power distribution solutions for the ProLiant DL580 G2 server

power

distribution

solutions

HP recommends using power distribution units (PDUs) in installations where a number of

server units can place serious loading demands on the AC power bus. HP offers PDUs

that provide safety and reliability to multi-server installations.

The units described in this white paper offer 0U/1U mounting options and feature circuit-

breaker protection of equipment in groups.

Figure 1 shows a PDU using the 0U rack

mounting option. This configuration may be

preferable in a high-density installation

requiring the maximum amount of vertical

space for servers and other active

components. The 0U configuration offers

the following advantages:

• saves vertical rack space for equipment

requiring more operator / maintenance

accessibility

• easy access to power connections

Figure 2 shows a PDU using the 1U rack

mounting option. This configuration may be

preferable in installations where operator

or maintenance accessibility to all

components is key. The 1U configuration

offers the following advantages:

• easy access to all switches and circuit

breakers

• easy viewing of circuit status LED

• easy access for service replacement or

upgrade

figure 1. 0U Rack Mounting Option

figure 2. 1U Rack Mounting Option

modular PDU

The Modular PDU (see Figure 3) consists of a control core that connects to the power bus

(or to a UPS) and four extension bars that distribute power to the equipment groups. The

control core includes a 15A circuit breaker for each of the four C19-type extension bar

outputs. Available in low- and high-voltage versions, the modular PDU comes with a

choice of three types of extension bars to accommodate a variety of distribution

requirements. The control core may be rack-mounted in a 0U or 1U configuration. The

extension bars include mounting brackets for attachment to vertical rack supports.