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Preparing for Installation
S e n d d o c u m e n t c o m m e n t s t o u c s - d o c f e e d b a c k @ c i s c o . c o m
Cabinet and Rack Requirements
This section provides the requirements for the following types of cabinets and racks, assuming an
external ambient air temperature range of 0 to 104
•
•
Note
If you are selecting an enclosed cabinet, we recommend one of the thermally validated types: standard
perforated or solid-walled with a fan tray.
Note
Do not use racks that have obstructions (such as power strips), because the obstructions could impair
access to field-replaceable units (FRUs). The Cisco RP series PDUs when mounted in a Cisco R Series
Rack should not obstruct FRU replacement.
General Requirements for Cabinets and Racks
The cabinet or rack must be one of the following types:
•
The cabinet or rack must also meet the following requirements:
•
•
•
•
Note
Cisco UCS 6100 Series Fabric Interconnect Hardware Installation Guide
2-4
Standard perforated cabinets (60% or greater perforation front and back is required, the Cisco
R Series rack is an ideal choice)
Standard open racks
Standard 19 in. (48.3 cm) (four-post EIA cabinet or rack, with mounting rails that conform to
English universal hole spacing per section 1 of ANSI/EIA-310-D-1992. See the
Specific to Perforated Cabinets" section on page
The minimum vertical rack space per Cisco UCS 6120XP chassis must be one RU (rack unit), equal
to 1.75 in. (4.4 cm).
The minimum vertical rack space per Cisco UCS 6140XP chassis must be two RU (rack unit), equal
to 3.5 in. (8.8 cm).
The width between the rack-mounting rails must be at least 17.72 in. (45.0 cm) if the rear of the
chassis is not attached to the rack. For four-post EIA racks, this is the distance between the two front
rails.
For four-post EIA cabinets (perforated):
The minimum spacing for the bend radius for fiber-optic cables should have the front-mounting
–
rails of the cabinet offset from the front door by a minimum of 3 in. (7.6 cm), and a minimum
of 5 in. (12.7 cm) if cable management brackets are installed on the front of the chassis.
The distance between the outside face of the front mounting rail and the outside face of the back
–
mounting rail should be 23.5 to 34.0 in. (59.7 to 86.4 cm) to allow for rear-bracket installation.
A minimum of 2.5 in. (6.4 cm) of clear space should exist between the side edge of the chassis
–
and the side wall of the cabinet. No sizeable flow obstructions should be immediately in the way
of chassis air intake or exhaust vents.
Optional jumper power cords are available for use in a cabinet. See the
section on page
B-8.
Chapter 2
Installing the Cisco UCS 6100 Series Fabric Interconnect
o
o
F (0 to 40
C):
2-5. (The Cisco R Series Rack is an ideal choice.)
"Requirements
"Jumper Power Cord"
OL-20036-02
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