FEATURES

SONET/SDH INTERFACE

• Interface rate software selectable between OC-3/STM-1 (155.52 Mbit/s) and OC-12/STM-4 (622.08 Mbit/s) rates

• Integrated clock recovery & synthesis allows direct interface to low-cost optical transceivers

• Integrated clock synthesis generates line clock from 77.76 MHz reference

• Complies with Bellcore, ANSI, and ITU specifications for Jitter Tolerance and Jitter Generation

• High order path processing and alignment to STS-1/AU-3/TU-3 level

• Full access to all SONET/SDH Transport overhead bytes via a dedicated serial port

• Full access to all SONET/SDH STS-1/AU-3/TU-3 path overhead bytes via a dedicated serial port

• Full access to all DCC bytes via a dedicated serial interface

• Ring Control port provides real time detection of error conditions and insertion of alarms such as AIS & RDI

• Section and Path Trace filter and monitor checks for Trace Identifier Mismatch (TIM) and Trace Identifier Unstable (TIU) conditions

DS3/E3/EC-1 INTERFACE

• Flexible three-port DS3/E3/EC-1 Interface

• Supports clear channel mapping/demapping of DS3 or E3 into/from STS-1, AU-3, or TU-3

• Fully digital desynchronizers require no external PLLs for standards compliant operation

• Integrated desynchronization CSU allows low rate reference clock at 44.736 MHz, 34.368 MHz, or 51.84 MHz

• Bi-directional digital jitter attenuation for DS3 and E3 streams allows interfacing to low cost LIUs

• Full bi-directional performance monitoring for DS3, E3, and EC-1 streams

• Full access to DS3/E3/EC-1 Overhead bytes

GENERAL FEATURES

• Provides an industry standard 8-bit, 77.76 MHz telecombus interface

• Multi-drop capability allows multiple devices to share the add/drop bus for redundancy or multiplexing purposes

• Full Time Slot Interchange (TSI) allows flexible mixing of traffic from the SONET/SDH and DS3/E3/EC-1 Interfaces

• Supports diagnostic 223-1 pseudo random bit-sequence (PRBS) generation and monitoring

• Provides a standard JTAG test-port for boundary scan board-test purposes

• Provides a generic 16-bit microprocessor interface for control and monitoring

• 15x15mm 196 ball CABGA package allows for flexible placement and routing

APPLICATIONS

• SONET/SDH Add/Drop Multiplexers

• Terminal Multiplexers

• Customer Premise Equipment

• Media Gateways

• Multiservice Provisioning Platforms

• Channelized Router Interfaces

• Digital Cross-Connects