4 environmental requirements, 5 safety, 6 physical – Cabletron Systems STHI 44 STHI-44 User Manual
Page 25

Environmental Requirements
Page 2-10
under all conditions of line at full load. The minimum and maximum
load current from each output is shown below.
2.6.4
Environmental Requirements
Operating Temperature:
+5
°
to +50
°
C
Non-operating Temperature:
-30
°
to +90
°
C
Operating Humidity:
5 to 95% (non-condensing)
2.6.5
Safety
This equipment is designed in accordance with UL478, UL910, NEC 725-
2(b), CSA, IEC, TUV, VDE Class A, and meets FCC Part 15, Class A limits.
Warning: It is the responsibility of the person who sells the system to
which the STH will be a part to ensure that the total system meets
allowed limits of conducted and radiated emissions.
2.6.6
Physical
Dimensions:
2.8H x 17.0W x 8.0D inches
(7.2 x 43.6 x 20.5 cm)
Predicted MTBF:
STH-22/42: 653,987 hours
(mean time between failure)
STH-24/44: 653,972 hours
Table 2-5. Power Supply Loads
Output
Min. Load
Max. Load
Max Power
+5 Volts
0.50 Amps
3.0 Amps
15 Watts
+12 Volts
0.05 Amps
1.0 Amps
12 Watts