
Data Sheet
May 2001
TDAT042G5 SONET/SDH
155/622/2488 Mbits/s Data Interface
Features
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Point-to-point path termination device for interface
termination.
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Versatile IC supports 155/622/2488 Mbits/s
SONET/SDH interface solutions for packet over
SONET (POS), asynchronous transfer mode
(ATM), or simplified data link (SDL) for data over
fiber applications.
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Supports point-to-point and multi-PHY UTOPIA.
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Low-power 3.3 V operation, CMOS technology.
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High-speed I/O is LVPECL. All other logic has 5 V
tolerant TTL-level inputs.
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–40 °C to +85 °C temperature range.
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600 LBGA package.
SONET/SDH Interface
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Termination of quad STS-3/STM-1, quad STS-12/
STM-4, or single STS-48/STM-16.
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Supports overhead processing for transport and
path overhead bytes.
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Optional insertion and extraction of overhead bytes
via serial overhead interface.
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Full path termination and SPE extraction/insertion.
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SONET/SDH compliant condition and alarm
reporting.
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Handles all concatenation levels of STS-3c
through STS-48c (in multiples of 3; i.e., 3c, 6c, 9c,
etc.), STM-1 through STM-16.
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Built-in diagnostic loopback modes.
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Compliant with the following
Telcordia
(Bellcore),
ANSI
*, and ITU standards:
— GR-253 CORE: SONET Transport Systems:
Common Generic Criteria.
*
ANSI
is a registered trademark of American National Standards
Institute, Inc.
Telcordia
is a registered trademark of Bell Communications
Research, Inc.
— ITU-T G.707: Network Node Interface for the
Synchronous Digital Hierarchy.
— ITU-T G.803: Architecture of Transport Net-
works Based on the Synchronous Digital Hier-
archy.
— T1.105: SONET-Basic Description including
Multiplex Structure, Rates, and Formats.
— T1.105.02 SONET-Payload Mappings.
— T1.105.03 SONET-Jitter at Network Interfaces.
— T1.105.06 SONET Physical Layer Specifica-
tions.
— T1.105.07 SONET-Sub-STS-1 Interface Rates
and Formats Specification.
— ITU-T I.432: B-ISDN User-Network Interface-
Physical Layer Specification.
— IETF RFC 2615 (June 1999): PPP over
SONET/SDH.
— IETF RFC 1661: The Point-to-Point Protocol
(PPP).
— IETF RFC 1662: PPP in HDLC-like Framing.
Data Processing
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Provisionable data engine supports payload inser-
tion/extraction and CRC-16/-32 generation/verifica-
tion for ATM cell or PPP SDL, or HDLC streams.
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Maintains counts for cell/packet traffic (e.g., total
number of cells, number of discarded cells).
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Integrated UTOPIA Level 2- and UTOPIA Level 3-
compatible ATM physical layer interface with
packet extensions for all test and operations.
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Insertion and extraction of up to four separate data
channels.
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Compliant with 1998: ATM Forum, ITU standards,
and IETF standards.
Microprocessor Interface
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16-bit address and 16-bit data interface with up to
66 MHz read and write access.
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Compatible with most industry-standard proces-
sors.
Please see the Description section, page 11, for
details.