- Fixed LED:
1. Software downloading
2. Initialization phase, waiting for synchronization
3. Software problem, IBS stopped.
- Fast blink: There is a problem with the line.
- Short ON, long OFF: Running on 1 UA link.
- 500ms OFF, 500ms ON: Running on 2 UA link.
The IBSs can run and be powered remotely by the UA access (this is the most common
configuration). But they can also be powered by a power device. This is used when there are a
lot of IBSs and the system power cannot support all the connected IBSs.
A base station may be connected to 1 or 2 UA links (UAI boards) and allows 3 or 6
simultaneous connections with DECT/GAP terminals.
The need for three or six communication channels depends on the number of cordless stations
and on the DECT traffic to be managed.
In the event of a two-cable connection:
- use two interfaces neighboring a UAI board
- use the even-numbered interface for the master link and the other for the slave link.
Both cables should have the same length. The first interface of the system’s UAI16 board
should not be used since the operator station uses those points.
4.10.1.2 NUMBER OF USEFUL BASE STATIONS
Any radio signal is subject to various propagation phenomena: attenuation, reflection and
diffraction. These phenomena are related to the environment of the Alcatel-Lucent 4070
IO/EO, and affect the radio performance of the system.
The effects can improve or deteriorate wave propagation.
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