PM5344 datasheet(17/212 Pages) PMC

17 / 212 page

PM5344 SPTX

DATA SHEET

PMC-930531

ISSUE 6

SONET/SDH PATH TERMINATING TRANSCEIVER

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

· Maintains existing pointer value during incoming signal failures in tandem

path terminating mode.

· Maintains the existing tributary multiframe sequence on the H4 byte until a

new phase alignment has been verified.

· Provides a "Telecombus" line side receive interface when path termination is

done by an upstream device.

· Provides a serial alarm port communication of FEBE and path FERF alarms

to the transmit stream in the returning direction.

1.2

The transmitter section:

· Operates in STS-1 (AU3) or STS-3c (AU4) mode.

· Accepts a byte serial multiplex of three STS-1 (AU3) streams or an STS-3c

(AU4) stream, extracts the synchronous payload envelope(s) and inserts the

synchronous payload envelope(s) with a generated pointer into the transmit

system, using pointer processing.

· Supports system side "Telecombus" interfaces by accepting indications of the

location of the STS identification byte (C1), the path trace byte(s) (J1), the

first tributary overhead byte(s) (V1), and all synchronous payload envelope

bytes in the byte serial stream.

· Provides line side "Telecombus" interface on the transmit stream indicating

the location of the STS identification byte (C1), the path trace byte(s) (J1), the

first tributary overhead byte(s) (V1), and all synchronous payload envelope

bytes.

· Accomodates phase and frequency differences between the ADD bus and

the transmit stream via pointer adjustments in the transmit stream.

· Optionally inserts STS path alarm indication signal (AIS).

· Optionally inserts STS path FERF alarm.

· Inserts the path overhead bytes in the three STS-1 (AU3) or single STS-3c

(AU4) stream. The path overhead bytes may be sourced from internal

registers or from bit serial path overhead input streams. Path overhead

insertion may also be disabled.

· Optionally calculates and inserts path BIP-8 error detection codes.

PM5344 Datasheet(PDF) 17 Page - PMC-Sierra, Inc