Cisco Nexus 93120TX Installation Manual page 13

Nx-os mode switch hardware

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The following figure shows the hardware features seen from the power supply side of the chassis.

Figure 2: Hardware Features on the Power Supply Side of the Chassis

Screw holes (2) for attaching a front-mount

bracket for four-post racks (one bracket on each

of two sides).

Screw holes (4) for attaching a center-mount rack

bracket for two-post racks (one bracket for each

of two sides).

A notch in both sides of the chassis for locking

the fan side of the chassis to the bottom-support

rails.

Screw holes (2) for attaching the grounding lug

to both sides of the chassis.

Depending on whether you plan to position the ports in a cold or hot aisle, you can order the fan and power

supply modules with port-side intake or port-side exhaust airflow. For port-side intake airflow, the fan and

AC power supply modules have burgundy coloring (DC power supply modules have green coloring). For

port-side exhaust airflow, the fan and AC power supplies have blue coloring (DC power supply modules have

gray coloring). You can also order the 1200-W HVAC/HVDC power supply which has dual-directional airflow

with white coloring. Dual-directional airflow modules determine and use the airflow direction of the other

modules in the switch.

The fan and power supply modules are field replaceable and you can replace one fan module or one power

supply module during operations so long as the other modules are installed and operating. If you have only

one power supply installed, you can install the replacement power supply in the open slot before removing

the original power supply.

Two power supplies (one used for operations and

one used for redundancy) (AC power supplies

shown) with power supply slot 1 on the left and

slot 2 on the right.

Two fan modules with fan slot 1 on the left and

fan slot 2 on the right.

Chassis LEDs include the following:

• Beacon (BCN)

• Status (STS)

Cisco Nexus 93120TX NX-OS Mode Switch Hardware Installation Guide

Overview

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