TXC04228 Datasheet

TXC04228 E1Mx28 Device DS1 Mapper 28-Channel

The T1Mx28 is a 28-channel byte-synchronous and asynchronous DS1 mapper. Four field-proven DS1MX7 DS1 Mapper chips are interconnected in a single compact package to permit higher application board densities. Both SONET and SDH mappings are provided per Bellcore GR253-CORE (VT1.5) and ITU G.707 3-96.

Features

• Twenty-eight independent 1.544 Mbit/s DS1 mappers
• Single/dual byte-parallel Telecom Bus @ 6.48 MHz (28 slots) or 19.44 MHz (84 slots)
• Floating VT1.5 byte-synchronous mapping with signaling only for use with or without a slip buffer
• Asynchronous mapping for DS1
• SONET mapping (VT1.5) or SDH mapping (VC-4/AU-3/TU-11)
• AMI or B8ZS codec for DS1s, or NRZ
• Serial I/O for control of DS1 line interface transceivers or framers
• Telecom Bus and DS1 loopbacks with integral PRBS generator and analyzer
• VT1.5/TU-11 pointer tracking and generation
• VT1.5/TU-11 overhead processing and insertio.