data communication

1. Figure 6-14
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DB-37 and DB-9 Connectors

2. RS-423: Unbalanced Mode
Figure 6-15
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3. RS-422: Balanced Mode
Figure 6-16
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4. Canceling Noise
Figure 6-17
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5. DB-15 Connector
Figure 6-18
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6. Figure 6-19
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Modem

7. Bandwidth for Telephone Line
Figure 6-20
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8. Baud Rate for Half-Duplex ASK
Figure 6-21
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9. Baud Rate for Full-Duplex ASK
Figure 6-22
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10. Baud Rate for Half-Duplex FSK
Figure 6-23
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11. Baud Rate for Full-Duplex FSK
Figure 6-24
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12. Bell Modems
Figure 6-25
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13. Bell Modems
Figure 6-25-continued
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14. ITU Modems
Figure 6-26
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15. ITU Modems
Figure 6-26-continued
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16. V.22bis 16-QAM Constellation
Figure 6-27
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17. V.32 Constellation
Figure 6-28
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18. V.33 ConstellationFigure 6-29
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