Cisco 10720 Configuration Guide - Page 59

Grounding the Cisco 10720 Internet Router, Supplemental Unit Bonding and Grounding Guidelines

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Chapter 3 Installing the Cisco 10720 Internet Router Grounding the Cisco 10720 Internet Router Figure 3-8 Applying Rubber Feet to the Bottom of the Router Chassis 57854 Step 4 Pull the adhesive paper off the rubber feet and apply them to the bottom of the router. (See Figure 3-8.) Caution The front and back panels of the router require at least 6 inches clearance away from the wall or other items that can block proper airflow. The side panel requires 1 inch of clearance away from the wall or other items that can block proper airflow. The top and bottom of the router chassis do not require any specific clearance. Step 5 Turn the router over and set it on a desktop or other level surface that provides the necessary ventilation clearance. Grounding the Cisco 10720 Internet Router If the router is installed in a Network Equipment Building System (NEBS) environment, follow the guidelines in this section. For installations other than in a NEBS environment, you may chose to rely on the safety earth ground connection supplied via the International Electrotechnical Commission (IEC) 320 plugs for the AC power supply and DC power supply. For additional NEBS information, see the Regulatory Compliance and Safety Information for the Cisco 10720 document. Supplemental Unit Bonding and Grounding Guidelines If the router is not installed in a NEBS environment, you can bypass these guidelines and rely on the safety earth ground connection supplied via the IEC 320 plugs for the AC power supply and DC power supply. Bonding and grounding receptacles are intended to satisfy the Telcordia NEBS requirements for supplemental bonding and grounding connections. The router requires a safety earth ground connection as part of the power cabling to the AC and DC power supplies. We strongly recommend that you connect the central office (CO) ground system or interior equipment grounding system to the chassis. Grounding to the CO system or your interior equipment grounding system meets the NEBS bonding and grounding requirement. 78-13062-10 Cisco 10720 Internet Router Installation and Configuration Guide 3-9

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3-9
Cisco 10720 Internet Router Installation and Configuration Guide
78-13062-10
Chapter 3
Installing the Cisco 10720 Internet Router
Grounding the Cisco 10720 Internet Router
Figure 3-8
Applying Rubber Feet to the Bottom of the Router Chassis
Step 4
Pull the adhesive paper off the rubber feet and apply them to the bottom of the router. (See
Figure 3-8
.)
Caution
The front and back panels of the router require at least 6 inches clearance away from the wall or other
items that can block proper airflow. The side panel requires 1 inch of clearance away from the wall
or other items that can block proper airflow. The top and bottom of the router chassis do not require
any specific clearance.
Step 5
Turn the router over and set it on a desktop or other level surface that provides the necessary ventilation
clearance.
Grounding the Cisco 10720 Internet Router
If the router is installed in a Network Equipment Building System (NEBS) environment, follow the
guidelines in this section. For installations other than in a NEBS environment, you may chose to rely on
the safety earth ground connection supplied via the International Electrotechnical Commission
(IEC) 320 plugs for the AC power supply and DC power supply.
For additional NEBS information, see the
Regulatory Compliance and Safety Information for the Cisco
10720
document.
Supplemental Unit Bonding and Grounding Guidelines
If the router is not installed in a NEBS environment, you can bypass these guidelines and rely on the
safety earth ground connection supplied via the IEC 320 plugs for the AC power supply and DC power
supply.
Bonding and grounding receptacles are intended to satisfy the Telcordia NEBS requirements for
supplemental bonding and grounding connections. The router requires a safety earth ground connection
as part of the power cabling to the AC and DC power supplies.
We strongly recommend that you connect the central office (CO) ground system or interior equipment
grounding system to the chassis. Grounding to the CO system or your interior equipment grounding
system meets the NEBS bonding and grounding requirement.
57854