3-5
Cisco uBR905 Router Hardware Installation Guide
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Chapter 3
Installing the Cisco uBR905 Router
Connecting the Ethernet Cables
Figure 3-1
Connecting the CATV Coaxial Cable to the Cisco uBR905 Router
Caution
Do not overtighten the connector because this can break off the connector. Using a torque
wrench is not recommended because of the danger of tightening the connector more than
the recommended 1/6 turn after it is finger tight.
Step 5
Make sure that all other coaxial cable connectors—all intermediate splitters, couplers, or ground
blocks—are securely tightened from the distribution tap to the Cisco uBR905 router, following
instructions in Step 4.
Note
Loose connectors inside the building or residence can cause intermittent router operation.
Caution
To ensure compliance with FCC limits, connection to the cable system must be made with
a high-quality, shielded cable. If the quality or general condition of the coaxial cable at the
subscriber site is in question, Cisco recommends that you replace the coaxial cable. For
more information on the effects of substandard cabling on the cable access router
installation, see the “CATV Coaxial Cabling” section on page 2-5.
Connecting the Ethernet Cables
To connect the Cisco uBR905 router to computers and other CPE devices at the site:
Step 1
Locate all needed 10BaseT RJ-45 Ethernet cables:
•
Use straight-through Ethernet cables to directly connect up to four PCs to the Cisco uBR905 cable
access router’s four Ethernet hub ports.
35567
Cable TV In
Reset
Power
5V
Console
X
Ethernet 0
X
X
X
1
2
3
4
Cisco uBR905
To cable source
F connector
(Cable TV In)
