To keep users safe, always read and follow all safety 
warnings provided with each of the instruments in your 
system.
Connect
•  Make sure all connections are behind a locked cabinet 
door or other barrier. This protects the system operator 
from accidentally removing a connection by hand and 
exposing hazardous voltages. Use high-reliability, fail-
safe interlock switches to disconnect power sources 
when a test xture cover is opened.
•  Where possible, use automatic handlers so operators 
are not required to access the DUT or other potentially 
hazardous areas.
•  Provide training to all users of the system so they 
understand all potential hazards and know how to protect 
themselves from injury.
•  During power up in many systems, the outputs may be in 
an unknown state until they are properly initialized. Make 
sure the design can tolerate this situation without causing 
operator injury or hardware damage.