Power Supplies; Figure 1: Front Panel Of An Ocx1100-48Sx Switch; Figure 2: Rear Panel Of An Ocx1100-48Sx Switch - Juniper OCX1100 Hardware Manual

OCX1100 Switch Hardware Guide

Power Supplies

Figure 1 on page 4

shows the front panel of an OCX1100-48SX switch.

Figure 2 on page 4

shows the rear panel of an OCX1100-48SX switch with power supplies

and fan modules installed.

To provide carrier-class reliability, OCX1100-48SX switches include:

Two fully redundant, load-sharing power supplies (either AC or DC) that are

hot-insertable and hot-removable field-replaceable units (FRUs).

Four redundant fan modules that are field-replaceable units.

Junos OS with its modular design that enables failed system processes to gracefully

restart.

OCX1100 switches support AC or DC power supplies with different airflow directions,

depending on the model. Power supplies for OCX1100 switches are fully redundant and

load-sharing, and they are hot-removable and hot-insertable FRUs. The OCX1100-48SX

switches are shipped with two power supplies preinstalled in the rear panel of the

switches.

Each power supply has a label—

power supply that indicates the direction of airflow.

back-to-front airflow while

Power supplies are installed in the two power supply slots located on the rear panel of

the switch.

Table 3 on page 5

lists the AC and DC power supplies used in OCX1100 switches and

the direction of airflow in them.

AIR IN (AFI)

AIR OUT (AFO)

AIR IN (AFI)

labels indicate front-to-back airflow.

AIR OUT (AFO)

—on the faceplate of the

labels indicate

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