Extreme Networks 17001 manual Grounding a Summit DC-Powered Switch

NOTE

For centralized DC power connection, these products are intended to be installed in Restricted Access Locations (Dedicated Equipment Rooms, Equipment Closets, or the like) in accordance with Articles 110-16, 110-17, and 110-18 of the National Electric Code, ANSI/NFPA 70.

NOTE

An optional redundant power supply, the EPS-150DC, is available for use with the Summit DC-powered switches. When the EPS-150DC is used with a DC-powered Summit switch, the power supplies (internal and redundant) are fully fault tolerant and load-sharing. If one power supply fails, the other power supply will provide sufficient power to operate the switch. Refer to “EPS-150DC External Power Module (with EPS-T2)” on page 76 for further details.

Connecting the Internal DC Power Supply to the DC Source Voltage

Before you connect the switch to a power source, complete the physical installation of the switch in the equipment rack, as described in “Rack-Mounting a Summit Switch (Models Other than Summit X480 and X650 Series)” on page 120.

If you are installing a Summit DC-powered switch, you must ground the chassis before connecting the switch to the DC source voltage (see “Grounding a Summit DC-Powered Switch” below).

Grounding a Summit DC-Powered Switch

Before you connect the power input cable to a Summit DC-powered switch, you must ground the chassis, following the instructions in this section.

Gather the following materials to ground the Summit DC-powered switch:

●Stranded copper wire cable, minimum size 14 AWG, maximum size 6 AWG

The wire should be long enough to reach from the installed switch to the facility ground point

●Torque screwdriver with 1/4-inch flat blade

●Additional grounding hardware appropriate to the earth ground connection at your site

WARNING!

Be sure to connect the chassis ground wire before you connect any power cables.

To ground the switch:

1At one end of the wire, strip the insulation to expose 1/2 inch (12 mm) of bare wire.

2Identify the grounding lug on the back of the switch. The grounding lug is next to the edge of the back panel, identified by the international symbol for earth ground. Depending on the switch model, the grounding lug may be on either side (see Figure 92).

Summit Family Switches Hardware Installation Guide 123