Fpc Components; Figure 24: Typical Fpcs Supported On The Mx960 Router - Juniper MX960 Hardware Manual

MX960 3D Universal Edge Router Hardware Guide
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Figure 24: Typical FPCs Supported on the MX960 Router

MX-FPC2
If a slot is not occupied by a DPC, an FPC, or an SCB, a blank panel must be installed to
shield the empty slot and to allow cooling air to circulate properly through the router.
Each FPC supports up to two PICs. On an FPC2, one Packet Forwarding Engine receives
incoming packets from the PICs installed on the FPC and forwards them through the
switch planes to the appropriate destination port. On an FPC3, two Packet Forwarding
Engines receive incoming packets from the PICs installed on the FPC and forward them
through the switch planes to the appropriate destination port. The FPCs interface with
the power supplies and SCBs.
FPCs are hot-removable and hot-insertable, as described in
Redundancy" on page 12. When you install an FPC into a functioning router, the Routing
Engine downloads the FPC software, the FPC runs its diagnostics, and the PICs, housed
on the FPC, are enabled. Forwarding continues uninterrupted during this process. When
you remove or install an FPC, packet forwarding between other DPCs or FPCs is not
affected.

FPC Components

Each FPC consists of the following components:
FPC card carrier, which includes two PIC slots
Up to two Packet Forwarding Engines, each consisting of one I-chip for Layer 3
processing and one Layer 2 network processor
Midplane connectors and power circuitry
Processor subsystem (PMB), which includes a 1.2-GHz CPU, system controller, 1 GB of
SDRAM, and two Gigabit Ethernet interfaces
FPC3
"MX960 Component
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