Installing Summit Dc-Powered Switches; Connecting The Internal Dc Power Supply To The Dc Source Voltage; Grounding A Summit Dc-Powered Switch - Extreme Networks Summit X150 Series Hardware Installation Manual

Installing Summit DC-Powered Switches

This section provides additional details about installing the following Summit DC-powered switches:
Summit X250e-24tDC
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Summit X250e-24xDC
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Summit X250e-48tDC
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Summit X450a-24tDC
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Summit X450a-24xDC
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Summit X450a-48tDC
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You must adhere to specific safety requirements when you connect o a DC power source for one of
these Summit switches.
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. See
EPS-T2)" on page 95

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
X480, and X650 Series)" on page
If you are installing a Summit DC-powered switch, you must ground the chassis before connecting the
switch to the DC source voltage. (See the next section,

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
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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
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Additional grounding hardware appropriate to the earth ground connection at your site
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Summit Family Switches Hardware Installation Guide
for further details.
"Rack-Mounting a Summit Switch (Models Other than Summit X460,
165.
"EPS-150DC External Power Module (with
"Grounding a Summit DC-Powered Switch.")
167