Table of Contents
1
General Information
Introduction ................................................................................ 1-2
Feature overview ........................................................................ 1-2
Warranty information ................................................................. 1-2
Manual addenda ......................................................................... 1-2
Safety symbols and terms .......................................................... 1-3
Specifications ............................................................................. 1-3
Unpacking and Inspection .......................................................... 1-3
Inspection for damage ......................................................... 1-3
Handling precautions .......................................................... 1-3
Shipment contents ............................................................... 1-4
Instruction manual .............................................................. 1-4
Repacking for shipment ...................................................... 1-4
Recommended connectors ......................................................... 1-4
2
Connections
Introduction ................................................................................ 2-2
Handling precautions ................................................................. 2-2
Card configuration ...................................................................... 2-3
Card layout .......................................................................... 2-3
Simplified schematic ........................................................... 2-4
Card connections ........................................................................ 2-5
Input/output connectors ...................................................... 2-5
AUDIO IN and AUDIO OUT connector ............................ 2-6
CONTROL/MEASURE/POWER connector ...................... 2-7
Relay power and control ............................................................ 2-7
3
Operating Considerations
Introduction ................................................................................ 3-2
Maximum signal considerations ................................................ 3-2
Relay power and control ............................................................ 3-2
Switching considerations ........................................................... 3-2
Keeping connectors clean ................................................... 3-2
Path isolation ....................................................................... 3-3
Insertion loss ....................................................................... 3-4
Crosstalk ............................................................................. 3-4
RFI/EMI .............................................................................. 3-4
Ground loops ....................................................................... 3-5
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 ...
Page 39: ......
Page 40: ......
Page 41: ......
Page 42: ......
Page 44: ...Keithley Instruments Inc 28775 Aurora Road Cleveland Ohio 44139 Printed in the U S A ...