78P2352

DESCRIPTION The 78P2352 is Teridian’s second generation Line Interface Unit (LIU) for 155 Mbps SDH/SONET (OC-3, STS-3, or STM-1) and 140 Mbps PDH (E4) telecom interfaces. The device is a dual channel, single chip solution that includes an integrated CDR in the transmit path for flexible NRZ to CMI conversion. The device can interface to 75Ω coaxial cable using CMI coding or directly to a fiber optics transceiver module using NRZ coding. The 78P2352 is compliant with all respective ANSI, ITUT, and Telcordia standards for jitter tolerance, generation, and transfer. APPLICATIONS Central Office Interconnects DSLAMs Add Drop Multiplexers (ADMs) Multi Service Switches Digital Microwave Radios 78P2352 Dual Channel OC-3/ STM1-E/ E4 LIU DATA SHEET SEPTEMBER 2006 FEATURES ITU-T G.703 compliant cable driver for 139.264 Mbps or 155.52 Mbps CMI-coded coax transmission Integrated adaptive CMI equalizer and CDR in receive path handles over 12.7dB of cable loss Serial, LVPECL system interface with integrated CRU in transmit path for flexible NRZ to CMI conversion. 4-bit parallel CMOS system interface with master and slave Tx clock modes. Selectable LVPECL compatible NRZ media interface for 155.52 Mbps optical transmission. Configurable via HW control pins or 4-wire serial port interface Compliant with ANSI T1.105.03-1994; ITU-T G.751, G.813, G.823, G.825, G.958; and Telcordia GR-253-CORE for jitter performance. Receiver Loss of Signal (LOS) detection compatible wit...