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Setting the Interfaces
Setting SDH Transmit Interface
8 Choose the payload framing under PAYLOAD TYPE or TU PAYLOAD.
If
If
Transmit Structured Payload/Test Signal" page 70.
If
page 76.
If you have chosen 2 Mb/s, DS1 or DS3 under Mapping, the Framed choice is
expanded to provide a menu of framing types.
9 If 2 Mb/s framing
values. See "Setting up Signaling Bits " page 67
10 Choose the PATTERN type and PRBS polarity. See Note below.
11 Choose the mapping required in the background (non-test) TUG-3s. Refer to
Appendix A for a table of background patterns for AU-3 and TUG-3.
12 If TU-12 mapping is chosen for the test TUG-3, choose the PATTERN IN
OTHER TU-12s.
N O T E
The definition of NORMAL and INVERTed polarity differs between ITU-T O.150
and common practice usage in the United States of America for 2
PRBS patterns.
32
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is required
STRUCTURED
is chosen, the Payload test signal must be set up. See "Setting
STRUCTURED
is chosen, see "Inserting an External PDH/DSn Payload/Test Signal"
INSERT
or
PCM30
must be chosen.
FRAMED
is chosen, set the CAS ABCD bit
PCM30CRC
15
23
-1 and 2
-1
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