The Nortel NT9X77AA is a V.35 interface paddle board used in Nortel DMS-100 Signal Transfer Point (STP) and Link Interface Unit (LIU) equipment. It provides the electrical interface between the LIU/Signaling Terminal (ST) and a CCS7 signaling link. Nortel documentation specifically identifies NT9X77AA as the V.35 version of the link paddle board.
The board provides standard Layer-1 interface functions, including level-shifting drivers/receivers and control of modem/status lines. It is associated with the NT9X76AA/NT9X76BA Signaling Terminal.
Key Features
- Manufacturer: Nortel Networks
- Part Number: NT9X77AA
- Product Type: V.35 Interface Paddle Board
- System: Nortel DMS-100 / STP
- Application: CCS7 signaling link interface
- Interface: V.35
- Provides electrical interface between LIU and signaling link
- Supports Layer-1 signal conditioning
- Designed for use with Nortel STP/LIU equipment
- Related HECI/CLEI: ENIF3001AA
Technical Specifications
- Interface Standard: V.35
- Interface Function: Electrical link interface
- Data Signals: TxD, RxD, TxClk, RxClk
- Control/Status: Modem control and status lines
- Operating Clock Rates: 2.4, 4.8, 9.6, 19.2, 56 or 64 kbit/s
- Default Clock Rate: 56 kbit/s
- Clock Configuration: DTE or DCE
- Associated Signaling Terminal: NT9X76AA / NT9X76BA
- Installation: Nortel Link Interface Unit / Link Interface Shelf
- Application: CCS7/SS7 signaling transport
90 Days
