DESCRIPTION

The 78P2243  is a triple channel version of the 78P2241. Each of the three ports is a line interface transceiver for E3, DS3, STS-1, North America T3 and ATM applications. It includes clock recovery and transmitter pulse shaping functions for applications using 75-ohm coaxial cable at distances up to 1100 feet. These applications include  DSLAMs, T3/E3 digital multiplexers, SONET Add/Drop  multiplexers,  PDH equipment, DS3 to Fiber optic and microwave modems and ATM WAN access for routers and switches.

FEATURES

·  Triple channel transmit and receive interface for E3, DS3 and STS-1 applications

·  Interface to 75 ohm coaxial cable over 1100 feet at speeds up to 51.84  Mbit/s

·   Compliant with ANSI T1.102-1993, Telcordia GR-499-CORE and GR-253-CORE, ITU-T G.703, G.823 and G.824 for jitter tolerance and G.775 for loss of signal

·  Compliant with ATM FORUM af-phy-0034 (E3 public UNI) and af-phy-0054 (DS3 public UNI)

·  Easily Interfaced to ATM framer ICs such as PMC-Sierra 7345 , and 7346 QJET

·  Receive DS3-high and DSX3 monitor signals

·  Diagnostic loop-back for AMI and digital signals

·  Selectable B3ZS/HDB3 ENDEC

·  Receive Line Code Violation Detector

·  128-lead TQFP package

·  3.3V or 5V operation

·  Input circuit works transformer or AC coupled