Cisco Systems UBR-3X10 manual Ethernet Controller Module, Power Supply Module

Chapter 1 Cisco uBR-3x10 RF Switch Overview

Hardware Component Descriptions

Figure 1-3 Power Supply Module

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1	Strain relief for DC power cables	5	Power select switch (power off, AC, or DC).
			This is a three way toggle switch, the center
2	Captive screws
			position is off; toggle down for AC, toggle up
3	Power LED (green–on)
			for DC.
4	DC power connection	6	AC power input with strain relief retainer clip

Ethernet Controller Module

•Cisco part number 74-2620-01 (see Figure 1-4 on page 1-6).

Within the Cisco uBR 3x10 RF Switch system, only one Ethernet controller is used.

The Ethernet controller module performs two primary functions.

•Connecting the Cisco uBR 3x10 RF Switch to a Cisco uBR10012 router or a Cisco uBR7246VXR router. You can use a crossover cable to connect the Cisco CMTS to the RF switch Ethernet controller’s RJ-45 receptacle. Or, you can use a straight-through cable to connect the RF switch and the CMTS through an ethernet switch or a hub. This connection allows you to remotely control both automatic and manual operations of the Cisco RF switch by passing SNMP traffic between the Cisco RF switch and the Cisco CMTS.

For example, when a cable interface line card on the Cisco universal broadband router experiences a failure or if the Cisco universal broadband router detects a large number of remote customer premises equipment (CPE) devices that have gone offline, an SNMP alert is automatically transmitted to the Cisco uBR 3x10 RF Switch and a protecting cable interface line card assumes working status for the failed or faulty cable interface line card.

•Connecting a console terminal to the Cisco uBR 3x10 RF Switch. You can use a rollover cable to connect the console terminal to the RF switch Ethernet controller’s EIA/TIA-232 receptacle.This connection allows you to configure the Cisco uBR 3x10 RF Switch for N+1 redundancy. Use the configuration commands described in the “N+1 Redundancy for the Cisco CMTS” chapter of the Cisco CMTS Feature Guide, available on Cisco.com. (See the “Obtaining Documentation” section on page 11.)

Cisco uBR-3x10 RF Switch Hardware Installation and Cabling Guide

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