The Juniper Dual-port T1 PIM provides the physical connection to T1 network media type, receiving incoming packets from the network and transmitting outgoing packets to the network. The Juniper Dual-port T1 PIM is equipped with a dedicated network processor that forwards incoming data packets to the Routing Engine, and receives outgoing data packets from the Routing Engine. During this process, the PIM performs T1 framing and line-speed signaling.