PM5363 TUPP+622
TUPP+622
DATASHEET
PMC-1981421
ISSUE 4
SONET/SDH TRIBUTARY UNIT PAYLOAD PROCESSOR FOR 622 MBIT/S
INTERFACES
6
DESCRIPTION
The PM5363 TUPP+622 SONET/SDH Tributary Unit Payload Processor For 622
Mbit/s Interfaces is a monolithic integrated circuit that implements a configurable,
multi-channel, payload processor that aligns and monitors performance of
SONET virtual tributaries (VTs) or SDH tributary units (TUs.).
When configured for SONET compatible operation, the TUPP+622 transfers all
incoming tributaries in the twelve STS-1 synchronous payload envelopes of an
STS-12 or four STS-3 byte serial streams to the corresponding twelve STS-1
synchronous payload envelopes of an outgoing STS-12 or four outgoing STS-3
byte serial streams. Similarly, when configured for SDH compatible operation, the
TUPP+622 transfers all incoming tributaries in the four AU4 or twelve AU3
administrative units of an STM-4 or four STM-1 byte serial streams to the
corresponding four AU4 or twelve AU3 administrative units of an outgoing STM-4
or four outgoing STM-1 byte serial streams. The TUPP+622 compensates for
pleisiochronous relationships between incoming and outgoing higher level (STS-
1, AU4, AU3) synchronous payload envelope frame rates through processing of
the lower level (VT6, VT3, VT2, VT1.5, TU3, TU2, TU12, TU11) tributary pointers.
The incoming and outgoing data streams are configurable independently.
The TUPP+622 is configurable to process any legal mix of tributaries. Each VT
group can be configured to carry any one of the four tributary types (VT1.5, VT2,
VT3, or VT6) and each TUG2 can be configured to carry any one of three
tributary types (TU11, TU12, or TU2). TUG2s can be multiplexed into a VC3 or a
TUG3. Alternatively, each TUG3 can be configured to carry a TU3.
The TUPP+622 operates in conjunction with the PM5313 SPECTRA-622
SONET/SDH Payload Extractor/Aligner For 622 Mbit/s or the PM5342
SPECTRA-155 SONET/SDH Payload Extractor/Aligner to align tributaries such
that they can be switched by the PM5371 TUDX SONET/SDH Tributary Unit
Cross-Connect.
The TUPP+622 provides useful maintenance functions. They include, for each
tributary, detection of loss of pointer, detection of AIS alarm, detection of tributary
path signal label mismatch and unstable alarms, detection of tributary path trace
mismatch and unstable alarms. Optionally, interrupts can be generated due to the
assertion and removal of any of the above alarm conditions. The TUPP+622
counts received tributary path BIP-2 (BIP-8 for TU3) errors on a block or bit basis
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
13
PMC [ PMC-SIERRA, INC ]
