Vol. II-1-12 Harris Stratex NetworksChapter 1. System OverviewFigure 1-21. DAC 3xE3/DS3MDAC 2x155eDAC 2x155e supports two STM1 electrical tributaries on paired BNC connectors.Figure 1-22. DAC 2x155eDAC 1x155oDAC 1x155o supports one STM1/OC3 single-mode optical tributary on SC connectors.Figure 1-23. DAC 1x155oDAC 2x155oDAC 2x155o supports two STM1/OC3 single-mode optical tributaries on SCconnectors.Figure 1-24. DAC 2x155oDAC 155oMDAC 155oM multiplexes an SDH/OC3 single-mode optical tributary to an NxE1 orNxDS1 backplane.Figure 1-25. DAC 155oMDAC ESDAC ES interfaces four 10/100Base-T Ethernet ports to one or two radio and/or fibertransport channels. Features include:• Advanced QoS settings.• Transparent, VLAN and mixed modes of operation.• Throughputs to 100 Mbps per transport channel.• Assignment to radio or fiber links.• Assignment of total link capacity to Ethernet, or split between Ethernet and E1/DS1traffic.• Inter-frame gap (IFG) and preamble stripping and re-insertion.• Compatibility with DAC GE, IDU ES and IDU GE 20x.