IBM Rear Door Heat eXchanger V2, Руководство по установке и обслуживанию

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Front-to-rear cable channels and caps
You can route cables from the front of the rack to the rear by using the cable
channels on the sides of the rack. There are two cable channels on each side of
the rack.
The front end of the cable channel has a cap that slides up and down so you can
route cables from front to rear through the channel opening without removing the
cap. After you route the cables through a channel, slide the cap down so that it
rests lightly on the cables. This helps prevent hot air recirculation from the rear of
the rack to the front of the rack.
If a cable channel is not used, make sure that the cap is completely covering the
channel opening.
Note: Some cable channel caps do not slide up and down and must be removed
before you route cables through the channel. Use a flat-blade screwdriver or
a similar tool to pry the cap off the end of the channel.
Cable
channel caps
Front to
rear cable
channels
Front to
rear cable
channels
Cable
channels
caps
Figure 32. Cable channels and caps
Chapter 4. Installing the heat exchanger
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