List of Illustrations
2
Connections
Figure 2-1
Card configuration ................................................................. 2-3
Figure 2-2
Simplified schematic .............................................................. 2-4
Figure 2-3
Input/output connector terminal designations ........................ 2-5
Figure 2-4
AUDIO IN AUDIO OUT connector terminals ....................... 2-6
Figure 2-5
CONTROL/MEASURE/POWER connector terminals ......... 2-7
3
Operating Considerations
Figure 3-1
Path isolation resistance ......................................................... 3-3
Figure 3-2
Voltage attenuation by path isolation resistance .................... 3-4
Figure 3-3
Ground loops ......................................................................... 3-5
Figure 3-4
Eliminating ground loops ...................................................... 3-5
4
Service Information
Figure 4-1
Channel resistance test connections ....................................... 4-4
Figure 4-2
Contact potential connections ................................................ 4-5
Figure 4-3
Channel-to-channel isolation connections ............................. 4-6
Figure 4-4
Common-mode isolation connections ................................... 4-7
Summary of Contents for 7999-2
Page 1: ...Contains Operating and Servicing Information Model 7999 2 Multiplexer Card Instruction Manual ...
Page 12: ...1 GeneralInformation ...
Page 16: ...2 Connections ...
Page 23: ...3 OperatingConsiderations ...
Page 28: ...4 ServiceInformation ...
Page 36: ...5 ReplaceableParts ...
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Page 44: ...Keithley Instruments Inc 28775 Aurora Road Cleveland Ohio 44139 Printed in the U S A ...