TXC04216 Overview
The E1 Mapper 16-Channel device is designed for add/drop multiplexer, terminal multiplexer, and dual and single unidirectional ring applications. Four field-proven QE1M Quad E1 Mapper chips are interconnected in a single pact package to permit higher application board densities. Sixteen E1 2.048 Mbit/s signals are mapped to and from asynchronous Tributary Unit-12s (TU-12s) or Virtual Tributary 2s (VT2s).
TXC04216 Key Features
- Independent add and drop bus timing modes
- Selectable HDB3 positive/negative rail or NRZ E1 interface. Performance counter provided for illegal coding violations
- Digital desynchronizers
- J2 16-byte ETSI trail trace parison
- Drop buses are monitored for parity, loss of clock, upstream AIS and H4 multiframe errors
- TU Tandem Connection ETSI message processing and generation
- Performance counters are provided for TU/VT pointer movements, BIP-2 errors and Far End Block Errors (REIs)
- TU/VTs are monitored for Loss Of Pointer, New Data Flags (NDFs), AIS, Remote Defect Indication (RDI), and size errors (S
- V5 Byte Signal Label Mismatch and Unequipped detection
- E1 facility and line loopbacks, generation of BIP-2 and REI errors, and send RDI capability
TXC04216 Applications
- STM-1/STS-3/STS-1 to 2.048 Mbit/s add/drop mux/demux