OpenScape 4000 LTUCR — LTU Control Replacement Board
Control interface between OpenScape 4000's central and peripheral parts — successor to the legacy LTUCA board with a new HW ID and part number. Two High-Speed Connect (HSC) interfaces.
Specifications
- Tip / Type
- Line Trunk Unit Control Replacement (central card)
- Yerini aldığı / Replaces
- LTUCA (legacy)
- Uyumluluk / Compatibility
- HiPath 4000 V8 + OpenScape 4000 V11
- Geriye uyumlu / Backward compatible
- Hayır
- HSC arayüzü / HSC interfaces
- 2 × High-Speed Connect
- Backplane güç / Backplane power
- 5 V DC
- Yerleşim / Placement
- AP3700 shelf — central position
- Loadware güncelleme / Loadware update
- Hat üzerinden (FPGA + firmware imajı)
Key features
- LTUCA replacement — recognized as an entirely new board with a fresh HW ID and part number.
- Compatible only with HiPath 4000 V8 + OpenScape 4000 — not backward compatible with older processor boards.
- Does NOT replace LTUCA / LTUCX — those are separate system roles.
- Peripheral interface for the peripheral shelves: receives signals from peripheral boards and forwards to the central side.
- Two High-Speed Connect (HSC) interfaces — fast data plane.
- 5 V DC backplane power — low consumption.
- Loadware: contains both the FPGA loadware and board firmware, updatable over the line.
- Positioned centrally on the AP3700 shelf — cabled to peripheral shelves.
Typical applications
OS 4000 V11 greenfield install — essential central control card.
Legacy LTUCA → LTUCR upgrade — prerequisite for V11 migration.
Multi-shelf large enterprise — central synchronization across peripheries.
High-traffic enterprise PBX — HSC interfaces eliminate signaling bottlenecks.
Service / maintenance — loadware update over the line in the field.
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DetailsControl interface between OpenScape 4000's central and peripheral parts — successor to the legacy LTUCA board with a new HW ID and part number. Two High-Speed Connect (HSC) interfaces.