2. Installation and Connection
Express5800/R120h-1M User’s Guide
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Chapter 2 Preparations
Push the lock release button of the outer rail in the direction of the arrow and push the rail forward of
the rack to remove it.
(b) Extension rail for 1U rack server N8143-127/128
Checking the outer rails
Check the direction of the outer rail.
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."
Left rail
Marking of Front right
Marking of Front left
Right rail
Marking of Rear
Marking of Rear