OMS 3250

Product DescriptionOMS3250Figure 2: SDH HierarchyThe optical interface parameters are compatible with the relevant specifications of ITU G.691and G.957 or better. It is possible to increase the span of optical interfaces by using opticalamplifiers.The product also supports ‘coloured’ optical interfaces to facilitate interworking with MarconiDWDM equipment.1.2 OTN HierarchyAdditionally the OMS3250 equipment will also satisfy the ITU-T G.798 and G.709 requirements(as shown in Figure 3).OTM0.2x 1OTU2x 1ODU2x 1OPU2x 4OTM0.1x 1OTU1x 1ODU1x 1OPU1STM-64/CBR10GATM, IP, Ethernet, ...STM-16/CBR2G5ATM, IP, Ethernet, ...MappingOverheadOPU Optical Channel Payload UnitODU Optical Channel Data UnitOTU Optical Channel Transport UnitOTMOptical Transport ModuleFigure 3: OTN (Optical Transport Network) Structure According To ITU-T G.709Page 12 of 74 Copyright – Refer to Page 2 Issue 1