XRT86SH328
DESCRIPTION
GENERAL DESCRIPTION
The XRT86SH328 is an integrated VT/TU Mapper with 28 port T1/E1 Line Interface Units. The XRT86SH328 contains integrated DS1/E1/J1 Framers for performance monitoring. The XRT86SH328 processes the Section, Line and Path overhead in the SONET/SDH data-stream. The processing of path overhead bytes within the STS-1s or TUG-3s include 64 bytes (of buffer) for storing the (Section Trace and Path Trace) messages. Path Overhead bytes can be accessed either by on-chip registers or a Serial Output Port. Each of the 28 T1 or E1 Channels use an internal De Synchronizer circuit with an internal pointer leak algorithm. This removes the jitter due to mapping and pointer adjustments from the T1 or E1 signals that are de-mapped from the ining SONET/SDH datastream. These De-Synchronizer circuits do not need any external clock references for its operation. The Transmit Blocks permit flexible insertion of TOH and POH bytes via both Hardware and Software control. The...
