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Preface 
Safety Requirements 
Caution:  This device should only be powered by a power source 
which meets Safety Extra Low Voltage (SELV) and LPS (Limited Power 
Source) requirements per UL1950, IEC 950, and EN 60 950.  The power 
source must be certified by the appropriate safety agency for the 
country of installation. 
Caution:  For continued protection against risk of fire, replace only 
with the same type and ratings of fuse. 
Attention: Pour prévenir et vous protéger contre un risque de feu, 
remplacer la fusible avec une autre fusible de même type, seulement. 
Audience 
This manual is written for hardware installer/service personnel, 
system integrators, programmers, and field engineers.