Juniper Dual-Port Synchronous Serial Physical Interface Module 8Mbit/s networking card

Dual-Port Synchronous Serial Physical Interface Module The Juniper Networks® Dual-port Synchronous Serial PIM provides the physical connection to serial network media types, receiving incoming packets from the network and transmitting outgoing packets to the network. The Dual-port Synchronous Serial 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 framing and line-speed signaling.
When the Dual-port Synchronous Serial PIM is installed in a ScreenOS-based
SSG Series security appliance, the dedicated network processor will forward traffic to the SSG Series CPU where traffic decisions are made based upon security policies.