The PA-2JT2 port adapter is a two-port port adapter for the VIP2 card. It permits routers to communicate over a 6.3-Mbps leased-line service. The PA-2JT2 port adapter is a product that, when used in conjunction with the VIP2 cards, provides all of the hardware and software to allow connection of Cisco 7000 series chassis to digital leased-line circuits (point to point) at speeds up to 6.3 Mbps.The PA-2JT2 port adapter is fully transportable between compatible host chassis. The choice of each compatible chassis has no effect on capabilities, functionality, or performance of the PA-2JT2 port adapter. The VIP2 accommodates up to two PA-2JT2 port adapters providing a maximum of four serial port connections. Each port can provide connection to 6.3-Mbps leased lines. The PA-2JT2 port adapter provides all of the hardware for supporting leased-line communications.Each port on the PA-2JT2 port adapter has two BNC connectors: receive and transmit. Each port is configured at the factory to offer 75-ohm termination impedance for unbalanced operation. Further configuration is not necessary.