Table 18. Temperature requirements
Operating Nonoperating
10°C - 38°C (50°F - 100.4°F)
1
-40°C - 60°C (-40°F - 140°F)
1
The maximum 38°C (100.4°F) temperature must be derated 1°C (1.8 °F) per 137 m (450 ft) above 1295 m (4250 ft).
Table 19. Environmental requirements
Environment Operating Nonoperating Maximum altitude
Noncondensing humidity 20% - 80% (allowable)
40% - 55% (recommended)
8% - 80% (including
condensing)
2134 m (7000 ft) above sea
level
Wet bulb temperature 21°C (69.8°F) 27°C (80.6°F)
Table 20. Noise emissions
1
Properties Operating Idle
L
WAd
6.0 bels 6.0 bels
L
pAm
(1-meter bystander) 43 dB 43 dB
1
Single drawer in standard 19-inch rack with 24 hard drives, nominal environmental conditions, and no front or rear
doors on rack.
For a description of noise emission values, see Acoustics.
All measurements made in conformance with ISO 7779 and declared in conformance with ISO 9296.
Table 21. Service clearances for rack-mounted expansion unit
Front Back Sides
914 mm (36 in.) 914 mm (36 in.) 914 mm (36 in.)
Side and top clearances are optional during operation.
Safety compliance: This hardware is designed and certified to meet the following safety standards: UL
60950; CAN/CSA C22.2 No. 60950–00; EN 60950; IEC 60950 including all National Differences
EMX0 PCIe Gen3 I/O expansion drawer (feature code EMX0)
Hardware specifications provide detailed information for your expansion unit, including dimensions,
electrical, power, temperature, environment, and service clearances.
Table 22. Dimensions for rack-mounted expansion unit
Width Depth Height Weight (maximum)
482 mm (19 in.) 802 mm (31.6 in.)
173 mm (6.8 in.), 4 EIA
units
54.4 kg (120 lb)
Table 23. Electrical
1,2,3
Electrical characteristics Properties
AC rated voltage and frequency 100 - 127 V ac or 200 - 240 V ac at 50 or 60 Hz plus or
minus 3 Hz (FC EMXA)
DC rated voltage 192 - 400 V dc (FC EMXB)
Thermal output (maximum) 1740 BTU/hr
Maximum power consumption 510 W
Maximum kVA 0.520
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