User guide

45 Mbps Backhaul User Guide
Issue 3, December 2004 Page 94 of 113
11 Connectorized 45 Mbps Backhaul
11.1 Scope
This Chapter details the changes and additional features relevant to the connectorized version of the Canopy 45
Mbps Backhaul.
11.2 Product Description
11.2.1 Hardware
The connectorized version of the 45 Mbps Backhaul is designed to provide the system integrator and installer
with the ability to provide extra capability to cope with very difficult radio links compared to the 45 Mbps
Backhaul integrated version. The connectorized version allows the use of a variety of externally mounted
antennas, either Flat Plate or Dish, which have higher gains than provided by the integrated antenna.
Figure 48 Connectorized 45 Mbps Backhaul Outdoor Unit
11.2.2 Antenna Choices
The integrated antenna has a gain of 23dBi. External antennas from the list in Table 10 can be used with the
connectorized 45 Mbps Backhaul. These are approved by the FCC for use with the product and are basically
constrained by the following limits:
• Single Polarization Flat Plate Antennas – up to 28dBi per antenna
• Single/Dual Polarization Parabolic Dish Antennas – up to 37.7dBi per polarization or antenna
All external antennas – cable loss between the ODU and the antenna ports must not be less than 1.2dB
11.3 Software/Features
For most operations and features, the connectorized version and the integrated antenna version are identical.
This section covers the areas where they are different.