PM5364 pmc-sierra, PM5364 Datasheet - Page 22

• Manufacturer Part Number: PM5364
• Description: Tupp 2488 Assp Telecom Standard
• Manufacturer: pmc-sierra

2.2.2
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2011334, Issue 7
Tributary Traffic Payload-Processing Features
The following additional payload processing features are available for VT/TU mapped
payloads:
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o AU4/VC4/TUG3/TU3/VC3/C3 to 3x AU3/VC3/C3
o AU4/VC4/TUG3/TUG2 to 3x AU3/VC3/TUG2
Translates pointer justifications in high order payloads (STS-1/STM-0, AU4, AU3) to
pointer justifications in low order payloads (VT6, VT3, VT2, VT1.5, TU3, TU2, TU12, or
TU11), resulting in all VT/TUs being located in fixed columns of the transport frame.
Configurable to enforce a minimum three multiframe spacing between consecutive inserted
outgoing low order tributary pointer justifications.
Provides software configurable offset between the payload frame boundaries (J1) and the
H3 byte of the transport overhead (H1, H2 pointer = 0 or 522).
Supports any legal mix of VT1.5, VT2, VT3, VT6, TU11, TU12, TU2, or TU3 tributaries.
Each VT group or TUG2 can be configured to carry one of four tributary types. TUG2s can
be multiplexed into VC3s or TUG3s. Each TUG3 can also be configured to carry a single
TU3.
Supports 16-byte or 64-byte format tributary path trace messages (tributary trail trace
identifiers).
Supports H4 framing to determine tributary multiframe boundaries. Inserts internally
generated H4 bytes with tributary multiframe indicator.
Extracts and serializes the entire tributary path overhead of each tributary (VT1.5, VT2,
VT3, VT6, TU11, TU12, TU2, or TU3) into serial streams.
Extracts tributary size (SS) bits of each tributary into internal registers.
Detects tributary loss of pointer (LOP) and re-acquisition for each tributary and optionally
generates interrupts.
Detects tributary path alarm indication signal (AIS) and return to normal state for each
tributary and optionally generates interrupts.
Optionally translates high order path AIS to tributary AIS.
Detects tributary elastic store underflow and overflow errors and optionally generates
interrupts.
Extracts tributary path trace message (trail trace identifier) of each tributary into internal
buffers.
Provides individual tributary path trace message buffer that holds the expected message and
detects tributary path trace mismatch (trail trace identifier mismatch) alarms (TIM) and
return to matched state for each tributary and optionally generates interrupts.
Note: Mixing AU3/VC3/C3 and AU3/VC3/TUG2 payloads in an AU4 during AU3 to AU4 or
AU4 to AU3 conversion is not supported.
TUPP™ 2488 ASSP Telecom Standard Product Data Sheet
Released
22