Cisco UCS C220 M4 Сервісна інструкція - Сторінка 2

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Features Specific to the Cisco UCS C220 M4 NEBS Server

NEBS Compliance

The Cisco UCS C220 M4 NEBS Server has been certified for the following levels of NEBS compliance:

•

The Cisco UCS C220 M4 NEBS server can use either AC or DC power supplies.

770 W AC Power Supply

The NEBS server can use one or two 770 W AC power supplies (Cisco PID UCSC-PSU1-770W=).

•

1050 W DC Power Supply

The NEBS server can use one or two 1050 W, –48 VDC power supplies (Cisco PID

UCSC-PSUV2-1050DC=).

•

The 770 W AC power supplies have internal grounding and so no additional grounding is required when

the supported AC power cords are used.

When using the 1050 W DC power supply, additional grounding of the server chassis to the earth ground

of the rack is available. A single screw hole for use with your grounding lug and grounding wire is

supplied on the chassis rear panel.

You must provide your own screw with lock-washer, grounding lug, and grounding wire. The

Note

recommended lug is Panduit LCD10-14AF-L or equivalent. The grounding point on the chassis is sized

for a single #10-32 screw. A lock-washer is required to secure the lug to the chassis. The grounding lug

must fit a #10-32 screw and 14 AWG wire. The grounding cable that you provide must be 14 AWG

(2 mm), minimum 60° C wire, or as permitted by the local code.

See

Cisco UCS C220 M4 NEBS Server Service Note

D R A F T: C i s c o C o n f i d e n t i a l

The DC-power version of the server is certified for NEBS Level 3 compliance.

The AC-power version of the server is certified for NEBS Level 1 compliance.

The server is certified for NEBS Level 1 compliance when using this AC power supply.

These power supplies are hot-swappable with 1+1 redundancy when two power supplies are present.

See

Power Supply Specifications, page

See the

Cisco UCS C220 M4 Server Installation and Service Guide,

replacing a power supply.

The server is certified for NEBS Level 3 compliance when using this DC power supply.

These power supplies are hot-swappable with 1+1 redundancy when two power supplies are present.

See

Power Supply Specifications, page

Figure 1-1

for the location of the grounding lug screw-hole on the chassis rear panel.

5, for information about these power supplies.

Chapter 3, for information about