Cisco Cisco Aironet 1522 Lightweight Outdoor Mesh Access Point Guía De Instalación

 interprets the information on the compliance label.

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.

x

З