PM5366 datasheet(18/267 Pages) PMC

18 / 267 page

PRELIMINARY

PM5366 TEMAP-84

DATASHEET

PMC-2010672

ISSUE 1

HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER

AND M13 MULTIPLEXER

PROPRIETARY AND CONFIDENTIAL

• Inserts valid H4 byte and all-zeros fixed stuff bytes. Remaining path overhead

bytes (J1, B3, C2,G1, F2, Z3, Z4, Z5) are set to all-zeros.

• Inserts valid pointers and all-zeros transport overhead bytes on the outgoing

Telecom Add bus, with valid control signals.

• Support in-band error reporting by updating the FEBE, RDI and auxiliary RDI bits

in the V5 byte with the status of the incoming stream and remote alarm pins.

• Calculates and inserts the tributary path BIP-2 error detection code for each

tributary.

Each one of three SONET/SDH VT/TU Mapper Sections:

• Inserts up to 28 bit asynchronous mapped VT1.5 virtual tributaries into an STS-1

SPE from T1 streams.

• Inserts up to 28 bit asynchronous mapped TU-11 tributary units into a STM-

1/VC4 TUG3 or STM-1/VC3 from T1 streams.

• Inserts up to 28 byte synchronous mapped VT1.5 virtual tributaries into an STS-1

SPE or TU-11 tributary units into an STM-1/VC3 or TUG3 from a STM-1/VC4.

• Inserts up to 21 bit asynchronous mapped VT2 virtual tributaries into an STS-1

SPE from E1 streams.

• Inserts up to 21 bit asynchronous mapped TU-12 tributary units into an STM-

1/VC4 TUG3 or STM-1/VC3 from E1 or T1 streams.

• Processes the tributary trace message (J2) of the tributaries carried in each

STS-1/TUG-3 synchronous payload envelope.

• Bit asynchronous mapping assigns stuff control bits for all streams independently

using an all digital control loop. Stuff control bits are dithered to produce

fractional mapping jitter at the receiving desynchronizer.

• Sets all fixed stuff bits for asynchronous mappings to zeros or ones per

microprocessor control

• Extracts up to 28 bit asynchronous mapped VT1.5 virtual tributaries from an

STS-1 SPE into T1 streams via an optional elastic store.

• Extracts up to 28 bit asynchronous mapped TU-11 tributary units from an STM-

1/VC4 TUG3 or STM-1/VC3 into T1 streams via an optional elastic store.

PM5366 датащи(PDF) 18 Page - PMC-Sierra, Inc