Cisco Systems 9000 Manual De Usuario
1-52
Cisco ASR 9000 Series Aggregation Services Router Hardware Installation Guide
Chapter 1 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.
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.
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.
Figure 1-57
NEBS Bonding and Grounding Points on the Cisco ASR 9006 Router Chassis
1
NEBS grounding point on
right side of the chassis
right side of the chassis
2 NEBS grounding point on
rear of the chassis
3
NEBS grounding point on
left side of the chassis
left side of the chassis
243182
1
2
3