IBM z13s, Техническое руководство

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Chapter 10. Environmental requirements
371
Figure 10-2 shows the frame extensions, also called
chimneys
, that are installed to each
corner on the left side of the A frame when the Top Exit I/O Cabling feature (FC 7920) is
ordered. The bottom of the chimney is closed with welded sheet metal.
Figure 10-2 Top Exit I/O cabling feature
The Top Exit I/O Cabling feature adds 15 cm (6 in.) to the width of the frame and about 60 lbs
(27.3 kg) to the weight.
10.1.2 Power consumption
The system operates with two redundant power supplies. Each of the power supplies has its
individual power cords. For redundancy, the server must have two power feeds. Each power
feed is one power cord. Power cords attach to either 3-phase, 50/60 hertz (Hz), 250 or
450 volt (V) alternating current (AC) power or 380 to 520 V direct current (DC) power.
Depending on the configuration, single-phase power cords can be used (200 V 30 amps (A)).
See the shaded area in Table 10-2 on page 372. The total loss of one power feed has no
effect on the system operation.
For ancillary equipment, such as the Hardware Management Console (HMC) and its display,
extra single-phase outlets are required.