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Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide
OL-17309-02
Chapter 1 Cisco uBR7225VXR Overview
Cisco uBR7225VXR Universal Broadband Router
Cisco uBR7225VXR Router Chassis
The Cisco uBR7225VXR router chassis has:
• Two slots for cable interface cards
• One slot for a network processing engine
The front of the Cisco uBR7225VXR chassis provides access to two cable interface line cards. See
Figure 1-1.
The rear of the Cisco uBR7225VXR provides access to the network processing engine and up to two
power supplies. See Figure 1-2.
A fully configured Cisco uBR7225VXR router can operate with only one installed power supply;
however, a second, optional power supply of the same type provides hot-swappable, load-sharing, and
redundant power. In a chassis using two power supplies, if one power supply fails or is removed, the
redundant power supply immediately takes over the router’s power requirements and maintains normal
operation without interruption.
The power supply has the router’s main power switch and an AC-input power receptacle. Mounting holes
for a ground lug are located on the far right side on the rear of the chassis, to provide a chassis ground
connection for ESD-preventive equipment. See Figure 3-13 on page 3-16.
Note Figure 1-2 shows the rear of a Cisco uBR7225VXR router configured with two 300W AC-input power
supplies.
Caution If you are using two power supplies, make sure that each one is plugged into a separate branch circuit.
A fully loaded router, with two installed power supplies (300 W) and all chassis slots filled, weighs
approximately 48 pounds (21.8 kg). For clearance requirements and rack-mount installation
considerations, refer to the “Site Environment” section on page 2-5.
Figure 1-1 Cisco uBR7225VXR Router—Front View
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Cable interface line card slot 1
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Cable interface line card slot 2
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