Cisco 890 Series User Manual

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Cisco Integrated Services Router Hardware Installation Guide
Chapter 2 Installing the Router
Installing the Cisco 810 ISR
Installing Antennas
Note Before you install the Cisco 819 ISR on a table, wall, or DIN rail, install the antennas on the front panel.
It is difficult to install the antennas after the router is installed.
To attach the radio antennas to your wireless router, follow these steps:
Step 1 Manually screw the antenna tight to the TNC connectors on the back of the router. (See Figure 2-19.)
Figure 2-19 Installing the Antenna
Step 2
Orient the antennas. For optimum wireless performance, antennas should be generally perpendicular to
each other.
If the router is being mounted on a desk, orient the antennas straight up.
Installing a WiFi External Antenna
This section describes how to install a WiFi external antenna.
Step 1 Install the lightning arrestor. For details in installing lightning arrestor, see Cisco Aironet Lightning
Arrestor (AIR-ACC245LA-R).
Step 2 Rotate the knurled portion of the WiFi external antenna clockwise to screw the antenna to the RP-TNC.
(See Figure 2-20.)
Note WiFi antennas should be generally perpendicular to each other to achieve best coverage.
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Cisco 890 Series Specifications

General

Brand	Cisco
Model	890 Series
Category	Network Router
Language	English