AT&T Network Adapter 25 Installation And Maintenance Manual page 4

b
THE FOLLOWING SYMBOLS AND PICTOGRAPHS
APPEAR ON THE EQUIPMENT
SYMBOL
The exclamation point
within an equilateral
triangle is intended
to alert the user to
the presence of
important operating
and maintenance
(servicing) instructions
ELECTRICAL SHOCK
Warns of the danger
o f e l e c t r i c a l s h o c k
from hazardous voltages
present within the
control unit
Warns of the risk of
f i r e i f t h e a i r f i l t e r
is not in place