Cabletron Systems 9032848-02 ユーザーズマニュアル

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Preparing for Installation 2-5
Reviewing the Site Requirements
Electrical and Environmental Requirements
Ensure that the environmental and electrical requirements are within the ranges 
described in the following tables.
Table  2-2:  Environmental Specifications
Parameter 
Description
Operating Environment
Temperature
1
1. For sites above 4900 m (16,000 ft), decrease the operating temperature specification by 
1.8
°
C for each 1000 m or 3.2
°
F for each 3200 ft.
5
°
C to 50
°
C (41
°
F to 122
°
F)
Maximum rate of change
20
°
C/h (36
°
F/h)
Relative humidity
10% to 95% (noncondensing)
Wet-bulb temperature
32
°
C (90
°
F)
Altitude
Sea level to 2.4 km (8000 ft)
Air 
flow Convection 
cooled
Nonoperating Environment
Temperature
–40
°
C to 66
°
C (–40
°
F to 151
°
F)
Relative humidity
Up to 95% (noncondensing)
Altitude
Up to 4.9 km (16,000 ft)
Certifications
CE, CSA, FCC, TÜV, UL, VCCI