Cisco Systems 9000 NEBS Supplemental Unit Bonding and Grounding Guidelines

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CiscoASR 9000 Series Aggregation Services Router Hardware Installation Guide

Chapter1 Preparing for Installation

Site Requirement Guidelines

NEBS Supplemental Unit Bonding and Grounding Guidelines

Although the router chassis requires a safety earth ground connection as part of the power cabling to

power modules, you must permanently connect the central office ground system or interior equipment

grounding system to one of the three supplemental bonding and grounding connections on the back or

side of the router chassis to meet Network Equipment Building System (NEBS) requirements as well as

safety compliance requirements. These grounding points are referred to as the NEBS bonding and

grounding points.

Note These bonding and grounding connections satisfy the Telcordia NEBS requirements for supplemental

bonding and grounding connections. If you are not installing the router in a NEBS environment, you can

choose to bypass these guidelines and rely on the safety earth ground connections to the AC or DC power

modules.

Figure1-57 NEBS Bonding and Grounding Points on the Cisco ASR 9006 Router Chassis

1NEBS grounding point on

right side of the chassis

2NEBS grounding point on

rear of the chassis

3NEBS grounding point on

left side of the chassis

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