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SWITCH 4
TOP SWITCH
SWITCH 3
ABOVE 2ND SWITCH
SWITCH 2
ABOVE 1ST SWITCH
SWITCH 1
BOTTOM SWITCH
INTRINSICALLY
SAFE BARRIERS
SW 4
TOP
SWITCH
SW 3
ABOVE 2ND
SWITCH
SW 2
ABOVE 1ST
SWITCH
SW 1
BOTTOM
SWITCH
SW 4
TOP
SWITCH
SW 3
ABOVE 2ND
SWITCH
SW 2
ABOVE 1ST
SWITCH
SW 1
BOTTOM
SWITCH
INTRINSICALLY
SAFE BARRIERS