M40e PIC Overview
This guide provides an overview and description of the Physical Interface Cards (PICs) supported by the Juniper Networks® M40e Multiservice Edge Router.
PICs provide the physical connection to various network media types. The PICs are mounted on Flexible PIC Concentrators (FPCs), which are inserted into a slot in a router. A PIC typically occupies a single slot on an FPC. PICs receive incoming packets from the network and transmit outgoing packets to the network. During this process, each PIC performs framing and high-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 a media-specific ASIC that performs control functions tailored to the PIC's media type. For complete information about installing PICs and transceivers, see the PIC and Transceiver Installation Instructions located at http://www.juniper.net/techpubs/.
Blank PICs resemble other PICs but do not provide any physical connection or activity. When a slot is not occupied by a PIC, you must insert a blank PIC to fill the empty slot and ensure proper cooling of the system.
The M40e router supports the Type 1 and Type 2 FPCs listed in FPCs Supported by the M40e Router. Inserting a combination of PICs with an aggregate higher than the maximum throughput per FPC is supported but constitutes oversubscription of the FPC. PIC/FPC Compatibility (M40e Router) provides a PIC/FPC compatibility matrix for the current PICs supported by the M40e router.
For a complete list of end-of-life FPCs and end-of-life Enhanced FPCs for M Series and T Series routers, see the M-series and T-series Routing Platform End-of-Life FPC Guide located at http://www.juniper.net/techpubs/.





