HP ProLiant SL6000/SL6500 Scalable System Cabling Guide

Power cabling 12
An HP fixed-cord extension bar has four cords with power connectors. Depending on the server power
supply configuration, each extension bar can support the following:
• Up to two servers (with two power supplies)
• Up to four servers (with one power supply)
For a fully-configured 42U rack with two switches and 20 servers with two power supplies, 11 extension bars
are required.
For a list of supported extension bars, see the product QuickSpecs on the HP website
(http://www.hp.com/go/qs).
To obtain supported extension bars, contact an authorized reseller or see the HP website
(http://www.hp.com/go/rackandpower).
Power cabling configurations
Many power cabling configurations are possible, including the following examples.
In some installations, multiple racks are installed in close proximity to each other. Mounting the PDUs in a 0-U
configuration is impractical. In these instances, the following examples apply:
• Bottom-mounted mPDU and fixed-cord extension bar configuration (on page 16)
• Power cabling with Y-cables and bottom-mounted PDU (on page 17)
For single racks (including separated racks), possible power cabling configurations include the following:
• mPDU and fixed-cord extension bar configuration (on page 13)
• Power cabling with extension bars (on page 14)
• Power cabling with Y-cables (on page 15)