Features:
- Used to establish communications link between cabinets
- Fiber optic cable with 2 fiber cores is used to pass voice, user data, CPU control and clock information between the cabinets
System Requirements/Compatibility:
- Required when three 228-port cabinets are connected together to form 648-port configuration
- One card required in each cabinet
- Works with Isoetec Digital System/Executone Integrated Digital System (IDS™) 648