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Figure 3
CGR 1240 Antenna Port Numbers (Bottom of Router)
Unused Antenna Ports-N Connectors
Port plugs or female N-connector bulkhead adapters with weatherproof caps must be installed in any unused antenna
ports.
The weatherproof cap on the N-connector protects the router interior from environmental elements including water, heat,
cold, and dust. They are installed on unused ports before the router is shipped, and support Cisco external antennas.
When you install a new antenna in a port with an N-connector:
Chassis-mounted antennas—Remove the N-connector before installing a chassis-mounted antenna.
External antennas—Remove weatherproof cap, then connect the supported Cisco lightning arrestor to the
N-connector. Then connect the antenna cable to the lightning arrestor.
Note: See the Cisco Connected Grid Antennas Installation Guide for detailed instructions for installing antennas and
lightning arrestors.
Front of Router (Door)
5
900 MHz antenna
6
Integrated WiFi antenna (router ships with this antenna installed)
7
WiMAX antenna
8
WiMAX antenna
33
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