Weidmuller WI-I/O-9-U2: Wireless Mesh I/O & Gateway User Manual V1.2.2 - Manual (Page 5)

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Hazardous Location Notices:
This device complies with
94/9/EC
– ATEX Directive
Ex nA IIC T4A, II 3 G,
–40 °C ≤ Ta ≤ +60 °C
WARNING: EXPLOSION HAZARD.
Do not disconnect equipment unless power has been switched off or the area
is known to be non-hazardous.
This equipment is suitable for use in Class I, Division 2, Groups A, B, C and D;
Tamb -40
˚C to +60˚C or non-hazardous locations only.
This equipment shall be installed in accordance with the requirements specified
in Article 820 of the National Electrical Code (NEC), ANSI/NFPA 70-
2011. Section 820-40 of the NEC provides guidelines for proper grounding,
and in particular specifies that the antenna ground (shield) shall be connected
to the grounding system of the building, as close to the point of cable entry as
practical.
This equipment shall be installed in a Restricted Access Location (dedicated
equipment room, service closet, or the like).
The earthing /grounding terminal of the equipment shall be connected to earth
ground in the equipment installation.
“The external power supply installed with this equipment shall be a Listed,
Class 2 power supply, with a rated output between 15 Vdc and 30 Vdc, and
min. 2500mA.”