TXC-04251 Datasheet (Transwitch) - QT1M Device Quad T1 Mapper

TXC-04251, QT1M Device Quad T1 Mapper

The Quad T1 Mapper device is designed for add/drop multiplexer, terminal multiplexer, and dual and single unidirectional ring applications.

Four T1 1.544 Mbit/s signals are mapped to and from asynchronous 1.5 Virtual Tributaries (VT1.5s) or Tributary Unit-11s (TU-11s).

The QT1M interfaces to a multi

TXC-04251 Features

* Add/drop four 1.544 Mbit/s signals from an STS-1, an STS-3/AU-3, or an STM-1 VC-4

* Independent add and drop bus timing modes

* Selectable AMI or B8ZS positive/negative rail or NRZ T1 interface. Performance counter provided for coding violations

* Digital desynchron