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

Page 25

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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

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