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Cisco 860 Series, Cisco 880 Series, and Cisco 890 Series Integrated Services Routers Hardware Installation Guide
OL-16193-03
Chapter 2 Installing the Router
Installing the Router
Caution Do not place anything on top of the router that weighs more than 10 pounds (4.5 kilograms), and do not
stack routers on a desktop. Excessive weight on top of the router could damage the chassis.
Caution Do not install the router or power supplies next to a heat source of any kind, including heating vents.
Installing Antennas
The Cisco 890 series wireless routers have three reverse-polarity threaded Neill-Concelman (RP-TNC)
connectors on the back panel. The antennas that are shipped with the router are dual-band 2.4-GHz to
5-GHz omnidirectional dipole antennas.
Warning
Statement 372—All wireless LAN products in the 5.2/5.3GHz band cannot be used outdoors. Use the
product only indoors.
Note Before you install the Cisco 890 series wireless router on a table, wall, or rack, connect the antennas to
the back panel. It is difficult to attach the antennas after the router is installed.
To attach the radio antennas to your wireless router, follow these steps:
Step 1 Manually screw the antennas tight to the RP-TNC connectors on the back of the router.
Figure 2-1 Attaching Antennas to the Router
Step 2 Orient the antennas. For optimum wireless performance, the antennas should be perpendicular with
respect to the floor.
a. If the router is being mounted on a desk, orient the antennas straight up.
b. If the router is being mounted on a wall, orient the antennas perpendicular to the floor as shown in
Figure 2-2 and Figure 2-3.
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