OMS 3250

OMS3250Product Descriptionconnect). This offers operators significant benefit in providing a family of products, which usethe same slide-in units, thus providing reduced inventory and whole life costs.1.1 SDH HierarchyOMS3250, when in HO-VC ADM/cross-connect configuration, provides the STM-1 to STM-64interfaces and supports the following SDH hierarchy, as shown in Figure 1, in accordance withITU-T G.707.STM-64x1AUG-64x1AU-4-64cVC-4-64cC-4-64cx4STM-16x1x1AUG-16x1AU-4-16cVC-4-16cC-4-16cx4STM-4x1AUG-4x1AU-4-4cVC-4-4cC-4-4cx4STM-1x1AUG-1x1AU-4VC-4Pointer processingMultiplexingAligningMappingFigure 1: HO SDH HierarchyWhen configured to equip the optional LO-VC switch, the supported hierarchy is the following(Figure 2).xNx1STM-N AUG AU-4 ...... VC-4 C-4139264 kbit/s(note 1)x3TUG-3x1TU-3......VC-3x7C-344736 kbit/s34368 kbit/s(note 1)TUG-2x1TU-2......VC-2(note 2)x3......LegendPOINTER PROCESSINGMULTIPLEXINGALIGNINGMAPPINGTU-12...... VC-12 C-12. ............VC-11 C-112048 kbit/s(note 1)1544 kbit/s(note 1)note 1: G.702 tributaries associated with containers C-x are shown. Other signals, e.g. ATM, can also be accomodated.note 2: Virtual concatenation of VC-2 could be used for the transport of new services at non hierarchical bit ratesIssue 1 Copyright – Refer to Page 2 Page 11 of 74