IBM 2498-B40, Service Information

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Table 9. Facility requirements (continued)
Type Requirement
Cabinet (when
rack-mounted)
v One rack unit (1U) in a 48.3 cm (19-inch) cabinet–must use the
slim-rail rack kits designed for the extra width of the switch to
mount in standard cabinets/racks
v All equipment in cabinet grounded through a reliable branch
circuit connection
v
Additional weight of switch not to exceed the cabinet’s weight
limits
v
Cabinet secured to ensure stability in case of unexpected
movement
Power supply specifications
The power supplies are universal and capable of functioning worldwide without
voltage jumpers or switches. They meet IEC 61000-4-5 surge voltage requirements
and are autoranging in terms of accommodating input voltages and line
frequencies. Each power supply has built-in fans for cooling. Table 10 lists the
power supply specifications for the switch.
Table 10. Power supply specifications
Specification Value
Input voltage Range: 85-264 VAC Auto-volt, Nominal: 100-240 VAC, 2.0A, 47-63
Hz; switch autosenses input voltage.
Input frequency Range: 47-63 Hz; Nominal: 50-60 Hz.
Inrush current Limited to 50A peak @ 240Vac for any initial current surge or
spike of 10ms or less at cold start-up. Any additional inrush
current surges or spikes in the form of AC cycles or multiple AC
cycles greater than 10ms, and less than 150ms, must not exceed
15A peak.
Power supply output
(each) 150 watts @ 12V DC
Maximum current 12.5A @ 12V DC.
Input line protection Both AC lines are fused.
System power
consumption 110 W with all 48 ports populated with 16 Gbps SWL optics
72 W with empty chassis and no optics.
Environmental requirements
Table 11 lists the acceptable environmental ranges for both operating and
non-operating (such as during transportation or storage) conditions.
Table 11. Environmental requirements
Condition Acceptable range during operation Acceptable range during
non-operation
Ambient
temperature 0° to +40°C (32° to 104°F) -25° to 70°C (-13° to 158°F)
Humidity 10% to 85% RH non-condensing, at 40°C
(104°F), 10% to 90% RH non-condensing,
at 70°C (158°F)
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SAN48B-5 Installation, Service, and User Guide