Tellabs 81.5507B is a telecom interface/logic daughter board used in legacy Tellabs transport, digital cross‑connect, and network switching systems. These systems — commonly found in carrier, metro, and enterprise environments — rely on such modules to handle internal signal routing, logic coordination, and interface support between larger card assemblies and the chassis backplane. Sold primarily through refurbished and spare parts inventories, the 81.5507B board is used for maintenance, replacement, and repair of legacy telecom network equipment.
Key Features
- Manufacturer: Tellabs
- Part Number: 81.5507B
- Product Type: Interface/Logic Daughter Board
- Application: Legacy Tellabs transport and digital cross‑connect systems
- Function: Internal logic and interface support between cards and backplane
- Compatibility: Tellabs legacy line card architectures
- Design: Telecom‑grade daughter board module
Technical Specifications
- Module Type: Logic / interface daughter board
- Function: Provides internal signal coordination and interface support
- Integration: Installed onto main boards or chassis backplane circuitry
- Deployment: Used in network backhaul, SONET/SDH, and cross‑connect infrastructures
- Field‑Replaceable Unit: Yes (plug‑in daughter module)
- Use Case: Signal interface and internal logic support for legacy systems
- Operation: Works with primary control and port cards to enable signal routing
90 DAY'S
