H3C Technologies H3C S12500-X Series Switches - Manual (Page 107)

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NOTE:
•
When the temperature of a power module exceeds the acceptable range, the power module
automatically powers off. When the temperature returns to the acceptable range, the power module
automatically powers on.
• When the input voltage exceeds the overvoltage protection threshold of the power module, the power
module performs overvoltage protection and provides no power.
DC input terminal blocks
If the power distribution box is far away from the rack, you can order an extension cable and a DC input
terminal block to supply power to the device.
A DC input terminal block provides eight pairs of terminals. Each pair uses two wires to provide DC
power supply. A maximum of eight pairs of wires are supported.
The LSXM1DCPDL DC input terminal block is available for the switch.
Fan trays
The S12500-X switch comes with two fan trays installed.
Order the fan trays compatible with your switch if necessary.
Table 33 Fan tray specifications
Chassis model
Applicable fan
tray
Maximum
air flow rate
Number
of fans
Fan diameter
Maximum
rotating speed
• S12510-X AC
• S12510-X DC
S12510-X fan
tray
1750 CFM 5 200 mm (7.87 in) 7700 RPM
• S12516-X AC
• S12516-X DC
S12516-X upper
fan tray FAN1
2100 CFM 17
120 mm (4.72 in) 6300 RPM
92 mm (3.62 in) 8100 RPM
S12516-X lower
fan tray FAN2
1700 CFM 13
120 mm (4.72 in) 6300 RPM
92 mm (3.62 in) 8100 RPM
Air filters
CAUTION:
Clean air filters a minimum of once every three months to guarantee adequate ventilation and avoid
over-temperature.
The air filter is an optional accessory.
You can install air filters at the air inlet vents of the chassis to prevent dust from entering the switch.
• S12510-X AC & S12510-X DC switches—Air inlet vents are located below the plastic panel at the
lower part of the front panel.