Mellanox Technologies Switch-IB, User Manual

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Installation
76 Mellanox Technologies
2.9.2 Cable Power Classes
Chassis and switches need to be able to dissipate the heat generated by high power I/O cables and
modules. The Mellanox CS75x0 series chassis are rated for cables up to class 4 as per the SFF
committee classification (
SFF-8436.PDF ).
2.10 Power Connections
The switch includes 10 hot-swap power supply units (PSUs). Each PSU has its dedicated AC
inlet. The system uses C20 type inlets. The design enables optional use of separate main and
backup AC feeds. The AC power source should comply with 180-265VAC 50Hz or 60Hz charac-
teristics.
C19 to C20 type power cords, 15A rated, should be used to connect system to AC power. The
maximum power consumption of each power supply is 12A. Ensure all 10 power cords are firmly
connected to inlets.
Figure 64: AC Inlets
This section assumes that the power cords are not connected to the power main. Once
system assembly is finished please refer to
Chapter 4, “Chassis Power Up,” on page 88
to power the system up.
Make sure that the power cords are compatible with your outlets. Power cords for dif-
ferent countries can be ordered from Mellanox.
Make sure that the outlets and circuits are not overloaded. Spread out the load over at
least two or three circuits or use a 3 phase circuit.