TXC04236

EtherMap-3 Plus Device OC-3 Ethernet over SONET Mapper with Rapid Restoration TXC-04236 DATA SHEET FEATURES Eight 10/100 Mbit/s Ethernet ports, each using a SMII interface Single 1000 Mbit/s Ethernet port, using a parallel GMII interface (lead shared with SMII interfaces) Ethernet Management interface for control and configuration of externally connected PHYs Provides IEEE 802.3 Half Duplex mode on 10/100 Mbit/s and Full Duplex mode on 10/100/1000 Mbit/s Ethernet ports Provides IEEE 802.3 Management Statistics (RMON) Ethernet frame encapsulation/decapsulation protocols: ITU-T G.7041, Generic Framing Procedure (GFP) ITU-T X.86/X.85, Link Access Procedure SDH (LAPS) ITU-T Q.922, Link Access Procedure Frame Mode (LAPF) RFC1662/3518, PPP Bridging Control Protocol (BCP) Performs mapping/demapping of encapsulated Ethernet frames into/from low order (VT1.5 SPE/VT2 SPE/VC-11/VC12) and high order (STS-1 SPE/VC-3) virtually concatenated payloads Performs mapping/demapping of encapsulated Ethernet frames into/from a single contiguous concatenated (STS-3cSPE/VC-4) payload or a single Low/High order (VT1.5/VT2/VC-11/VC-12/STS-1/VC-3) payload Dynamic bandwidth allocation using on-chip LCAS processing (ITU-T G.7042) for low and high order virtual concatenated payloads Glueless memory interface to external 64/128/256 Mbit SDRAMs Low Order POH and Pointer processing for 84/63 VT1.5/VT2/TU-11/TU-12 and 3 TU-3 High Order POH processing for STS-1 SPE/VC-3/STS-3c ...