Installation guide

Introduction 1–7
Table 1–2 SF72 Storage Enclosure Specifications
Characteristic Specification
Number of disk ISE positions 4 (RF72 disk ISEs)
Formatted storage capacity
SF72–HK
1
2 GBytes
SF72–JK
2
4 GBytes
Dimensions (nominal) 26.7 cm (10.5 inches) H, 22.2 cm (8.75
inches) W, 71.1 cm (28.0 inches) D
Weight (nominal)
SF72–HK
1
34.93 kg (72 lb)
SF72–JK
2
41.28 kg (91 lb)
Agency compliance FCC, UL, IEC, CSA, and VDE
Temperature +10°C to +40°C (+50°F to +104°F).
Derate 1.8°C for each 1000 meters altitude
(1.0°F for each 1000 feet altitude)
Humidity 10% to 85% @ maximum wet bulb
temperature of +32°C (+90°F) and
minimum dew point of +2°C (+36°F)
Recommended Environmental Limits
3
Operating environment
Temperature 18°C to 24°C (64.4°F to 75.2°F) with
an average rate of change of 3°C/hour
maximum and a step change of 3°C or less
Relative humidity 40% to 60% (noncondensing) with a step
change of 10% or less (noncondensing)
Altitude Up to 2400 meters (8000 feet)
Air quality (maximum
particle count)
Not to exceed 500,000 particles per cubic
foot of air at a size of 0.5 micron or larger
Air volume (at inlet) 50 cubic feet per minute (0.026 cubic
meters per second)
1
The SF72–HK contains two RF72 disk ISEs.
2
The SF72–JK contains four RF72 disk ISEs.
3
These limits are for optimum equipment performance and reliability.