-channel (U.S.) or 30 B-channels and one D-channel (Europe).

22 22Security Technology 2007-2007-PICT les 1 ISDN NT1/2 B-kanaal 64 kb D-kanaal 16 kb 2B+1D+48 kb ( interne signalering) = 192 kb

23 23Security Technology 2007-2007-PICT les 1 (Asymmetric) Digital Subscriber Link

24 24Security Technology 2007-2007-PICT les 1 Opdracht n bestudeer hoofdstuk 10

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