txc-03453b TranSwitch Corporation, txc-03453b Datasheet

txc-03453b

Manufacturer Part Number

txc-03453b

Description

Tl3m Device Triple Level Mapper

Manufacturer

TranSwitch Corporation

Datasheet

1.TXC-03453B.pdf (96 pages)

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U.S. Patents No.: 4,967,405; 5,040,170; 5,157,655; 5,265,096;

5,297,180; 5,289,507; 5,473,611; 5,535,218; 5,528,598; 6,463,111 B1

U.S. and/or foreign patents issued or pending

PHAST, TranSwitch and TXC are registered trademarks of TranSwitch Corporation

• Maps up to three independent DS3/E3 line formats into

• SDH/SONET bus access:

• Path overhead byte processing:

• Alarm indication port

• O-bit channel access via external interface

• Digital desynchronizer with internal pointer leak algorithm

• Line interface:

• Microprocessor access:

• Testing:

• A fully tested device driver is available

• 3.3 volt power supply, 5 volt tolerant inputs

• 324-lead plastic ball grid array package (23 mm x 23 mm)

FEATURES

SDH/SONET formats as follows:

- DS3 to/from STM-1/TUG-3

- DS3 to/from STS-3/STS-1

- E3 to/from STM-1/TUG-3

- Byte-wide drop and Add buses

- Drop bus timing mode (Add bus timing derived from

- Add bus timing mode (independent timing for

- Microprocessor access

- External interface

- B3 generation/detection with test mask

- B3 bit/block performance counters

- REI bit/block performance counters

- C2 mismatch detection

- C2 unequipped detection and generation

- Path REI count and RDI status for APS applications

- NRZ or P/N rail option for transmit and for receive

- Monitor NRZ transmit data

- Motorola or Intel compatible

- Hardware interrupt with mask bits

- Software polling bits

- Facility or line loopback

- PRBS generator/analyzer

- Boundary scan (IEEE 1149.1 standard)

Drop bus)

drop/Add buses)

SDH/SONET SIDE

(TELECOM BUS)

TranSwitch Corporation

Drop Bus

Add Bus

Tel: 203-929-8810

Interfaces

O-Bit

•

Microprocessor

3 Enterprise Drive

Interface

•

Triple Level 3 Mapper

Fax: 203-926-9453

Interfaces

External

Alarm

TXC-03453B

Indication

TL3M

Alarm

Port

DESCRIPTION

APPLICATIONS

Each of the three channels of the TL3M can map a DS3 line sig-

nal into an STM-1 TUG-3 or STS-3 STS-1 SPE SDH/SONET

signal. An E3 signal can be mapped only into an STM-1 TUG-3.

The TL3M interfaces to an STM-1 or STS-3 SDH/SONET signal

using a byte- wide parallel interface in the TranSwitch Telecom

Bus format. The TL3M supports Drop bus and Add bus SDH/

SONET timing modes. Drop bus timing provides the timing sig-

nals for the add side. Timing for both buses is independent for

the Add bus timing mode. Individual POH bytes are mapped into

a RAM interface for microprocessor access and to an external

interface for external processing if required. In the add direction

(except for the B3 byte) POH bytes may be inserted individually

from RAM locations, from the external interface, or from the local

side/alarm indication port. An option is provided to generate an

unequipped channel or AIS. An external interface is provided for

accessing the O-bits. An alarm indication port is provided for

ring operation. The TL3M also uses internal digital desynchro-

nizers that have a built-in pointer leak algorithm. The line side

can be configured for a NRZ or positive/negative rail interface.

For testing purposes, the TL3M provides boundary scan, PRBS

generators and analyzers, a BIP error mask, and DS3/E3 line

and facility loopbacks. The TL3M provides either Motorola or

Intel microprocessor access. The interrupt has programmable

mask bits. A software polling register is also provided.

• Add/drop multiplexers

• Digital cross connect systems

• Broadband switching systems

• Transmission equipment

Control

Signals

•

Shelton, Connecticut 06484

Boundary

Scan

•

www.transwitch.com

Interfaces

POH

PRELIMINARY TXC-03453B-MB, Ed. 3

Triple Level 3 Mapper

Transmit Interfaces (3)

Receive Interfaces (3)

LINE SIDE

Transmit Monitor

Interfaces (3)

(Rail, NRZ)

TL3M Device

•

DATA SHEET

Document Number:

TXC-03453B

USA

September 2003

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