Cisco Systems 11000 Series manual DC Power Supply Safety Warnings, Network Management

Models: 11000 Series

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Network Management

Appendix A Specifications

DC Power Supply Safety Warnings

Network Management

The CSS supports the following network management protocols:

SNMP v1

SNMP v2

DC Power Supply Safety Warnings

Warning The DC power supply must be installed in restricted access areas only (for example, dedicated equipment rooms, equipment closets) in accordance with articles 110-16, 110-17, and 110-18 of the national electric code, ANSI/NFPA 70. Connect a DC CSS 11150 or CSS 11800 to a -48 VDC source that is electrically isolated from the AC power source and is reliably grounded to earth.

This equipment is designed to permit the connection of the grounded conductor of the DC supply circuit to the grounding conductor at the equipment. If this connection is made, all of the following conditions must be met:

This equipment shall be connected directly to the DC supply system grounding electrode conductor or bonding jumper from a grounding terminal bar or bus to which the DC supply system grounding electrode conductor is connected.

This equipment shall be located in the same immediate area as any other equipment that has a connection between the grounded conductor of the same DC supply circuit and the grounding conductor, and also the point of grounding of the DC system. The DC system shall not be grounded elsewhere.

The DC supply source is to be located within the same premises as the equipment.

There shall be no switching or disconnecting devices in the grounded circuit conductor between the DC source and the point of connection of the grounding electrode conductor.

 

 

Cisco 11000 Series Content Services Switch Hardware Installation Guide

 

 

 

 

 

 

78-15146-02

 

 

A-9

 

 

 

Page 95
Image 95
Cisco Systems 11000 Series manual DC Power Supply Safety Warnings, Network Management