XRT94L55 Datasheet | Exar

DESCRIPTION The XRT94L55 is a SONET/SDH OC-48/STM-16, 4x OC-12/STM-4, 16x OC-3/STM-1 Framer/Concentrator with integrated CDR's. - Provides Overhead Transparency between low andhigh speed interfaces - Supports performance monitoring and alarms required by GR.253 and ANSI T1.105 - Supports 50 msecond APS by monitoring and filtering K1,K2 bytes as required by the standards - Provides 48x48 STS-1 cross-connect between OC48 and OC-12/OC-3 interfaces - Supports Tandem Path Monitoring for Network Failure sectionalization as required by ANSI T1.105 HIGH SPEED INTERFACE APPLICATIONS - DWDM Multiplexer/Demultiplexers - Add Drop Multiplexers - Optical/Digital Cross-Connects - Router and Switch Line Cards FEATURES - Provides the highest level of integration and cost savings for Multiplexer/Concentrator applications with on chip CDR's - Provides multiplexing/concentration between OC48/ STM-16 interfaces and 4x OC-12/16x OC-3 interfaces - Provides 4 serial OC-12/STM-4 interfaces with integrated CDR, patible with industry standard optical modules - Provides 16 serial OC-3/STM-1 interfaces with integrated CDR, patible with industry standard optical modules - Provides 1+1 protected 4-bit parallel 2.488 Gbits/ sec OC-48/STM-16 interface, patible with industry standard CDR/transceivers - Supports the mappings for any standard bination of STS-48c/AU4-16c, STS-12c/AU-4c or STS3c/AU4 or STS-1/AU3 - Supports both SONET and SDH on all interfaces - SONET/SDH is programmable per interface - Provides pointer processing to acmodate timing offsets between optical interfaces - Terminates Section Overhead, Line Overhead on OC-48/STM-16, 4x OC-12, 16x OC-3 interfaces - Provides options to terminate and/or monitor STSPath Overhead - 1+1 Protected OC-48/STM-16, 4-bit parallel LVDS pliant with TFI-5 Protocol LOW SPEED INTERFACES - SONET/SDH pliant 4x OC-12 interfaces with integrated CDR meet all the relevant jitter specifications; OC-12 interfaces are PECL and patible with industry standard optical...