HP LH4r HP Netserver LH 3000 Rack Cabling Guide - Page 47

Chapter 3 Procedure for Connecting and Routing Cables to the LH 3000r Figure 3-5 shows a UPS connected to the power grid through a captive cord with a NEMA 5-20P. The UPS has receptacles for use in the rack: two (on the right rear) NEMA 5-20R and six NEMA 5-15R. The PDU connects to the UPS via a detachable cord (NEMA 5-20P to an IEC 320 C20). The 120 VAC PDU has nine NEMA 5-15R and one (at the right) IEC 320 receptacle. The fan (not required if perforated doors--or no doors--are used front and back) plugs into the PDU using the right-most IEC 320 receptacle. Two 120 V PDUs per UPS Possible Two 120 VAC PDUs can be plugged into the UPS in this 120 V power configuration. There are also six NEMA 5-15R receptacles in the standard UPS which can be used for equipment in the same rack if needed. 208V PDU Rack Power Configurations The 208 VAC PDU power configurations appear as shown below in Table 3-2 and Figure 3-6. Recommended 208 VAC Power Configurations In the United States, if you are using a UPS, then use PDU model E7671A or E7672A. Attach the IEC 320 C-19 end of the E7801A cord to the PDU and attach the L6-20 end of the same cord to the NEMA L6-20 receptacle on the UPS. Alternate 208 VAC Power Configurations In the 208 VAC case, without a UPS, make sure your power system has the capacity to support the power and current needs of the components you will power. (See the section entitled "Site Preparation: Circuit Breakers.") If capacity is adequate, plug the PDU into a 208 V, L6-20 receptacle. 43