OMS 3250

Product DescriptionOMS3250The OMS3250 subrack is housed in a specially designed rack that allows full, unrestrictedaccess to large fibre and cable management channels. The subrack mounting allows it to bemounted in most standard ETSI racks, however, due to the volume of optical connectionsMarconi strongly advises customers to use the specially designed rack especially if traffic isbeing presented to the switch at STM-1 or 4 rates.The subrack can be configured as the following network elements.• STM-64 DXC Provides up to thirty-two (32) port STM-64 DXC, configured usingsingle port single slot width STM-64 cards.• STM-16 DXC Provides up to one hundred and twenty-eight (128) port STM-16 DXC,configured using quad port STM-16 cards.• STM-4 DXC Provides up to two hundred and fifty-six (256) port STM-4 DXC,configured using octal port STM-4 cards. Up to 512 ports is supportedusing the Multirate card configured as 16xSTM-4.• STM-1 DXC Provides up to five hundred and twelve (512) port STM-1 DXC,configured using hexadecimal (16) port STM-1 optical or by using amixture of 10 cards hexadecimal (16) port electrical STM-1 (LTUrestricted) and 22 cards hexadecimal port optical STM-1.• SDH/OTN DXC Provides a mix of SDH (see previous configurations) and OTNinterfaces with the ability to switch both VC4/VC4-nc and ODUThe OMS3250 supports combinations of the above configurations and can be enhanced tointegrate a LO-VC ADM/DXC.The MSH64R/256R regenerator subrack (10 Gb/s signal regenerator) is available for use inconjunction with the OMS3250 product. It can be equipped as a single or dual regenerator anduses the STM-64 units, configured in regenerator mode.The regenerator subrack layout is shown below (Figure 5):Page 14 of 74 Copyright – Refer to Page 2 Issue 1