STANDARD PRODUCT
PM5365 TEMAP
DATASHEET
PMC-1991148
ISSUE 3
HIGH DENSITY VT/TU MAPPER
AND M13 MULTIPLEXER
path signal label in the V5 byte of each tributary can be sourced from internal
registers. The tributary far end block error bit in the V5 byte of each tributary is
inserted based of the BIP error count detected at a companion RTOP TSB. The
tributary remote failure indication and remote defect indication bits in the V5 or
the Z7 byte of each tributary is inserted based on the tributary alarm status from
the companion Tributary Remote Alarm Processor, TRAP, TSB.
The TTOP inserts the tributary trail trace identifier into the J2 byte. Each
tributary is provided with a 64-byte buffer to store the identifier. One shadow
buffer is available for temporary replacement of a selected transmitted TTI while
the 64-byte identifier buffer is being updated. Data is retrieved sequentially from
the active buffer at each J2 byte position. The shadow buffer can be
programmed with new messages without timing constraints when inactive. An
inactive 64-byte identifier buffer can also be programmed with new messages
without timing constraints. Programming for TTI buffers is done one buffer at a
time by first programming the shadow buffer, switching to the shadow buffer for
the desired tributary, updating the desired tributary identifier buffer and finally
switching back from the shadow buffer to the tributary buffer. Switching between
the shadow buffer and normal buffer is synchronized to the start of each identifier
on a per-tributary basis.
9.21 Transmit Remote Alarm Processor (TRAP)
When configured for SONET compatible operation, the TRAP SONET/SDH
Transmit Remote Alarm Processor processes remote alarm indications of
tributaries in an STS-3 stream. The virtual tributaries within an STS-1 stream
may be configured to accept either VT1.5 or VT2 tributary types. The TRAP may
also be configured for SDH compatible operation. The incoming STM-1 stream
may carry three AU3s or an AU4 with three TUG3s.
The TRAP may be configured to insert tributary remote defect indications
(RDI-V) and tributary remote error indications (REI-V) via the TTOP block.
These indications may originate from three sources:
(1) Based on alarms detected in tributaries received on the Telecom Drop
bus, LDDATA[7:0]. The exact behavior is configured using the
SONET/SDH Master Tributrary Remote Defect Indication Control Register
and the SONET/SDH Master Tributary Auxiliary Remote Defect Indication
Register.
(2) Based on two independent serial alarm ports, RADEAST and RADWEST.
REI indications are generated based on the sampled BIP-2 error values.
RDI indications are based on the sampled RDI (Remote Defect Indication)
and RFI (Auxiliary Remote Defect Indication) values.
Proprietary and Confidential to PMC-Sierra, Inc. and for its Customers’ Internal Use
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PMC [ PMC-SIERRA, INC ]
