Connected Grid Module Antennas - Cisco 1240 Hardware Installation Manual

Antennas Overview
Figure 10-2
WiFi antenna
Item
1

Connected Grid Module Antennas

In addition to the two fixed antennas (GPS and WiFi), the router supports up to seven additional
antennas, which provide connectivity to the modules installed in the router. Each module requires one
or two antennas, which are mounted on the exterior of the router and connected through chassis antenna
ports to the module installed inside the router.
The router supports up to four modules. Each module requires one antenna or two antennas (one main
antenna and one auxiliary antenna). Auxiliary antennas (also known as diversity antennas) improve the
quality and reliability of the wireless connection. Because they are placed in different locations on the
router, main and auxiliary antennas detect different amounts of interference. The router uses the antenna
with the least interference to obtain the best signal.
Cisco 1240 Connected Grid Router Hardware Installation Guide
10-4
WiFi Antenna—Cisco CGR 1240 Router
Description
WiFi antenna location
Chapter 10 Antennas
OL-26223-04