ClearCube R Series Pentium 4 - Manual (Page 56)

46 • Cage and Blade Installation ClearCube Product Manual and Installation Guide
4. Pull the rack bracket forward and insert the front rack ears on the back bracket
into holes on the front side of the front post. Push forward on the ears until the
latch snaps and locks into place. Ensure the front ears are placed into the
corresponding holes as the back ears, so that the rack bracket is level. To
remove, pull the finger tab inward with your finger and slide the ears forward.
5. Repeat steps 2 and 3 with the other cage bracket on the opposite side of the rack, in
mirrored orientation. Ensure that the brackets are level with respect to each other.
6. Slide the Cage and brackets onto the rack brackets from the front. Ensure the “U”
channels on the cage bracket engage the flanges on the rack bracket.
7. Slide the Cage all the way onto the rack brackets until flush with the front of the rack.
8. Fully tighten the thumb screws with a Phillips head screwdriver.
9. Attach the AC power cord(s) packaged and supplied with the Cage/BackPack and
route it to the rear panel power connector(s) and then to a surge-protected power
source such as an uninterruptible power supply. Use the cable retention clamp on
the Cage to avoid inadvertently disconnecting the power.
The cabling and module installation notes from the previous section, Standard Cage
Mounting Hardware, apply to this procedure.
Chassis Power Requirements
The R4300 Chassis has two internal Power Supply Units (PSUs) and two power
receptacles that provide independent power sources when plugged into separate
circuits.
If only one power cord is connected to the R4300 Chassis, the BackPack is powered
only by a single circuit, although both PSUs are active and supply power to the
BackPack. In order to have redundant AC inputs, and provide the Chassis with the
greatest reliability, each power input must be connected to a separate power source.
The Direct Connect and Switching BackPacks have a single power cord that feeds
both internal PSUs.
Figure 18 Rack Bracket Attachment Points
Back of Rack Bracket Front of Rack Bracket