Power Supplies - Cisco 7000 Hardware Installation And Maintenance

Physical Description

Power Supplies

The router comes equipped with one 700W, AC-input or DC-input power supply. An optional second
identical power supply also is available for redundant power. Dual power supplies are automatically
load sharing and redundant, which means a second power supply can be installed or replaced without
interrupting system operation.
Caution
chassis. Your Cisco 7000 must have either DC-input or AC-input power supplies.
Each power supply should be connected to a separate power source so that, in case of an input power
line or power supply failure, the second power supply maintains uninterrupted system power.
Caution
a low center of gravity in the chassis.
You must turn the power switch (shown in Figure 1-6) to the off (O) position before you can remove
it from the chassis. When the power supply switch is in the on (|) position, a metal tab on the switch
slides into a slot in the power supply bay to lock the power supply in the chassis. (See Figure 1-6.)
When the switch is in the off (O) position, the tab retracts so that you can slide the power supply out.
Caution
the supply is securely seated in the bay and provides proper grounding. (See Figure 1-6.)
Figure 1-6
1-24 Cisco 7000 Hardware Installation and Maintenance
To prevent problems, do not mix DC-input and AC-input power supplies in the same
When only one power supply is used, install it in the lower power-supply bay to maintain
Always tighten the captive installation screw at the top of the power supply; it ensures that
Power Supply and Status Indicators—AC-Input Power Supply Shown
Captive
installation
screw
LEDs
AC power
receptacle
On/off switch
Power supply
front panel
Locking device