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Cisco Aironet 1520 Series Outdoor Mesh Access Point Mounting Instructions
78-18269-04
Installing the Access Point in Hazardous Locations
Table 4
interprets the information on the compliance label.
Table 4
Interpreting the Hazardous Compliance Label
Label Marking
Description
Class I, Division 2,
Groups A, B, C, D
Defines the environment in which the access point can be used:
•
Class I—Environment containing flammable gases, vapors, or
liquids
•
Division 2—Environmental classification used by the U.S. and
Canada
•
Groups A, B, C, D—Gas identification for the U.S. and
Canada:
–
A—Acetylene
–
B—Hydrogen
–
C—Ethylene
–
D—Propane
Class I, Zone 2, Group II
Defines the environment in which the access point can be used:
•
Class I—Environment containing flammable gases, vapors, or
liquids
•
Zone 2—Environment classification used in North America
•
Group II—Gas identification for Zone II, which includes:
–
IIa—Propane
–
IIb—Ethylene
–
IIc—Acetylene & Hydrogen
II 3 G Ex nA II T5
Defines the environments in which the access point can be used in
the European Union (EU):
•
Ex—EU explosive atmospheres symbol
•
II—Surface (non-minint) equipment
•
3—Equipment category, product designed to be capable of
keeping within its operational parameters stated by the
manufacturer based upon a normal level of protection for its
intended use, considering areas in which explosive
atmospheres caused by mixtures of air and gasses, vapors, and
mists are unlikely to occur and if they do occur, do so
infrequently for a short period of time only.
•
G—Type of flammable substances; gas/vapor/mist
•
Ex nA II T5—This marking is the same as the AEx line except
for it is for the EU Ex certification.
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