Rockwell Automation 1797-Series ControlNet Ex Media Plannng Installation Manual - Manual (Page 50)

Publication CNET-IN003A-EN-P - January 2006
3-8 Install a ControlNet Ex Media System
Ex Directive
This product is tested to meet the Council Directive 94/9 EC (ATEX
100a) Equipment and Protective Systems Intended for Use in
Potentially Explosive Atmospheres by applying the following
standards:
•
EN50014:1992, Electrical Apparatus for Potentially Explosive
Atmospheres
•
EN50020:1994, Electrical Apparatus for Potentially Explosive
Atmospheres - Intrinsic Safety “i”
•
EN50039:1980, Electrical Apparatus for Potentially Explosive
Atmospheres - Intrinsically-safe Electrical Systems “i”
•
pr EN50284:1997, Special requirements for construction, test,
and marking of electrical apparatus of equipment group II,
category 1 G
Inputs/Outputs
Do not apply any non-intrinsically-safe signals to the fiber modules.
When you use an intrinsically-safe electrical apparatus according to
EN50020, the European directives and regulations must be followed.
Select a Fiber Repeater Hub Mounting Location
The fiber repeater hub should be mounted:
•
so that air can flow in and out of the air holes on the top and
bottom of the coax repeater.
For proper ventilation, be certain that there is a minimum of 5.1
cm (2 in.) from surrounding equipment.
•
in a NEMA enclosure to provide protection from dust, moisture,
or corrosive atmospheres to a grounded metal plate, if possible.
ATTENTION
Be certain that the adapter and fiber modules are
secured together with DIN-rail anchors. Failure to do
so may result in the loss of communications or cause
damage to the modules.