The SDH Access Tester application
Page 56 Acterna ANT-5
4.4.10 Channel Setup Rx
Selecting the Channel element for the receiver
side opens the Channel Setup Rx panel,
allowing selection of the SDH tributary channel
which is to be tested.
This element will not be available if a PDH
interface has been selected.
The Rx channel is selected by entering the
discrete TUG and TU numbers for the channel
in the appropriate window. See Section 4.4.4, Channel Setup Tx, for further details.
4.4.11 PDH Setup Rx
Selecting the PDH element for the receiver
side opens the PDH Setup Rx panel, allowing
selection of the PDH parameters for the test
signal.
The test signal is either detected from the SDH
Virtual Container if an SDH line interface has
been selected, or is detected directly from the
PDH line interface if a PDH line interface has
been selected.
Note: If an SDH line interface has been selected, only bit rates and framing types
appropriate for the SDH configuration will be displayed as options within this panel.
PDH Low Rate is only applicable if Nx64 testing is required, See Section 4.21.
4.4.12 Pattern Setup Rx
Selecting the Patterns element for the receive
path opens the Pattern Setup Rx panel,
allowing selection of the test pattern which will
be extracted from the SDH Rx channel or PDH
interface.
One pattern from a range of pattern types can
be selected, including the digital word pattern,
DW. If this is selected the content of the word
can be set up in the 16-Bit Word box which
appears below the Pattern Type selector. Inverted patterns are also available and are
indicated by an ‘I’ at the beginning of the pattern name, for example IPRBS23 is the
inverted form of the 2
23
-1 pattern, PRBS23.
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