Replacing A Power Supply; Removing A Power Supply; Figure 100: Installing The Circuit Breaker Box - Juniper Internet Router M160 Hardware Manual

Figure 100: Installing the Circuit Breaker Box

Replacing a Power Supply

The router has two load-sharing, redundant power supplies. Each power supply is
hot-removable and hot-insertable, as described in Field-Replaceable Units (FRUs) on
page 4. When one power supply fails or is powered down, the other power supply
automatically assumes the entire electrical load for the router.
To replace a power supply, perform the following procedures:

Removing a Power Supply

The power supplies are located at the bottom rear of the chassis, as shown in
Figure 2. Each power supply weighs approximately 13 lb (5.9 kg).
CAUTION: Do not leave a power supply slot empty for more than a short time
while the router is operational. The power supply must remain in the chassis for
proper airflow.
To remove a power supply, follow this procedure (see Figure 101):
Guide pin
Removing a Power Supply on page 197
Installing a Power Supply on page 199
Replacing Hardware Components
Replacing Power System Components
197