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Item
S5500-28SC- HI
S5500-52SC- HI
Hot swappable fan
tray maximum
power consumption
LSPM1FAN: 19.5 W
LSPM1FANB: 19.5 W
Chassis leakage
current compliance
UL60950-1, EN60950-1, IEC60950-1, GB4943
Melting current of
power module fuse
AC-input: 3.15A/250V
DC-input: 8A/250V
Operating
temperature
0°C to 50°C (32°F to 122°F) or 0°C to 45°C (32°F to 113°F) when the
XFP-LH40-SM1550-F1 or XFP-LH80-SM1550 is used
Relative humidity
5% to 95%, noncondensing
Fire resistance
compliance
UL60950-1, EN60950-1, IEC60950-1, GB4943
Cooling system
The cooling system of the S5500-HI switch comprises the air vents in the chassis, built-in fans, and built-in
fans of power modules. To guarantee the performance of this cooling system, you must consider the
ventilation design for the installation site when you plan the installation site for the S5500-HI switch.
Cooling system of the S5500-28SC-HI and S5500-52SC-HI
The fan trays available for the S5500-28SC-HI and S5500-52SC-HI switches include LSPM1FAN and
LSPM1FANB.
IMPORTANT:
The chassis and the power modules use separate air aisles. Make sure both aisles are not blocked.
•
When an LSPM1FAN fan tray is used, ambient air flows in through the air vents in the fan tray panel
and the power module panels, circulates through the chassis and the power modules, and exhausts
at the port side.
•
When an LSPM1FANB fan tray is used, ambient air flows in through the air vents in the port-side
panel and the power module panels, circulates through the chassis and the power modules, and
exhausts through the air vents in the fan tray panel.
Cooling system of the other models in the switch series
The S5500-HI switch uses built-in fans and left-right aisles for air ventilation. Ambient air flows in through
the air vents at the left side of chassis (the direction subject to the user facing the front panel of the
chassis), circulates through the chassis and the power modules, and exhausts at the right side of the
chassis and the air outlet vents of the power modules. The chassis and power modules use independent
aisles, which must be kept clear when the switch is operating.
For different switch models, design the cooling system as follows: