Sun Microsystems Fire V480 Guía De Instalación Y Montaje página 46

TABLE A-1
Cabinet Feature
Airflow
Vertical mounting rails
EMI shielding
Minimum service access
Fire containment
en-42 Sun Fire V480 Server Setup and Rackmounting Guide • February 2002
4-Post Rack Requirements (Continued)
Requirement
The system operating airflow is 200 cfm, regardless
of ambient air and altitude. This airflow is
designed to provide appropriate cooling up to 95
o
(35 C) and 10,000 feet (3.0480 meters.)
For proper ventilation of the server, the front and back
doors must comply with the following minimum open area
requirements.
• 60 percent of the area of the front door that is directly in
front of the server must be open.
• 63 percent of the area of the back door that is directly
behind the server must be open.
• Maintain a minimum of 1.5 inches (3.8 cm) clearance
between the system and any front or back doors.
If the doors of the cabinet do not meet the open area
requirements, remove the door or doors that do not comply.
The cabinet must have two pairs of vertical mounting rails
(one pair in front, one pair in back) that conform to the EIA
(RETMA) standard for mounting hole spacing.
Left-side-to-right-side rail spacing (mounting hole center to
mounting hole center) for front and back rails must be 18.3
inches (46.5 cm).
Front-to-back rail spacing must be at least 23 inches (58.42
cm) and not more than 34.5 inches (87.63 cm) from the
outside face of the front rail to the outside face of the back
rail.
Front and back vertical rail mounting faces must be parallel
with each other and with the front plane of the rack.
Electromagnetic interference (EMI) shielding requirements
are met by the system chassis and metal side panels, which
remain in place when the unit is rackmounted.
An area not less than 3 feet (1 meter) deep and 6
feet (2 meters) wide must be available in front of the
cabinet, for installation and service access.
The cabinet must meet Underwriters Laboratories, Inc. and
TUV Rheinland of N.A. requirements for fire containment.
o
F