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## 10.1 Power and cooling 

The z14 ZR1 server is a 19-inch, single-frame system that supports installation on a raised floor or non-raised floor. 

The following features are available to allow I/O cables and line cords to exit the frame from the top, bottom, or both sides of the frame: 

GLYPH<SM590000> Top Exit cabling feature (FC 7917). For more information, see 10.3.2, “Top Exit cabling feature (optional)” on page 350. 

GLYPH<SM590000> Bottom Exit cabling feature (FC 7919). For more information, see 10.3.4, “Bottom Exit cabling feature” on page 352. 

## 10.1.1 Power requirements and consumption 

This section describes the power requirements and consumption for z14 ZR1 servers. 

## Power requirements 

The z14 ZR1 is designed with a fully redundant power system. It has one or two intelligent Power Distribution Unit (PDU) pairs to power the components of the server. To make full use of the redundancy that is built into the server, the PDUs within one pair must be powered from different power distribution panels. In that case, if one PDU in a pair fails, the second PDU ensures continued operation of the server without interruption. 

The second PDU pair is installed when the second PCIe+ I/O drawer or the 16U Reserved feature is ordered. For more information, see Figure 10-1 and Table 10-1 on page 345. 

Power cords for the PDUs are attached to 1-phase, 50/60 Hz, 200 - 240 V AC power. 

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