PMC PM5312 Datasheet

PMC-Sierra,Inc.

SONET/SDH Transport Overhead Terminating Transceiver

PM5312

STTX

FEATURES

• Monolithic, SONET/SDH Transport
Overhead Terminating Transceiver for
use in STS-1, STS-3 (STM-1), or
STS-12 (STM-4) applications .

• Operates in STS-1 bit-serial mode,
STS-1 byte-serial mode, STS-3/STM-1
byte-serial mode, or STS-12/ATM-4
byte-serial mode.

• Compatible with PM5355 S/UNI-622
physical layer interface, PM5344
SPTX SONET/SDH Path Terminating
Transceiver, and with comm erc ial ly
available 622 Mbit/s serial-to-parallel
conversion devices.

• Performs byte-interle aved m ultipl exing
of lower-rate, drop-side, SONET/SDH
data streams.

• Optionally inserts the framing bytes
(A1 and A2) and the STS identific ati on
bytes (C1) in to the transmit stream.

• Performs frame synchronous
descrambling and scrambling.

• Compares the bit-interleaved parity
error detection codes (B1 and B2) for
the receive stream. Inserts B1 and B2
in the transmit stream.

• Inserts line Far-End Block Errors
(FEBEs) into the Z2 gro wth byte base d
on received B2 errors.

• Accumulates near-end errors (B1 and
B2) and far-end errors (Z2).

• Extracts and inserts the order wire
channels (E1 and E2).

• Extracts and inserts the data
communications channels (D1-D3 and
D4-D12).

• Extracts and inserts the section user
channel (F1).

• Extracts and inserts the Automatic
Protection Switch (APS) channel (K1
and K2). The receive APS bytes are
also filtered and extracted into internal
registers.

• Detects Loss Of Signal (LOS), Out Of
Frame (OOF), Loss Of Frame (LOF),
Far-End Receive Failure (FERF), line
Alarm Indication Signal (AIS), and
protection switching byte failure
alarms.

• Inserts FERF and AIS in the transmit
stream.

• Provides LOS insertion, framing
pattern error insertion, and coding

violation insertion (B1 and B2) for
diagnostic purposes. B1 and B2 error
can also be generated “on-the-fly”
using an error insertion mask.

• Provides a transmit and receive ring
control port, allowing alarm and
maintenance signal control and status
to be passed between mate STTXs for
applications in ring-bas ed add/d rop
multiplexers.

• Low power, +5 V, CMOS technology.
Device has TTL/CMOS-compatible
inputs and outputs.

• Available in a high performance 208­pin copper slugged (28 by 28 mm)
Plastic Quad Flat Pack (PQFP)
package.

APPLICATIONS

• OC-N to OC-M Multiplexers

• SONET/SDH Add/Drop Multiplexers

• SONET/SDH Terminal Multiplexers

• ATM Transm ission Systems

• Broadband ISDN User Network
Interfaces (UNIs)

• SONET/SDH Test Equipment

BLOCK DIAGRAM

Line Side System Side

TOFP

TOUT[7:0]

TSOUT

TSICLK

RICLK

RIFP

RIN[7:0]

RSIN

RSICLK

TLAIS/TRCPDAT

TFERF/TRCPFP

Transmit

Ring Control

Port

Par/Ser

Ser/Par

Receive Ring

Control Port

RLAIS/TRCPCLK

Transmit Section

(Regenerator Section)

O/H Processor

Receive Section

(Regenerator

Section)

O/H Processor

GTICLK

TSDCLK

TSD

TSOW

TSUC

TOWCLK

Transmit Line

(Multiplexer Section)

O/H Processor

Receive Line

(Multiplex er Section)

O/H Processor

SCPO[5:0]

Status Control

SCPi[3:0]

Port

Demultiplex

Microprocessor

Interface

TCLK

Byte

Interleaved

Multiplex

Byte

Interleaved

TTOHFP

TTOHCLK

TTOH[4:1]

Transmit

O/H

Access

Receive O/H

Access

TTOHEN

TDIS
TIFP
TICLK
TIN4[7:0]
TIN3[7:0]
TIN2[7:0]
TIN1[7:0]

ROFP
ROCLK
ROUT4[7:0]
ROUT3[7:0]
ROUT2[7:0]

ROUT1[7:0]

B1E

LOF

OOF

LOS/RRCPFP

PMC-931128 (R6)  1998 PMC-Sierra, Inc. September, 1998

ERF/RRCPCLK

LAIS/RRCPDAT

RSD

RSUC

RSOW

RSDCLK

ROWCLK

B2E

RLD

RAPS

RLOW

RLDCLK

RAPSCLK

ALE

RDB

D[7:0]

A[4:0]

WRB

A[5]/SCSB

CSB/LCSB

SLIM

RSTB

SINTB

INTB/LINTB

RTOHFP

RTOH[4:1]

RTOHCLK

PM5312 STTX

SONET/SDH Transport Overhead Terminating Transceiver

TYPICAL APPLICATIONS

622 Mbit/s STS-12/STM-4 ASYNCHRONOUS TRANSFER MODE MULTIPLEXER

STS-3c (STM -1)

STS-3c (STM-1) To STS-12 (STM-4) Mux

ATM

Termination**

622 Mbit/s Front End *

Optical
Facility

E/O

Clock

Synthesis

OOF
TOUT[7:0]

PM5312

STTX

SONET/SDH Transport

Overhead Terminating

Transceiver

** S/UNI-622 operating in STS-3c mode.

O/E

Parallel to/
from Serial

Conversion

TCLK
RICLK
RIFP

RIN[7:0]

Clock

Recovery

* Contact PMC-Sierra Applications regarding 622
Mbit/s front-end alternatives.

622 Mbit/s STS-12/STM-4 ADD-DROP MULTIPLEXER AGGREGATE INTERFACE

STS-3c (STM-1)

STS-3c (STM-1) To STS-12 (STM-4) Mux

622 Mbit/s Front End *

Optical
Facility

E/O

O/E

Clock

Synthesis

Parallel to/
from Serial

Conversion

Clock

Recovery

OOF
TOUT[7:0]
TCLK
RICLK
RIFP
RIN[7:0]

PM5312

STTX

SONET/SDH Transport

Overhead Terminating

Transceiver

PM5355

S/UNI-622

PM5355

S/UNI-622

PM5355

S/UNI-622

PM5355

S/UNI-622

Path

Termination

PM5344

SPTX

PM5344

SPTX

PM5344

SPTX

PM5344

SPTX









ATM

Switch

Core

Add-Drop

Mux

Backplane

Head Office:
PMC-Sierra, Inc.
#105 - 8555 Baxter Place
Burnaby, B.C. V5A 4V7
Canada
Tel: [phone]
Fax: [phone]

* Contact PMC-Sierra Applications regarding 622
Mbit/s front-end alternatives.

To order documentation,
send email to:
[e-mail]
or contact the head office,
Attn: Document Coordinator

All product documentation is available
on our web site at:
http://www.pmc-sierra.com
For corpo rate information,
send email to:
[e-mail]

PMC-931128 (R6)
 1998 PMC-Sierra, Inc.
September, 1998
S/UNI-622 is a trademar k
of PMC-Sierra, Inc.