H3C S7500E-XS Series, Руководство по установке, Страница: 28 / 64

21
Removing a power module
CAUTION:
• When an S7502E-XS switch has two power modules in 1+1 redundancy mode, removing one power
module does not affect the operation of the switch. When the switch has only one power module
installed, removing the power module powers off the switch.
• When an S7504E-XS switch has four power modules in 2+2 redundancy mode, removing one or two
power modules does not affect the operation of the switch. When the switch has only two power module
installed, removing a power module might power off the switch or cause power insufficiency.
The power module removing procedures are the same for the S7500E-XS series. This section uses the
S7502E-XS switch as an example:
To remove a power module:
1. Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2. Squeeze the tabs on the power cord connector with your thumb and forefinger, and pull the
connector out to remove the power cord, as shown in
Figure 28 .
3. Hold the handle on the power module with one hand, pivot the latch on the power module to the
right with your thumb, and pull the power module part way out of the slot, as shown in
Figure 29 .
4. Supporting the power module bottom with one hand, slowly pull the power module out with the
other hand.
5. Put away the removed power module in an antistatic bag for future use.
Figure 28 Removing the DC power cord
(1) Press the tabs on the power cord connector with your thumb and forefinger
(2) Pull the power cord connector out