Sun Fire 880 Guide De Montage page 40

Cabinet Feature
Airflow
Vertical Mounting Rail
Requirements
Doors and Panels
EMI Requirements
Fire Containment
en-36 Sun Fire 880 Server Rackmounting Guide • October 2001
Requirement
For proper ventilation of the server, the front and rear 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 rear door that is directly behind the
server must be open.
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 in back) that conform to the EIA (RETMA)
standard for mounting hole spacing.
Front-to-rear rail spacing must be at least 32 inches (81.3 cm) and
not more than 36 inches (91.4 cm) from the outside face of the
front rail to the outside face of the rear rail.
Front and rear vertical rail mounting faces must be parallel to
each other and to the front plane of the cabinet.
Depending on your cabinet, you may need to remove the front
and rear door and side panels to access the server or to provide
proper ventilation. See Minimum Service Access requirements
and Airflow requirements given previously in this appendix.
See the instructions provided with the cabinet for information
about removing the front and rear doors and side panels from the
cabinet.
Electromagnetic interference (EMI) shielding requirements are
met by the system chassis and metal side doors, which must
remain in place when the unit is installed in the cabinet.
The cabinet must meet Underwriters Laboratories, Inc. and TUV
Rheinland of N.A. requirements for fire containment.