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Synchronizing Pattern How the Frame Generator Works
Agilent 81250 ParBERT SONET/SDH Frame Generator, November 2002 21
When inserting a binary payload, you have to make sure that this
pattern (with scrambling) is not used within the payload.
The following table shows how the payload size is determined by the
segment width and the different rates.
Table 3 Possible Combinations of Rate and Segment Width
Segment width
a
STM-1 /
STS-3
STM-4 /
STS-12
STM-16 /
STS-48
STM-64 /
STS-192
STM256 /
STS-768
1 48 Bits 48 Bits 48 Bits 48 Bits 48 Bits
2
96 Bits 96 Bits 96 Bits 96 Bits 96 Bits
4
192 Bits 192 Bits 192 Bits 192 Bits 192 Bits
8 384 Bits 384 Bits 384 Bits 384 Bits 384 Bits
12
576 Bits 576 Bits 576 Bits 576 Bits 576 Bits
16
768 Bits 768 Bits 768 Bits 768 Bits 768 Bits
D1-D3 (in Bits) 72 Bits 288 Bits 1152 Bits 4608 Bits 18432 Bits
a
Note: The areas in gray are unavailable combinations.