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3CC08991ATAA TQ BJA 01
Issue 01 -- March 2004
The above mentioned outdoor units configurations must be associated with one of the following indoor units
configurations:
IDU CONFIGURATION
APPLICATIONS
1+0
classic IDU
Light IDU
Non--protected
1+1 BASIC
PROTECTION
MAIN IDU (classic)
EXTENSION IDU (without
MUX--DEMUX option)
Automatic switching:
selection of the best
receive path and
operational transmitter (in
case of HSB)
1+1 WITH
MUX--DEMUX
PROTECTION
MAIN IDU
EXTENSION IDU (with
MUX--DEMUX option)
ACCESS IDU
Automatic switching:
selection of the best
receive path and
operational transmitter (in
case of HSB)
Protection of the
tributaries access
including redundant
mux--demux
2.1.3 -- ALCATEL 9400 UX features
2.1.3.1 -- Equipment flexibility
Software controlled frequency:
The in--field agility of the 9400 UX is provided on a quarter frequency plan (synthesizer step 250 kHz). Only four
different ODUs maximum are needed to cover the full frequency band.
Figure 2 -
Sub- band breakdown
The synthesized , software controlled, RF local oscillator allows an easy frequency setting.
Software controlled capacity:
The Alcatel 9400 UX system provides unique capacity agility features, controlled by software up to a maximum
bit rate. This maximum can be adjusted from 2x2 Mbit/s to 16x2 Mbit/s using the appropriate software key.
The system capacity can be configured, by software, between 2x2 Mbit/s and the maximum authorized by the
software key.
Moreover, capacity upgrade can be made easily changing only the software key without hardware change.
Transmit power control:
In certain cases, the output power of the equipment has to be decreased, to reduce interference towards other
links in case of very short hops. This feature improves the flexibility of the network design and furtherly more
increases the frequency re--use.
Different implementations of transmit power control are available depending on the frequency bands:
--
At 13 GHz (3CC09297Axxx),15 GHz (3CC08880Axxx and 3CC08978Axxx) and 18 GHz, insertion of
fixed attenuators (of 3, 6 or 10 dB) on transmission side in the IDU unit.
--
for the 13 GHz 4QAM (3CC11737Axxx) and the 16QAM (3CC 11736Axxx), a software transmit power
control of 20 dB in 1 dB step can be provided (as a software key option with classic IDU, embedded
within the Light IDU)
--
for the 15 GHz 4QAM (3CC12979Axxx), a software transmit power control of 30 dB in 1 dB step can
be provided (as a software key option with classic IDU, embedded within the Light IDU)
--
in the millimetric frequency bands (23 to 38 GHz), a software transmit power control of 30 dB in 1 dB
step for the 4QAM and of 20 dB in a 1 dB step for the 16 QAM, can be provided (as a software key option
with classic IDU, embedded within the Light IDU).
Summary of Contents for 9400 UX
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