Rockwell Automation 1770-KF3 DH-485 Communication Interface User Manual - Manual (Page 2)

Because of the variety of uses for this product and because of the differences between solid
state products and electromechanical products, those responsible for applying and using
this product must satisfy themselves as to the acceptability of each application and use of
this product. For more information, refer to publication SGI-1.1 (Safety Guidelines For
The Application, Installation And Maintenance of Solid State Control).
The illustrations, charts, and layout examples shown in this manual are intended solely
to illustrate the text of this manual. Because of the many variables and requirements
associated with any particular installation, Allen-Bradley Company cannot assume
responsibility or liability for actual use based upon the illustrative uses and applications.
No patent liability is assumed by Allen-Bradley Company with respect to use of
information, circuits, equipment, or software described in this text.
Reproduction of the contents of this manual, in whole or in part, without written permission
of the Allen-Bradley Company is prohibited.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
This digital apparatus does not exceed the Class A limits for radio noise emissions from
digital apparatus set out in the Radio Interference Regulations of the Canadian Department
of Communications. Operation in a residential area may cause unacceptable interference to
radio and TV reception requiring the owner or operator to take whatever steps are
necessary to correct the interference.
Le présent appareil numérique n 'émet pas de bruits radioélectriques dépassant les limites
applicables aux appareils numériques de la classe A prescrites dans le Règlement sur
le brouillage radioélectrique édicté par le ministère des Communications du Canada.
L
'exploitation faite en milieu résidential peut entraîner le brouillage des réceptions radio et
télé, ce qui obligerait le propriétaire ou l
'opérateur à prendre les dispositions nécessaires
pour en éliminer les causes.
Throughout this manual, we make notes to alert you to possible injury to people or damage
to equipment under specific circumstances.
WARNING: Tells readers where people may be harmed if
procedures are not followed properly.
CAUTION: Tells readers where machinery may be damaged or economic
loss can occur if procedures are not followed properly.
Warnings and Cautions:
identify a possible trouble spot
tell what causes the trouble
give the result of improper action
tell the reader how to avoid trouble
WARNING: No user serviceable parts or adjustments inside module.
Refer servicing to qualified personnel.

1991 Allen-Bradley Company, Inc.
IBM and AT are registered trademarks of the International Business Machine Corporation.
PLC is a registered trademark of Allen-Bradley Company, Inc.
Important User Information
Statement of Compliance
with Federal
Communications
Commission
Statement of Compliance
with Canadian Department
of Communications
Avis de Conformité aux
normes du ministère des
Communications du Canada
Warning and Caution
Symbols