The NORTEL NTKD25AA is a telecommunications equipment board/card manufactured by Nortel (Northern Telecom). It is typically listed as a “STAR CARD (Protection)” in parts inventories and resale listings. These kinds of cards are used in Nortel PBX and switching systems as part of the system’s internal interface or protection circuitry. This part number appears in large Nortel parts inventories alongside other control, interface, and line cards used in legacy Nortel telephone systems and central office equipment.
Key Features
- Manufacturer: Nortel (Northern Telecom)
- Part Number: NTKD25AA
- Product Type: Board / Card Module
- Category: Protection / Interface Card (Star Card)
- Application: Nortel PBX or Telecom Switching System
- Condition: Commonly found as used/refurbished on secondary markets like eBay
Technical Specifications
- Form Factor: Plug-in board for Nortel chassis
- Function: System interface / protection role within telecom equipment
- Compatibility: Nortel PBX and switching systems (e.g., Option 11, Meridian, or legacy platforms)
- Connector Type: Backplane edge connector (system-specific)
- Operating Environment: Telecom rack/slot environment
- Serviceability: Field-replaceable module
90 DAY'S
