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Cabling 40
Power cabling with Y-cables and bottom-mounted PDU
For servers with 1200-W power supplies, Y-cables are specialized power cords that connect two power
supplies to a single C19 PDU outlet. Y-cables eliminate the need for extension bars (power strips) and can
provide lower cost, easier installation, and less clutter in the rack.
The following figure shows the side and back of a 42U rack with different types of scalable system servers.
The top half of the rack is configured for servers with two 1200-W power supplies, while the bottom half of
the rack is configured for servers with one 1200-W power supply.
For illustration purposes only, the right rear rack column is removed to show cable routing.