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Signals 43
Voltages 46
Timing Limits 48
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Interface Chips 49
Short-range Circuits 53
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Using Outputs as a Power Source 56
Regulating the Voltage 57
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Direct Connection 58
Other Unbalanced Interfaces 58#$
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Connector Options 62
Adapters 63
Using Microcontroller Development Boards 65
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Length Limits 67
Surge Protection 69
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Ways to Achieve Isolation 70
About Grounds 70
Power Supply Grounds 72
Optoisolating 75
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Using a Breakout Box 76
Monitoring with a Voltmeter 77
Oscilloscopes and Logic Analyzers 78