Task 7: Configure wireless interface
Chapter 6 Configuration and alignment
phn-0896_012v000
6-60
Jul 2010
Attribute
Meaning
Link Symmetry
(Master only) Values of "Adaptive", "2 to 1", "1 to 1" and "1 to
2" can be selected. The adaptive setting allows link symmetry
to vary dynamically in response to offered traffic load. The
remaining values select three options for fixed division
between transmit and receive time in the TDD frame of the
master ODU. The first number in the ratio represents the
time allowed for the transmit direction and the second
number represents the time allowed for the receive direction.
The appropriate matching Link Symmetry is set at the slave
ODU automatically. For example, if Link Symmetry is
configured as ‘2 to 1’ at the master ODU, then the slave ODU
will be set automatically as ‘1 to 2’. In this example, the
master-slave direction has double the capacity of the slave-
master direction.
Link Symmetry is subject to the following restrictions:
‘Adaptive’ is not supported in regions where radar
avoidance is in use.
‘Adaptive’ is not supported when link optimization is set
to ‘TDM’.
‘Adaptive’ is not supported in 5 MHz channel bandwidth.
‘2 to 1’ and ‘1 to 2’ are not supported in 5 MHz channel
bandwidth.
‘2 to 1’ and ‘1 to 2’ are not supported when E1/T1
services are enabled.
Spectrum
Management
Control
Is used to configure the PTP 600 Series Spectrum
Management features, see
Managing spectrum
on page
7-22
for more details. In regions that do not mandate DFS (Radar
Detection), the Spectrum Management Control options are ‘i-
DFS’ and ‘Fixed Frequency’. In regions that mandate DFS
(Radar Detection), the Spectrum Management Control
options are ‘DFS’ and ‘DFS with i-DFS’.
The Spectrum Management Control is disabled if the
regulatory requirement is fixed frequency only (for example if
the frequency variant is PTP 25600).
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