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Setting the Interfaces
Setting SDH Transmit Interface
B/G MAPPING
selection is the channel that is chosen for test purposes.The BACKGROUND
patterns are not used for test purposes and are either the same as the test channel
or set to UNEQUIPPED.
Mapping may be selected from a pictorial display by moving the cursor to
MAPPING and pressing
Use
Payload Layer Selection. Use
selection.
5 If TU-2 mapping is chosen, TU CONCATENATION selection is enabled.
Choose
through TU2-6C).
The BACKGROUND, PATTERN IN OTHER TU2s is fixed at NUMBERED,
that is, each TU-2 contains a unique number to allow identification in case of
routing problems.
6 If required, choose DS1/2M/34M/DS3/140M OFFSET value. See "Adding
Frequency Offset to SDH Signal" page 64
7 If TU-3, TU-2, TU-12 or TU-11 mapping is chosen, choose the test tributary ,
including the STM-1 for an STM-4/STM-16 signal.
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and BACKGROUND selection. The FOREGROUND
SET
.
and
to move between AU Layer Selection, TU Layer Selection and
and
or the tributary at which the concatenation begins (TU2-2C
OFF
to set the mapping and
SET
to set your
31
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