PM5316 datasheet(45/491 Pages) PMC

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SONET/SDH Payload Extractor/Aligner (SPECTRA-4x155)

Production

Proprietary and Confidential to PMC-Sierra, Inc. and for its customers’ internal use

Document ID: PMC-1990822, Issue 4

Pin Name

Type

No.

Function

PSLU, PSLM, TIU-P, TIM-P status of the corresponding stream. In

Addition to these alarms, the LOS (LOS), LOF (LOF) or line AIS

(LAIS) in the corresponding STS-3 (STM-1) SONET/SDH streams

can also be reported on RALM. The RPPS RALM Output Control #1

and #2 registers control the selection of alarms to be reported.

RALM is updated on the falling edge of RPOHCLK and may

transition anywhere during the individual STS-1 time slot period.

The loss of pointer signal (LOP) indicates the loss of pointer state in

the corresponding STS-1 (STM-0/AU-3) or STS-3c (STM-1/AU-4)

SONET/SDH stream. LOP is set high when invalid pointers are

received in eight consecutive frames, or if eight consecutive enabled

NDFs are detected in the stream.

The path alarm indication signal (PAIS) indicates the path AIS state

of the corresponding STS-1 (STM-0/AU3) or STS-3c (STM-1/AU4)

SONET/SDH stream. PAIS is set high when an all-ones pattern is

observed in the pointer bytes (H1 and H2) for three consecutive

frames in the stream.

The path remote defect indication signal (PRDI) indicates the path

remote state of the corresponding STS-1 (STM-0/AU-3) or STS-3c

(STM-1/AU-4) SONET/SDH stream. PRDI is set high when the path

RDI alarm bit (bit 5) of the path status (G1) byte is set high for five or

ten consecutive frames. The RDI10 bit in the RPOP Pointer MSB

PRDI indication.

The path enhanced remote defect indication signal (PERDI)

indicates the path enhanced remote state of the corresponding STS-

1 (STM-0/AU-3) or STS-3c (STM-1/AU-4) SONET/SDH stream.

PERDI is set high when the path ERDI alarm code (bits 5,6,7) of the

path status (G1) byte is set to the same alarm codepoint for five or

ten consecutive frames. The RDI10 bit in the RPOP Pointer MSB

PRDI indication.

The loss of multiframe signal (LOM) indicates the tributary multiframe

synchronization status of the corresponding STS-1 (STM-0/AU3) or

STS-3c (STM-1/AU-4) SONET/SDH stream. LOM is set high if a

correct four frame sequence is not detected in eight frames.

The loss of pointer concatenation and path AIS concatenation

signals (LOPCON and PAISCON) are the concatenated alarms for

STS-3c (STM-1/AU-4) SONET/SDH streams.

The receive path unequipped status (UNEQ) indicates the

unequipped status of the path signal label of the corresponding STS-

1 (STM-0/AU-3) or STS-3c (STM-1/AU-4) SONET/SDH stream.

UNEQ is set high when the filtered path signal label indicates

unequipped and is dependent on the selected UNEQ mode.

The receive path signal label unstable status (PSLU) reports the

stable/unstable status (mode 1) of the path signal label in the

corresponding STS-1 (STM-0/AU-3) or STS-3c (STM-1/AU-4)

SONET/SDH stream. PSLU is set high when the current received C2

byte differs from the previous C2 byte for five consecutive frames.

The receive path signal label mismatch (PSLM) status reports the

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