Appendix A
I n s t a l l a t i o n I n s t r u c t i o n s
General Product Philosophy
The AT6n00 has been demonstrated to conform to the EMC, LVD, and Marking directives necessary for CE
compliance when it is installed per the instructions in this appendix. This CE compliance is valid for Serial
Numbers 971101
xxxx
and greater (and for Serial Numbers prior to this if the CE sticker is present on the unit).
It is important to remember that for specific installations, the full protection requirements of the EMC Directive
89/336/EEC need to be met before the system is put into service. This must be verified either by inspection or
by testing of the system. The following installation instructions are intended to assist in ensuring that the
requirements of the EMC directive are met. It may be necessary to take additional measures in certain
circumstances and at specific locations.
These instructions are based on expertise acquired during tests carried out on the AT6n00. It has been shown
that when installed per these instructions, this product can be made to comply with relevant CE standards. It is
important to follow all the installation instructions if an adequate level of compliance is to be achieved. In
some installations, additional measures may be required.
For more information about the Low Voltage Directive (LVD), see 73/23/EEC and 93/68/EEC, published by the
European Economic Community (EEC).
Note: The AT6200-AUX1-DC and AT6400-AUX1-DCversions of the AT6n00 have not been demonstrated to be
CE compliant. Following these installation instructions may improve performance, but does not ensure CE
compliance for the AT6200-AUX1-DC and AT6400-AUX1-DC.
Safety Considerations
The AT6n00 is intended for installation according to the
appropriate safety procedures including those laid down by
the local supply authority regulations. The
recommendations provided are based on the requirements of
the Low Voltage Directive (LVD) and specifically on
EN61010-1. It should be remembered that safety must
never be compromised for the purpose of achieving EMC
compliance. Therefore in the event of a conflict occurring
between the safety regulations and the following
recommendations, the safety regulations always
take precedence.
Environmental Conditions
Pollution Degree: The AT6n00 is designed for
pollution degree 2 of the LVD.
Installation Category: The AT6n00 is designed for
installation category II of the LVD.
Electromagnetic Emission: EN55011, Group 1,
Class A
Susceptibility: EN50082-2
Required Hardware
The AT6n00 requires three specific types of hardware to
meet CE criteria: ferrite absorbers, P-clips, and a clam-
shell clamp. The clam-shell clamp and two ferrite
absorbers are included in the AT6n00 ship kit.
Ferrite Absorber Specifications
The absorbers described in these installation instructions
are made from a low-grade ferrite material which has high
losses at radio frequencies. They therefore act like a high
impedance in this waveband, dissipating unwanted high
frequency energy that could be conducted or radiated into,
or out of, the system.
The recommended components are produced by Parker
Chomerics (617-935-4850) and are suitable for use with
cable having an outside diameter up to 13mm. The
specification is as follows:
Chomerics part #
83-10-A637-1000
Outside diameter
28.5mm
Inside diameter
13.77mm
Length
28.57mm
Impedance at 25MHz
135
Ω
Impedance at 100MHz
210
Ω
Curie temperature
130
°
C
(the device should not be operated near this temperature)
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