G4 Digital I/O Family Data Book 1
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Welcome to the G4 Digital I/O
Family Data Book
Introduction
Generation 4 digital I/O, introduced by Opto 22 in 1989, provides increased density over older modules, while
maintaining single-channel flexibility. LEDs and fuses are generally on the modules rather than the rack to make them
visible and easy to service. The G4 digital I/O family includes a wide variety of modules, mounting racks, and
accessories to meet the needs of your system.
What’s In This Book
The G4 Digital I/O Family Data Book pulls together information on all Generation 4 digital I/O family products. This
same information can be found in individual product data sheets; it is brought together here for your convenience.
This book includes the following:
Generation 4 Digital I/O Mounting Racks—Choose your mounting rack from the table on page 4, then see detailed
drawings and specifications on the following pages.
Generation 4 Digital I/O Integral Racks—Detailed drawings and specifications for a special group of rack products with
I/O circuitry permanently integrated.
Generation 4 Digital I/O Modules—See the table on page 33 for an overview of all G4 modules. Detailed drawings
and specifications follow.
Generation 4 Digital I/O Accessories—Find details on G4 accessories, including adapter card, cables and
connectors, fuses, and jumper strap.
Appendix A: Designing Custom I/O Mounting Racks—Includes helpful information for customers who are
designing their own mounting systems for Generation 4 digital I/O modules.
Appendix B: Wiring Diagrams—Examples for mapping field wiring to mounting racks for each type of module that
can be plugged into the rack.
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