4    FLEX I/O DC Input, Output, and Input/Output Analog Modules 
Publication 1794-IN106D-EN-E - January 2014
WARNING: If you insert or remove the module while backplane power is on, 
an electrical arc can occur. This could cause an explosion in hazardous 
location installations. Be sure that power is removed or the area is 
nonhazardous before proceeding.
WARNING: If you connect or disconnect wiring while the field side power is 
on, an electrical arc can occur. This could cause an explosion in hazardous 
location installations. Be sure that power is removed or the area is 
nonhazardous before proceeding.
ATTENTION: This product is grounded through the DIN rail to chassis 
ground. Use zinc plated yellow-chromate steel DIN rail to assure proper 
grounding. The use of other DIN rail materials (such as aluminum or plastic) 
that can corrode, oxidize, or are poor conductors, can result in improper or 
intermittent grounding.
ATTENTION: To comply with the CE Low Voltage Directive (LVD), all 
connections to this equipment must be powered from a source compliant 
with the following:
Safety Extra Low Voltage (SELV) or Protected Extra Low Voltage (PELV).