Figure 44: Three-Phase Delta AC Power Cord
Three-Phase Wye AC Power Supply
Each three-phase wye AC power supply weighs approximately 31.0 lb (14.06 kg). A metal
wiring compartment contains the AC terminal block and ground labeled GND. The AC
terminal block consists of four input terminals labeled L1, L2, L3, and N, from left to right.
The power switch provides power to the router. Each power supply’s cooling system
consists of two fans, a front air filter, and a side air filter. LEDs provide the status of the
power supply. Figure 45 on page 108 shows the three-phase wye AC power supply.
Figure 45: Three-Phase Wye AC Power Supply
Figure 46 on page 109 shows the three-phase wye AC power supply connections.
Copyright © 2017, Juniper Networks, Inc.108
T640 Core Router Hardware Guide
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