PM5366-PI PMC-Sierra, Inc., PM5366-PI Datasheet - Page 19

• Manufacturer Part Number: PM5366-PI
• Description: HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER AND M13 MULTIPLEXER
• Manufacturer: PMC-Sierra, Inc.

PRELIMINARY
DATASHEET
PMC-2010672
PROPRIETARY AND CONFIDENTIAL
• Extracts up to 21 bit asynchronous mapped VT2 virtual tributaries from an STS-1
• Extracts up to 21 bit asynchronous mapped TU-12 tributary units from an STM-
• Demapper ignores all transport overhead bytes, path overhead bytes and stuff
• Performs majority vote C-bit decoding to detect stuff requests.
• Maps a DS3 stream into an STS-1 SPE (AU3).
• Sets all fixed stuff (R) bits to zeros or ones per microprocessor control
• Extracts a DS3 stream from an STS-1 SPE (AU3).
• Demapper ignores all transport overhead bytes, path overhead bytes and stuff
• Performs majority vote C-bit decoding to detect stuff requests
• Complies with DS3 to STS-1 asynchronous mapping standards
• Frames to a DS3 signal with a maximum average reframe time of less than 1.5
• Decodes a B3ZS-encoded signal and indicates line code violations. The
• Provides indication of M-frame boundaries from which M-subframe boundaries
• Detects the DS3 alarm indication signal (AIS) and idle signal. Detection
• Detection times of 2.23 ms and 13.5 ms are supported. The fast detection time
SPE into E1 streams via an optional elastic store.
1/VC4 TUG3 or STM-1/VC3 into E1 or T1 streams via an optional elastic store.
(R) bits
Each one of three SONET/SDH DS3 Mapper Sections:
(R) bits
Each one of three DS3 Receiver Sections:
ms (as required by TR-TSY-000009 Section 4.1.2 and TR-TSY-000191 Section
5.2).
definition of line code violation is software selectable.
and overhead bit positions in the DS3 stream can be determined by external
processing.
algorithms operate correctly in the presence of a 10
meets the requirement of TR-TSY-000191 Section 5. The longer detection time
ISSUE 1
7
-3
HIGH DENSITY 84/63 CHANNEL VT/TU MAPPER
bit error rate.
AND M13 MULTIPLEXER
PM5366 TEMAP-84