Juniper QFX10002 DC Power Supply

The DC power supplies in QFX10002 models (see Figure 1) are hot-removable and hot-insertable field-replaceable units (FRUs) that install without powering off the device or disrupting the switching function. The two 1600-W power supplies in a QFX10002-36Q are installed at the factory and supply 1200 W of power to the chassis. Likewise, the four 1600-W power supplies in a QFX10002-72Q switch are installed at the factory and supply 2400 W of power to the chassis. A QFX10002 has double the amount of power supplies needed to power all of the components in the switch, which is known as 2N redundancy. ...