PWR-2700-DC-R datasheet(31/80 Pages) ARISTA

31 / 80 page

Cabling the Modular Switch

Power down the switch: Remove all power cords from the power inlets.

4.3

Cabling the AC Power Supply

Rear Panel displays the rear panel location of power supplies and fabric modules.

The switch uses power cables with IEC-320 C-19 plugs. The accessory kit provides IEC-320 C-19

to C-20 power cables, each two meters long. To insert a power cable, plug the power cables into the

inlet.

4.4

Cabling the DC Power Supply

Important: The -48V and Battery-Return leads are a pair and should run adjacent to each

other and be approximately the same length.

Le - 48V et câbles de batterie-retour sont une paire courir à côté de l'autre et doivent être à peu

près la même longueur.

4.4.1

DC Power Supplies

The 7500N Series chassis supports two DC power supplies.

•

PWR-3K-DC-RED Power Supply.

•

DC Power Adapter Installation for PWR-2700-DC-R.

4.4.2

Wire and Lug Preparation

Before performing any installation actions, ensure power is removed from DC circuits by turning off the

power line servicing the circuits. Prepare the stranded wiring before you begin a DC power installation.

1. Stranded copper wiring is required.

•

Commercially available 2 to 4 AWG wire is recommended for installations in the U.S.

•

Wire size should meet local and national installation requirements.

•

Grounding wires and grounding lugs are not supplied.

•

Strip the wires to the appropriate length for the lugs.

The wires connecting the DC power supply to the power source must meet the following

requirements:

•

DC Input Wire Size: 2 – 4 AWG (33.6 mm

2 to 21.2 mm2).

•

Primary Ground Wire Size: 2 – 4 AWG (33.6 mm

2 to 21.2 mm2) per power supply.

•

The conductors are copper.

Figure 20: Lugs Wiring Terminations

PWR-2700-DC-R Datasheet(PDF) 31 Page - Arista Networks, Inc

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