The Nortel NT9X77BA is an asynchronous and synchronous interface paddle board used with the Nortel Link Interface Unit Communications Signaling Terminal (LIU-COM ST) card NT9X76BA. It provides external RS-232 and V.35 interfaces for data communications.
The NT9X77BA is an enhanced version of the NT9X77AA V.35 paddle board, adding RS-232 synchronous and asynchronous interface capability. It can operate as either DTE or DCE, with configuration selected through onboard switches.
Key Features
- Manufacturer: Nortel Networks
- Part Number: NT9X77BA
- Product Type: Interface Paddle Board
- Function: LIU communications interface
- Interfaces: RS-232 and V.35
- Supports synchronous and asynchronous operation
- Supports DTE and DCE operation
- Designed for use with Nortel NT9X76BA LIU-COM Signaling Terminal
- Installed in the Link Interface Shelf (LIS)
- Used in Nortel DMS telecommunications systems
Technical Specifications
- RS-232 Interface: Synchronous / Asynchronous
- V.35 Interface: Synchronous
- Operating Modes: DTE / DCE
- Configuration: Switch-selectable
- Associated Card: NT9X76BA LIU-COM Signaling Terminal
- Installation: Link Interface Shelf (LIS), behind the NT9X76BA
- Board Type: Paddle Board
- Application: Data communications / signaling interface
- System Family: Nortel DMS / LIU communications equipment
90 Days
