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Cisco uBR-3x10 RF Switch Hardware Installation and Cabling Guide
OL-1984-06
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)
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 5-9 and 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).
Table 5-8 RF Switch Slots for the PROTECT Cards
VXR5–LC US Ports RFS–1—PROTECT Slot
D
VXR5–LC US Ports RFS–2—PROTECT Slot
D
LC1 US0–US3,
US4–US5
RFS-2—P2 (A–D)
RFS-2—P2 (H–I)
LC3 US0–US3,
US4–US5
RFS-1—P2 (A–D)
RFS-1—P2 (H–I)
LC2 US0–US3,
US4–US5
RFS-2—P1 (A–D)
RFS-2—P1 (H–I)
LC4 US0–US3,
US4–US5
RFS-1—P1 (A–D)
RFS-1—P1 (H–I)
103843
RFS-1
LC1LC2
P1A-P1H
P2A-P2H
RFS-2
LC3LC4
