Tellabs 81.5387 is a digital cross‑connect expansion/interface module used in legacy Tellabs transport and switching systems. These systems — including families like the TITAN 532L/5320L series — were deployed in carrier, metro, and enterprise networks for high‑capacity voice and data transport. The 81.5387 board performs signal interface and expansion functions, enabling additional port or interface connectivity within the chassis backplane. It is typically supplied as a spare or refurbished part for system maintenance, repair, or upgrade of legacy network equipment.
Key Features
- Manufacturer: Tellabs
- Part Number: 81.5387
- Product Type: Digital Cross‑Connect Interface/Expansion Board
- Application: Legacy Tellabs transport and SONET/SDH switching systems
- Function: Provides additional interface/expansion connectivity within chassis
- Compatibility: Tellabs TITAN 532L/5320L and other legacy transport platforms
- Design: Telecom‑grade controller/expansion board
Technical Specifications
- Module Type: Interface expansion board
- Function: Facilitates additional port/interface integration on chassis backplane
- Integration: Plugs into transport system backplane or card cage
- Deployment: Carrier, metro, and enterprise telecom networks
- Field‑Replaceable Unit: Yes (standard maintenance replacement)
- Use Case: Line expansion, port interface support in digital cross‑connect systems
- Operation: Works with other control/interface modules for signal coordination
90 DAY'S
