Cisco Systems UBR-3X10 Cabling DS Ports to the Input Ports on the Upconverter, VXR5-LC, US Ports

Chapter 5 Cabling the RF Switch With the Cisco uBR7246VXR CMTS

Connecting the Cables (Cisco uBR-MC16x Card)

Figure 5-8 Cabling the Protect Line Cards (MC16x)

P1A-P1H P2A-P2H

RFS-2

LC2 LC1

RFS-1

LC4 LC3

103843

Table 5-8	RF Switch Slots for the PROTECT Cards
VXR5–LC	US Ports	RFS–1—PROTECT Slot	VXR5–LC	US Ports	RFS–2—PROTECT Slot
LC1	US0–US3,	RFS-2—P2 (A–D)	LC3	US0–US3,	RFS-1—P2 (A–D)
	US4–US5	RFS-2—P2 (H–I)		US4–US5	RFS-1—P2 (H–I)
LC2	US0–US3,	RFS-2—P1 (A–D)	LC4	US0–US3,	RFS-1—P1 (A–D)
	US4–US5	RFS-2—P1 (H–I)		US4–US5	RFS-1—P1 (H–I)

Cabling DS Ports to the Input Ports on the Upconverter

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

Note The Cisco uBR-MC16U cable interface line cards have onboard upconverters and are cabled directly to the DS ports (F) on the RF switch.

Equipment

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

To cable the DS ports, complete the following steps. Refer to Table 5-9and Figure 5-9 on page 5-13.

Step 1 Connect the cables to the downstream connectors (DS) 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 DS port (VXR2 through VXR5).

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

5-12 OL-1984-06