Rockwell Automation 1738-EXT1, EXT3 ArmorPoint Extension Units - Manual

1 Publication 1738-IN018A-EN-E - December 2004
Installation Instructions
ArmorPoint Extension Units, Series A
Cat. No. 1738-EXT1 and -EXT3
What Is the ArmorPoint
Extension Unit? Use an ArmorPoint I/O extension unit to extend the backplane to
additional I/O. The 1738-EXT1 is a one-meter bus extension unit. The
1738-EXT3 is a three-meter bus extension unit.
Important User Information Solid state equipment has operational characteristics differing from those of
electromechanical equipment. Safety Guidelines for the Application,
Installation and Maintenance of Solid State Controls (Publication SGI-1.1
available from your local Rockwell Automation sales office or online at
http://www.ab.com/manuals/gi) describes some important differences
between solid state equipment and hard-wired electromechanical devices.
Because of this difference, and also because of the wide variety of uses for
solid state equipment, all persons responsible for applying this equipment
must satisfy themselves that each intended application of this equipment is
acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for
indirect or consequential damages resulting from the use or application of
this equipment.
The examples and diagrams in this manual are included solely for illustrative
purposes. Because of the many variables and requirements associated with
any particular installation, Rockwell Automation, Inc. cannot assume
responsibility or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to
use of information, circuits, equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without
written permission of Rockwell Automation, Inc. is prohibited.
Throughout this manual, when necessary we use notes to make you aware of
safety considerations.
WARNING
Identifies information about practices or circumstances
that can cause an explosion in a hazardous environment,
which may lead to personal injury or death, property
damage, or economic loss.
IMPORTANT
Identifies information that is critical for successful
application and understanding of the product.