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Contents SDQLCAI-1

ii September 2005

3.7.2 Replacement...........................................................................................................3-5

3.8 Spare and Replacement Parts........................................................................................3-5

3.9 Maintenance Records ...................................................................................................3-6

4 Circuit Description ........................................................................................................4-1

4.1 Isolated Power Supply..................................................................................................4-1

4.2 IOBUS Modem.............................................................................................................4-1

4.3 Multiplexers/Converters...............................................................................................4-1

4.4 CPU ..............................................................................................................................4-2

5 Model Designation .........................................................................................................5-1

5.1 Options .........................................................................................................................5-1

5.2 Accessories...................................................................................................................5-2

6 Specifications..................................................................................................................6-1

6.1 Module Specifications..................................................................................................6-1

6.2 Environmental Specifications.......................................................................................6-1

6.3 Electrical Classification................................................................................................6-3

6.3.1 Approvals...............................................................................................................6-3

6.3.2 CSA Hazardous Locations Precautions .................................................................6-3

Index 5

List of Tables

Table Title Page

2–1 Field Wire Selection ......................................................................................................2-16

2–2 Unterminated I/O Cable Assembly................................................................................2-21

3–1 LED Indications...............................................................................................................3-2

5–1 CAI Options.....................................................................................................................5-1

5–2 CAI Accessories ..............................................................................................................5-2

6–1 CAI Specifications...........................................................................................................6-1

6–2 CAI Environmental Specifications ..................................................................................6-1

6–3 Agency Approvals For CAI.............................................................................................6-3

List of Illustrations

Figure Title Page

1–1 Critical Analog Input Module (CAI) and Associated Hardware .....................................1-2

2–1 CAI Identification Label..................................................................................................2-1

2–2 Marshalling Utility Panel Dimensions.............................................................................2-6

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