• Grounding cable (6 AWG recommended), sized according to local and national installation requirements;
the required length depends on the proximity of the Cisco UCS Fabric Interconnect to proper grounding
facilities
• Crimping tool large enough to accommodate girth of lug
• Wire-stripping tool
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°F (0 to 40°C):
• Standard perforated cabinets (60 percent or greater perforation front and back is required; the Cisco R
Series rack is an ideal choice)
• Standard open racks
If you are using 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.
Note
General Requirements for Cabinets and Racks
The cabinet or rack must meet the following requirements:
• 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.
• The minimum vertical rack space per Cisco UCS 6454 fabric interconnect must be one RU (rack unit),
equal to 1.75 in. (4.4 cm).
• The width between the rack-mounting rails must be at least 17.72 in. (45.0 cm) if the rear of the fabric
interconnect 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 fabric interconnect.
• 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.
Cisco UCS 6454 Fabric Interconnect Hardware Installation Guide
18
Installing the Cisco UCS Fabric Interconnect
Cabinet and Rack Requirements
