Cisco Systems UBR-3X10 manual US7

Chapter 4 Cabling the RF Switch With the Cisco uBR10012 CMTS Cable Interface Line Cards

Connecting the RF Cables (Cisco uBR10-MC5X20S/U/H)

Table 4-11	MC5X20 Dual/Quad-Shielded 10-Color Cable Ports and Cable Colors (continued)
Universal Cable Holder (1)			Universal Cable Holder (2)			Universal Cable Holder (3)
Line Card	Cable	RF Switch	Line Card	Cable	RF Switch	Line Card	Cable	RF Switch
Port	Color	User Defined	Port	Color	User Defined	Port	Color	User Defined
US7	Black		US17	Violet		—	—
US8	Gray		US18	Orange		—	—
US9	Brown		US19	Black		—	—

1.US = upstream

2.DS = downstream

Cabling the Output Cables (CABLE PLANT to HUB)

This section describes cabling the RF switch for output.

CABLE PLANT cable headers are wired in the reverse sequence of the CMTS and PROTECT headers (see Figure 4-17 on page 4-30). Use the same connection methods as described in:

•“Mapping the Working and Protect Cisco uBR10-MC5X20S/U/H Line Cards RF Cables to the RF Switch” section on page 4-21

•“Connecting the RF Cables (Cisco uBR10-MC5X20S/U/H)” section on page 4-26

Note CABLE PLANT slots on the Cisco uBR 3x10 RF Switch are numbered in reverse sequence from CMTS and PROTECT. Slot number one is on the far right. Refer to Figure 4-17 on page 4-30for header block and cable designations as viewed from the cable side of the header blocks.

Equipment

•7 RF cable kit: CAB-RFSW520TPMF (RFS to cable plant, MCX to F, two 10-bundle, one 5-bundle)

•14 header blocks provided with input cable kits

To cable the output connections, complete the following steps. See Figure 4-17 on page 4-30.

Step 1 Install the header blocks on the CABLE PLANT section of the RF switch.

Step 2 Install the output cables in the header blocks. Refer to the “Connecting the RF Cables

(Cisco uBR10-MC5X20S/U/H)” section on page 4-26 for MCX connector installation instructions.

Note The output cables (CABLE PLANT) on the Cisco uBR 3x10 RF Switches are cabled in the reverse order of the input cables (CMTS).

Step 3 Run the output cables (H–A) from header blocks to splitters, US laser receivers, or the low side of the diplex filters.

Step 4 Run the output cables (M, F, G) to the splitters/combiners, DS laser transmitters, or the high side of the diplex filters.

Note N is not used.

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

OL-1984-06 4-29