User Manual

DELTANODE FIBER DAS MANUAL
©DeltaNode Solutions 2012
4
Revision 12-03
 System Noise Figure calculator
 Intermodulation performance
calculator
 Uplink / Downlink Balance
 Dynamic headroom indicator
1 Introduction
This manual contains both guidelines on how to design a system using the DeltaNode Fiber-DAS concept
and how to install, commission and maintain such a system for the life span of the entire installation. It
will also contain many bits of information regarding general practices in the industry as well as other
information.
The information in this manual has been proof-read by several people at DeltaNode and industry
experts, however we cannot guarantee that there are no errors, omissions or other mistakes. If you
should have any questions on the contents in this manual please contact
[e-mail] or your
closest representative for more information on this.
When other manufacturers have converted off-air repeaters into fiber-fed repeaters, DeltaNode has
developed the concept from scratch with fiber distribution in mind from the start. This allows for
extremely good radio performance and we are proud of the best in class noise figure of less than 3 dB for
the whole system, remote unit antenna port to base station interface port.
The Fiber-DAS from DeltaNode is also extremely flexible in its solution meaning that the system can be
tailored for almost any needs that should arise. Because of the flexibility there are also many parameters
that can be changed by the user. This manual attempts to explain not only what they do, but also how
you should reason when you set them up properly.
Together with this manual you should have the aid of the
Fiber-DAS calculator, this is an Excel spreadsheet that allows
you to simulate the noise figure, intermodulation
performance and the system dynamics that will give you a
measure on how well the system will perform.
There is also a system design chapter that contains many
useful advices on how to design a well working system as well as some examples on common types of
designs where the manual attempts to take you through the design phase step by step.
The installation and commissioning parts of the manual aims at being a good help in the field by
providing practical advice on how to counter common problems and how to check that the previously
made design is sound.