vii
+# "
How a Wire Picks Up Noise 132
Twisted-pair Cable 133
Selecting Cable 133
3
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-
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Ensuring a Common Ground 134
Isolated Lines 137
4
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Adding a Repeater 141
Implementing a Star Topology 141',
-
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Using a Carrier Frequency 146
Spread Spectrum Technology 147
Ensuring Reliable Transfers 147
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Transmitters and Receivers 148
IrDA 149
/
5
Complying with Regulations 149
Choosing an RF Band 150
Implementing a Link 151
Using Other RF Standards 152).
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##
3
*
Finding Ports 156
Opening a Port 156
Timeouts 160
Receive Threshold 161
Closing a Port 161
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Transferring Bytes 167
Transferring Text 170