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TXC-04228

Transwitch
Part Number TXC-04228
Manufacturer Transwitch
Description E1Mx28 Device DS1 Mapper 28-Channel
Published Dec 1, 2005
Detailed Description T1Mx28 Device DS1 Mapper 28-Channel TXC-04228 DATA SHEET FEATURES • Twenty-eight independent 1.544 Mbit/s DS1 mappers • ...
Datasheet PDF File TXC-04228 PDF File

TXC-04228
TXC-04228

Overview
T1Mx28 Device DS1 Mapper 28-Channel TXC-04228 DATA SHEET 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 insertion • One-second latched performance registers and counters • DS1 alarm detection and generation • Internal ring port for use as a dual bus 14-channel mapper • Gapped line clock option for Internet applications without need for a framer • Intel/Motorola-compatible microprocessor interface • 3-bit RDI support • Boundary scan capability (IEEE 1149.
1) • Single +3.
3 V, ±5 % power supply • 456-lead plastic ball grid array package (35 x 35 mm) DESCRIPTION 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.
A single-dual add/ drop Telecom Bus is provided that can operate at either 6.
48 or 19.
44 MHz, which is compatible with other TranSwitch devices.
VT1.
5/TU-11 pointer tracking and overhead extraction/processing with full error and alarm control is provided.
VT1.
5/TU-11 pointer calculation and overhead assembly is also provided.
Alarm and error mappings from drop to add and SONET/SDH to/from DS1 are provided.
Jitter performance is achieved with a fully digital threshold modulator and DPLL that meets GR-253-CORE MTIE requirements without external de-jitter buffers.
For the DS1...


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