Cisco SCE8000 GBE Процедури зняття та заміни - Сторінка 9

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Chapter 9 Removal and Replacement Procedures

You must connect the PWR-2700-DC/4 power supply ground for both power supplies.

Caution

Note

If you intend to use an additional system (earth ground), ensure that the system ground connection has

been made. For ground connection installation instructions, see

page

4-20.

Remove the plastic bag attached to the front panel and put aside. This bag contains two plastic terminal

Step 2

block barriers, two cable ties, and two cable holder covers.

Verify that power is off to the DC circuit connected to the power supply you are installing. Grasp both

Step 3

power supply handles, as shown in

sure that the power supply is fully seated in the bay.

Step 4

Tighten the power supply captive installation screws.

Power supply captive installation screws must be tight to ensure protective grounding continuity.

Warning

Statement 289

Because the power requirement of the Cisco SCE 8000 does not exceed 1350 W, it is not necessary to

Note

connect two pairs of input wires to each power supply. Should it be desired to connect two pairs of input

wires, both pairs of input wires for one 2700W DC-input power supply must come from the same battery

system (A feed); and both pairs of input wires for the other power supply must come from another battery

system (B feed).

For multiple DC input power supplies, each DC input must be protected by a dedicated circuit breaker

Note

or fuse. The circuit breaker or fuse should be sized according to the power supply input rating and local

or national electrical code requirements.

OL-26784-02

Figure

9-4. Slide the power supply into the power supply bay. Make

Cisco SCE8000 10GBE Installation and Configuration Guide

Installing a DC-Input Power Supply

Connecting the System Ground,

9-9