Sun Microsystems 816-7727-10 manual Table A-44-Post Cabinet Requirements

TABLE A-44-Post Cabinet Requirements (Continued)

Cabinet Feature	Requirement
Airflow	The server operating airflow is 92 cfm, regardless
	of ambient air and altitude. This airflow provides
	appropriate cooling up to 104o F (40o C) and 10,000
	feet (3000 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 server 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.
Vertical mounting rails	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 17.72
	inches (45 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.
EMI shielding	Electromagnetic interference (EMI) shielding requirements
	are met by the system chassis and metal side panels, which
	remain in place when the server is rackmounted.
Minimum service access	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.
Fire containment	The cabinet must meet Underwriters Laboratories, Inc., and
	TUV Rheinland of N.A. requirements for fire containment.

Appendix A Background and Reference 53