Juniper JX-1E3-S Internal interface cards/adapter

J-SERIES Single Port E3 Expansion module The Juniper Networks® DS3 and E3 PIMs provide the physical connection to DS3 or E3 network media types, receiving incoming packets from the network and transmitting outgoing packets to the network. Both DS3 and E3 PIMs are 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 installed in the Juniper Networks SSG500 line of services gateways running ScreenOS®, the dedicated network processor forwards traffic to the SSG520M or SSG550M CPU where traffic decisions are made based upon the security policy.