NEC Express5800 Series User Manual page 131

Chapter 2 Preparations
(1) Preparation before installing to the rack
The rail (N8143-135) for the 1U rack server is required when installing to the rack.
● Checking the inner and outer rails
Check the direction of the inner and outer rails.
Since there are markings of "Right" and "Left" on the outer rail, check the proper directions of right and left
with it. Likewise, check the directions of front and back with the markings of "Front" and "Rear."
On the inner rail, there is no marking for Front, Rear, Right or Left, so refer to the figure below to check the
each direction.
Right outer rail on front
Left outer rail on front
Front
Important
Rail for left side has different shape from that for right side. Make sure the
orientation of rails to properly install them.
Outer rail
Right inner rail
Express5800/R120h-1E User's Guide
2. Installation and Connection
Left inner rail
Inner rail
Rear
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