Cisco Systems UBR-3X10 manual Cabling DS Ports to the Input Ports on the Upconverter, 5-20

Chapter 5 Cabling the RF Switch With the Cisco uBR7246VXR CMTS

Connecting the Cables (Cisco uBR-MC28x Line Card)

Figure 5-14 Cabling the Protect Line Cards (MC28C)

P1A-P1H P2A-P2H

RFS-2

LC2

LC1

RFS-1

LC4

Cabling DS Ports to the Input Ports on the Upconverter

LC3

95822

This section describes cabling from the Cisco uBR7246VXR line cards DS ports to the upconverter.

Note The Cisco uBR-MC28U cable interface line cards have onboard upconverters and are cabled directly to the DS ports (F, M, or G) on the RF switch.

Equipment

•5 cable bundles —(F-connector to F-connector—multicolor)

To cable the DS ports to the upconverter, complete the following steps. Refer to Figure 5-15 on page 5-21, and Table 5-15, Table 5-16, and Table 5-17 on page 5-22.

Step 1 Connect the cables to the downstream connectors (DS0, DS1) on the line cards (LC1–LC4).

Step 2 Secure the cables with cable wrap, and run the cable bundles up the right side of the equipment rack.

Step 3 Pull the cable bundle through the space between the VXR1 router and the RF switch. Add a 10-dB attenuator to the DS cables, if necessary.

Step 4 Connect the cables to the input ports (top) on the upconverter.

Step 5 Repeat Step 1 through Step 4 for each DS0 and DS1 port on the Cisco uBR7246VXR routers (VXR2 through VXR5).

Figure 5-15 on page 5-21shows cabling for the upconverter.

•From the DS ports of the line cards to the upconverter—multicolored cables

•From the upconverter to the RF switch—gray and brown cables

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

5-20 OL-1984-06