Cisco Systems 124792 Manual De Usuario

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Cisco AC/DC Power System User Guide, R1.0
May 2006
Chapter 2      System Installation
2.2.3   Install the Ground Cable
Figure 2-8
Installing 1 RU DC Cabling 
2.2.3 Install the Ground Cable 
Warning
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the 
absence of a suitably installed ground conductor. Contact the appropriate electrical inspection 
authority or an electrician if you are uncertain that suitable grounding is available. 
Statement 1024
The equipment rack/cabinet, system, and optional distribution shelf need to be properly grounded to 
ensure the safe and efficient operation of the Cisco AC/DC Power System. Refer to NEC, CEC, ANSI 
T1-333, ETSI 300-386-TC, and local codes for guidelines on bonding telecom DC power equipment to 
building ground. 
The system shelf should be connected to the rack/cabinet frame by a UL-listed 6 AWG (16mm²) wire 
with an insulation rating of at least 75° Celsius. Two #10 studs are provided at the rear of the shelf. The 
connection at the shelf end is made using a UL-listed double-hole lug 1/4in and 5/8in. center-to-center 
(lug part # Panduit LCD6-14A-L or equivalent). 
The optional 1 RU Distribution Shelf should be bonded to the frame by a UL-listed 6 AWG (16mm²) 
wire with an insulation rating of at least 75° Celsius. Two #10 studs are provided at the rear of the shelf 
for this purpose. The connection at the shelf end is made using a UL-listed double-hole lug 1/4in. and 
5/8in. center-to-center (lug part # Panduit LCD6-14A-L or equivalent). 
124783
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