Cambium Networks RFU-C, Руководство по установке

Страница: 14 / 68

Chapter 1: Before You Start Important Notes
phn-4026 003v000
Page 1-2
Important Notes
• For the warranty to be honored, install the unit in accordance with the instructions in this manual.
•
Any changes or modifications of equipment not expressly approved by the manufacturer could void the user’s
authority to operate the equipment and the warranty for such equipment.
• RFU-C must be installed and permanently connected to protective earth by qualified service personnel in
accordance with applicable national electrical codes.
Public and Occupational Boundary Distances Under Article 3.1(a) of
the RE Directive
• Based on the highest nominal output power of the RFU-C:
•
The public exposure of compliance boundary distance is 4.8m.
• The occupational exposure of compliance boundary distance is 1.2m. This is the worst case for the highest
nominal output power, using 10-13 GHz frequency bands and antennas up to 1 ft. For all other configurations,
the compliance boundary distance is 0.
•
Note that even when the compliance boundary is a non-zero value, this only applies within the bore sight of
the antenna dish. Therefore, during work within and close to the front of the antenna, make sure the
transmitters are turned off. As long as the transmitters are turned off during any work on the system, the
occupational exposure limit is not of concern to workers operating in or around the parabolic dish antenna.
Acronyms
•
CCDP Co-Channel Dual Polarization
• IDU Indoor Unit
•
OMT Orthogonal Mode Transducer
• RFU Radio Frequency Unit
•
WG Waveguide
• XPD Cross Polar Differentiation
•
XPIC Cross Polarization Interference Cancellation