Cisco Systems UBR7225VXR Cisco uBR7225VXR Router Chassis, Cable interface line card slot

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 1-2shows 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

		1
S	US0	US1	US2	US3	US4	US5			uBR - MC16U	DS0
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										RF
O
T
1
uBR7225-VXR									uBR - MC28U	DS0	DS1
S	US0	US1	US2	US3	US4	US5	US6	US7
										-	-
L										RF	RF
O											270489
T
2
	2

1

Cable interface line card slot 1

2

Cable interface line card slot 2

Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide

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