Edge-Core ES4704BD, Руководство пользователя, Страница: 72 / 93

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Fig 2-8 The installation and removal of ES4710BD fan tray
2.3.3.4 Removing and Installing Power Supply Modules
2.3.3.4.1 Removing and Installing ES4704BD Power Supply
Modules
The ES4704BD employs a 1 +1 redundant power supply module combination, all two
modules will work during normal operation. In case one module fails, it can be replaced
while the system is operating without presenting an electrical hazard or damage to the
system. The procedures are provided below:
Step 1: First, turn off the switch in the front panel of the power supply module to be
replaced
Step 2: Loosen the 2 panel fasteners in the front panel of the power supply module
to be replaced by turning the screwdriver counter clockwise
Step 3: Hold the handle in the upper front panel of the power supply module, and
draw out the power supply module firmly and smoothly
Step 4: Turn off the switch in the front panel of the new power supply module, use
the new power supply module and replace the failed module . Tighten the
panel fasteners in the font panel
Step 5: Turn on the switch in the front panel of the power supply module, successful
replacement will be indicated by the green OUTPUT GOOD indicator on the
front panel of the power supply module being illuminated and by the yellow
Fail indicator not illuminating.