... Transmission System,MSTP,MSAP1.OverviewF10-155S is a STM-1 optical transmission system, whose technical ... 155S provides two 155.52Mb/s aggregate line interfaces of A and B, possessing the network elements ... 32×E1 tributaries; As a terminal, it can multiplex 32×E1 to a line port;Network element management ... Provides Engineer Order Wire (EOW) interface (two-line model), with group call and dial functions; ...