PM5316 datasheet(21/491 Pages) PMC

21 / 491 page

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

• Calculates and compares the bit interleaved parity (BIP) error detection codes (B1, B2) for

the receive stream and calculates and inserts B1 and B2 in the transmit stream; accumulates

near end errors (B1, B2) and far end errors (M1) and inserts line remote error indications

(REI) into the Z2 (M1) growth byte based on received B2 errors.

• Detects signal degrade (SD) and signal fail (SF) threshold crossing alarms based on received

B2 errors.

• Extracts and serializes the order wire channels (E1, E2), the data communication channels

(D1-D3, D4-D12) and the section user channel (F1) from the receive stream, and inserts the

corresponding signals into the transmit stream.

• Extracts and serializes the automatic protection switch (APS) channel (K1, K2) bytes,

filtering and extracting them into internal registers for the receive stream. Inserts the APS

channel into the transmit stream.

• Extracts and filters the synchronization status message (Z1/S1) byte into an internal register

for the receive stream. Inserts the synchronization status message (Z1/S1) byte into the

transmit stream.

• Extracts a 64-byte or 16-byte section trace (J0) message using an internal register bank for the

receive stream. Detects an unstable section trace message or mismatch with an expected

message, and optionally inserts Line and Path AIS on the system Drop side upon either of

these conditions. Inserts a 64-byte or 16-byte section trace (J0) message using an internal

• Detects loss of signal (LOS), out-of-frame (OOF), loss-of-frame (LOF), line remote defect

indication (RDI), line alarm indication signal (LAIS), and protection switching byte failure

alarms on the receive stream. Optionally returns line RDI in the transmit stream.

• Provides a transmit and receive ring control port, allowing alarm and maintenance signal

control and status to be passed between mate SPECTRA-155s for ring-based Add/Drop

multiplexer and line multiplexer applications.

• Configurable to force Line AIS in the transmit stream.

1.3

SONET Path / SDH High Order Path

• Accepts a multiplex of three STS-1 (STM-0/AU-3) streams or a single STS-3c (STM-1/AU-

4) stream, interprets the STS (AU) pointer bytes (H1, H2, and H3), extracts the synchronous

payload envelope(s) and processes the path overhead for the receive stream.

• Constructs a byte serial multiplex of three STS-1 (STM-0/AU-3) streams or an STS-3c

(STM-1/AU-4) stream on the transmit side.

• Detects loss of pointer (LOP), loss of tributary multiframe (LOM), path alarm indication

signal (PAIS) and path (auxiliary and enhanced) remote defect indication (RDI) for the

receive stream. Optionally inserts PAIS, path RDI in the transmit stream.

PM5316 Datasheet(PDF) 21 Page - PMC-Sierra, Inc