Cisco Systems MGX 8230 manual Making Cisco Cabinet Ground Connections

Chapter 3 Site Preparation

Power and Grounding

The Cisco-supplied cabinet has two pairs of grounding studs and the hardware for securing a ground conductor to the studs at the top and bottom of the cabinet. The studs measure 1/4" by 20 threads per inch. The studs can accept the two-holed grounding connector designed to prevent rotation and possible loosening of the connector. Figure 3-4shows the Cisco cabinet with the ground attachment studs in the upper and lower parts of the cabinet. A ground symbol on the Cisco rack indicates the points of attachment.

Making Cisco Cabinet Ground Connections

Cisco recommends the following steps for attaching a ground conductor to the frame of a Cisco rack:

Step 1 Place an external, toothed star washer onto the stud.

Step 2 Place the connector terminating the grounding conductor closed-loop ring or two-hole compression fitting onto the stud.

Step 3 Place another external, toothed star washer or lock washer onto the stud.

Step 4 Screw a nut onto the threaded stud.

	Cisco MGX 8230 Edge Concentrator Installation and Configuration
3-22	Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001