PEF2256
Overview
Common master clock reference for E1 and T1/J1 (any frequency within 1.02 and 20 MHz) Power-down function Support of automatic protection switching Dual-rail or single-rail digital inputs and outputs Unipolar NRZ or CMI for interfacing fiber-optical transmission routes Selectable line codes (E1: HDB3, AMI/T1: B8ZS, AMI with ZCS) Loss-of-signal indication with programmable thresholds according to ITU-T G.775, ETS300233 (E1) and ANSI T1.403 (T1/J1) Optional data stream muting upon LOS detection Programmable receive slicer threshold.
- High-density, generic interface for all