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TXC04251 Datasheet QT1M Device Quad T1 Mapper

Manufacturer: Transwitch

Download the TXC04251 datasheet PDF. This datasheet also includes the TXC-04251 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (TXC-04251_Transwitch.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number TXC04251
Manufacturer Transwitch
File Size 874.02 KB
Description QT1M Device Quad T1 Mapper
Datasheet download datasheet TXC04251 Datasheet

General Description

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 multiple-segment, byte-parallel SONET/SDH-formatted bus at the 19.44 Mbit/s byte rate for STS-3/STM-1 operation or at the 6.48 Mbit/s byte rate for STS-1 operation.

Overview

QT1M Device Quad T1 Mapper TXC-04251 DATA SHEET.

Key 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 desynchronizer reduces systemic jitter in the presence of multiple pointer movements. A register is also provided to control the internal FIFO leak rate.
  • Drop buses are monitored for parity, loss of cl.

More Datasheets from Transwitch

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