
DATASHEET
PM5349 S/UNI-QUAD
ISSUE 6 | SATURN USER NETWORK INTERFACE | |
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13.1.2Transport and Path Overhead Bytes
Under normal operating conditions, the
Figure 11: STS-3c (STM-1) Overhead
A 1 | A 1 | A 1 | A 2 | A 2 | A 2 | J 0 | Z 0 | Z 0 |
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B 1 |
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| B 3 |
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| C 2 |
H 1 | H 1 | H 1 | H 2 | H 2 | H 2 | H 3 | H 3 | H 3 | G 1 |
B 2 | B 2 | B 2 | K 1 |
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| K 2 |
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| H 4 |
S 1 | M 1 |
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| T R A N S P O R T O V E R H E A D | P A T H O V E R H E AD |
| S O H | P O H |
Transport Overhead Bytes
A1, A2: The frame alignment bytes (A1, A2) locate the SONET/SDH frame in the
Z0:The Z0 bytes are currently defined as the
B1:The section bit interleaved parity byte provides a section error monitoring function.
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