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11-2 Ultra Enterprise 6000/5000/4000 Systems Manual—November 1996
11
11.2 Symbols
The following symbols mean:
WARNING Hazardous voltages are present. To
reduce the risk of electrical shock and
danger to personal health, follow the
instructions.
WARNING Risk of personal injury. To reduce the
risk, follow the instructions.
CAUTION Risk of equipment damage. To reduce
the risk, follow the instructions.
SURFACE CAUTION: Hot surfaces. Avoid
contact. Surfaces are hot and may
cause personal injury if touched.
AC power cord Electric shock Unplug the AC cord from the AC wall socket before working inside the
system chassis.
Wrist strap or
Foot strap
ESD Wear a conductive wrist strap or foot strap when handling printed circuit
boards.
ESD mat ESD An approved ESD mat provides protection from static damage when used
with a wrist strap or foot strap. The mat also cushions and protects small
parts that are attached to printed circuit boards.
Cover panels System damage
and overheating
Attach all cabinet cover panels after performing any service work on the
system.
Filler panels and
load boards
System damage
and overheating
Install card cage filler panels in all unused card cage slots. Open slots
severely reduce the cooling capability of the system.
NOTE: You must use load boards instead of filler panels in the 16-slot
Enterprise 6000 system card cage.
SBus slot covers System damage
and overheating
Install SBus slot covers in all unused system board SBus slots. Openings on
the backs of system boards reduce the cooling capability of the system.
Table 11-1 Safety Precautions (Continued)
Item Problem Precaution
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