Juniper ACX4000 Hardware Manual page 68

configuration with full power for as long as the router is operational. A second power supply can be
installed for redundancy. Each power supply is cooled by its own internal cooling system.
Redundant power supplies are hot-removable and hot-insertable. When you remove a power supply
from a router that uses only one power supply, the router might shut down depending on your
configuration.
AC Power Supplies
Each AC power supply weighs approximately 2.6 lb (1.18 kg) and consists of a handle, an ejection tab, an
AC appliance inlet, a fan, and an LED to monitor the status of the power supply.
shows the power supply.
Each inlet requires a dedicated AC power feed and a dedicated customer site circuit breaker. We
recommend that you use a dedicated customer site circuit breaker rated for 17 A (100 VAC), or as
required by local code.
Figure 10: AC Power Supply
WARNING: The router is pluggable type A equipment installed in a restricted-access
location. It has a separate protective earthing terminal (sized for SAE 10-32 ground
screws) provided on the chassis in addition to the grounding pin of the power supply
cord. This separate protective earthing terminal must be permanently connected to
earth.
Figure 10 on page 59
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