Sun Microsystems 7120, Installation Manual

Page: 31 / 156

2. If using an unthreaded universal 19-inch or Sun Rack II cabinet, snap one supplied cage nut
into the 8th rack hole, counting upward, in each front rail of the 4RU space.
3. Prepare the screws in each rail end:
Square-hole unthreaded cabinet:
No preparation.
Round-hole unthreaded cabinet:
Remove the screws from each rail end and discard.
Locate the 8 screws with washers for round-hole cabinets and place aside.
Threaded cabinet:
Remove screws and replace them in the opposite direction (from the
inside of the rail flange) so they act as location pins.
4. Position the front of the rails inside the cabinet, with the rail flange inside of the cabinet
flange, and the rail label facing the inside of the cabinet.
Square-hole unthreaded cabinet:
The screw heads fit inside the rack holes.
Round-hole unthreaded cabinet:
Install two screws with flat and spring washers through
the rack and into the front of each rail. Do
not
install into the cage nut in the rack, or the clip
nut on the rail.
DE2 24C
Chapter 2 • Installation 31