M120 Physical Interface Cards (PICs) Description
Physical Interface Cards (PICs) provide the physical connection to various network media types, receiving incoming packets from the network and transmitting outgoing packets to the network. During this process, each PIC performs framing and line-speed signaling for its media type. Before transmitting outgoing data packets, the PICs encapsulate the packets received from the FPCs. Each PIC is equipped with an ASIC that performs control functions specific to the media type of that PIC. The PIC slots are labeled PIC0, PIC1, PIC2, and PIC3, top to bottom and left to right.
PICs are hot-removable and hot-insertable. You can install up to four PICs into the slots in a Type 1 or Type 2 FPC or one PIC in a Type 3 FPC. PICs used in an FPC1 or FPC2 have captive screws at their upper and lower corners, and PICs used in an FPC3 have an upper ejector handle and a lower captive screw.





