System Ground Connection Guidelines
System Ground Connection Guidelines
Before connecting power to or turning on the Cisco 12008, be sure to provide an adequate ground connection for your system.
Two system (earth) grounding holes are provided on each side panel of the router enclosure, approximately 3 inches from the bottom rear of the panel (Figure 2-7).
To make an adequate grounding connection, you will need the following parts:
•Two grounding lugs—The grounding lugs must have two M6 screw holes that have 0.625 to 0.75 inch (15.86 to 19.05 mm) spacing between them.
These lugs are similar to those used for the DC-input power supply (see Figure 2-6). The grounding lugs are not available from Cisco Systems; any electrical-connector vendor, such as Panduit, can readily provide this lug.
•Four M6 (metric) hex-head screws with locking washers—These screws are not available from Cisco Systems; they are readily available from any commercial hardware vendor.
•Two grounding wires (4 AWG recommended)—The length of the grounding wires depends on the location of your router within the site and its proximity to proper grounding facilities. The grounding wire is not available from Cisco Systems; it is readily available from any commercial cable vendor.
The procedure for connecting system ground to your router is presented in Chapter 3 in the section entitled “Connecting System Ground.”
2-18Cisco 12008 Gigabit Switch Router Installation and Configuration Guide
