Siemens SIMATIC RS 485 Manual page 26

Technical data
6.1 General technical data
Test symbols and their significance
The test symbols and their meaning are described in the following section.
CE Label
The S7-300 automation system satisfies the requirements and protection goals of the
following EC directives, and conforms with the harmonized European standards (EN) for
programmable logic controllers announced in the Official Journals of the European
Community:
● 2006/95/EC "Electrical Equipment Designed for Use within Certain Voltage Limits" (Low-
● 2004/108/EC "Electromagnetic Compatibility" (EMC Directive)
● 94/9/EC "Equipment and protective systems intended for use in potentially explosive
The EC declaration of conformity is held on file available to competent authorities at:
Siemens AG
Automation & Drives Group
Industry Sector I IA AS R&D DH A
P.O. Box 1963
92209 Amberg, Germany
You can also download this under the keyword "Declaration of conformity" on the Internet.
UL certification
Underwriters Laboratories Inc. complying with
● UL 508 (Industrial Control Equipment)
CSA approval
Canadian Standards Association to
● C22.2 No. 142 (Process Control Equipment)
or
26
Voltage Directive)
atmospheres" (Explosion Protection Directive)
RS 485 Repeater
Manual, 02/2011, A5E03382072-01