Siemens S30777-Q751-Z telecommunications hardware (Hicom/HiPath/OpenScape PBX, SDH transmission) PBX Card / Module

The Siemens S30777-Q751-Z is a CUPR (Connection Unit Point Rack) backplane for the HiPath 3300 rack-mount chassis, the rack-mount counterpart to the wall-mount CUP backplane (S30777-Q751-X) used in the HiPath 3350, and equally applicable to the OpenScape Business X3R product line the HiPath 3300 was carried forward into. CUPR is the connection hub the system’s other cards plug into inside the rack-mount chassis, distinct from the CUCR backplane used in the equivalent HiPath 3500/OpenScape X5R rack chassis. As a backplane rather than a peripheral card, a fault here takes the whole rack-mount cabinet out of service, since every other board depends on it for power and signal distribution, making correct sourcing more consequential than a routine line-card swap. Genuine Siemens backplanes of this kind remain a routine requirement for operators maintaining rack-mount HiPath 3300/OpenScape X3R chassis. Confirm the exact chassis type (rack, not wall-mount) before ordering. Tech-Star is UK-based and ships worldwide; contact our sales team for current stock and pricing.