简介： Complete T1/DS1/ISDN-PRI/J1 Transceiver Functionality Complete E1 (CEPT) PCM-30/ISDN-PRI Transceiver Functionality Long-Haul and Short-Haul Line Interface for Clock/Data Recovery and Waveshaping CMI Coder/Decoder for Optical I/F Crystal-Less Jitter Attenuator Fully Independent Transmit and Receive Functionality Dual HDLC Controllers Programmable BERT Generator and Detector Internal Software-Selectable Receive and Transmit-Side Termination Resistors for 75Ω/100Ω/120Ω T1 and E1 Interfaces Dual Two-Frame Elastic-Store Slip Buffers that Connect to Asynchronous Backplanes Up to 16.384MHz 16.384MHz, 8.192MHz, 4.096MHz, or 2.048MHz Clock Output Synthesized to Recovered Network Clock