46 QXS 12G Site Planning Guide
QXS 2U/5U Additional Environmental Requirements
Tab l e 21 provides the 2U/5U additional environmental requirements.
QXS 2U/5U PSU Specifications
This section contains the following information:
• QXS 2U PSU (580W) Specifications
• QXS 5U PSU (2114W) Specifications
Ta bl e 2 1 QXS 2U/5U Additional Environmental Requirements
Specification Measurement/Description
Airflow System must be operated with low pressure rear exhaust installation.
Back pressure created by rack doors and obstacles not to exceed 5Pa (0.5 mm
H
2
O)
Altitude (operating) 2U chassis: 0 to 3,000 meters (0 to 10,000 feet)
Maximum operating temperature is de-rated by 5ºC above 2,133 meters
(7,000 feet)
5U chassis: -100 to 3,000 meters (-330 to 10,000 feet)
Maximum operating temperature is de-rated by 1ºC above 900 meters (3,000
feet)
Altitude (non-operating) -100 to 12,192 meters (-330 to 40,000 feet)
Shock (operating) 5.0 g, 10 ms, ½ sine pulses, Y-axis
Shock (non-operating) 2U chassis: 30.0 g, 10 ms, ½ sine pulses
5U chassis: 30.0 g, 10 ms, ½ sine pulses (Z-axis); 20.0 g, 10 ms, ½ sine pulses
(X- and Y-axes)
Vibration (operating) 0.21 Gr
ms
5 Hz to 500 Hz random
Vibration (non-operating) 1.04 G
rms
2 Hz to 200 Hz random
Vibration (relocation) 0.3 G
rms
2 Hz to 200 Hz 0.4 decades per minute
Acoustics Operating sound power
2U chassis: £ L
WAd
6.6 Bels (re 1 pW) @ 23ºC
5U chassis: £ L
WAd
8.0 Bels (re 1 pW) @ 23ºC
Operating and mounting: 19" rack mount (2 EIA units; 5 EIA units)
• Rack rails To fit 800 mm depth racks compliant with the SSI server rack specification
• Rack characteristics Back pressure not exceeding 5Pa (~0.5 mm H
2
O)
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