Alcatel-Lucent 9500 MXC User Manual page 402

Chapter 7. Node and Terminal Plug-ins
Vol. IV-7-12
• For all Node protected configurations except Ring, the selected bandwidth /
modulation is common to both RACs.
9500 MXC Node modulation options are QPSK, 16QAM, 32QAM, 64QAM,
128QAM or 256QAM, but in the Bandwidth/Modulation menu only the modulation
options appropriate to the selected capacity and RAC type installed are
presented. For example, 16xE1 only presents Bandwidth/Modulation options of
28 MHz / QPSK or 14 MHz / 16QAM. Similarly, for the Terminal, modulation
options also depend on the IDU/ODU type and selected capacity.
4. Modem Profile Settings. The modem profile(s) for the RAC Plug-in is
displayed.
• For a RAC 30
it confirms compatibility action and options between RAC 30
versions V1, V2 and V3.
• For a RAC 40 under SW 4.0 or later, it indicates current and supported
settings of Auto, Standard, or Legacy. Selection should be left at Auto
(default) in all instances except where it is necessary to repair link operation
between a RAC 40 under SW 3.3 or earlier, and a RAC 40 under SW 3.4.to
3.7. For more information refer to RAC 40 under Configuring a Link/Ring
on page 7-3.
• For a RAC 3x it indicates Standard RAC 3x.
5. Polarization Settings. This panel is only prompted for a co-channel link
(RAC 40). Data entered is informational only. The partner entry should
include its slot number, and where installed in a co-located INU/INUe, its IP
address.
6. Frequency. The displayed Tx Frequency Range, Tx high or Tx low, and the
choices of Tx/Rx spacing are read from the installed ODU. Settings outside
the allowable ranges are not accepted.
• For ODU 300hp and ep the T/R spacing can be set to a spacing outside the
menued T/Rs for frequency bands 18 GHz and below, providing it is within
constraints determined by the ODU/diplexer. For higher bands the T/R can
only be selected from the T/R drop-down menu.
• Setting Tx frequency and T/R spacing automatically sets the Rx frequency.
Tx frequency is direct entered in 250 kHz steps. Values outside the 250 kHz
step points are not accepted. Tx/Rx spacing may be selected from its
drop-down menu, or direct entered.
• Tx/Rx spacing shows as a +ve MHz value for a Tx low ODU and as -ve
value for Tx high.
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