Fpc Components; Fpc Terminology; Figure 6: Fpc1, Fpc2, And Fpc3 For The M120 Router - Juniper Networks Hardware Manual

Figure 6: FPC1, FPC2, and FPC3 for the M120 Router

FPC Components

FPC Terminology

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Faceplates on FPCs for the M120 router are labeled with the FPC type (
FPC3 ). The faceplates on the CFPCs are labeled with their CFPC type,
XFP or OC192 .
Figure 6 on page 11 shows the three types of FPCs that the M120 router supports.
Each FPC consists of the following components:
FPC card carrier, which includes the PIC slots.
HSL2 conversion FPGA, a bridge between the HSL2 interface and the interface required
by the types of supported PICs (either BD8, BD32 or HSL1).
HSL2 crossbar connection to the FEBs.
PIC CPU complex.
Physical PIC connectors.
Midplane connectors and power circuitry.
Processor subsystem, which includes a 667-MHz CPU, system controller, 128 MB of
SDRAM, and two Fast Ethernet links to the Control Board.
An LED, located on the craft interface above the FPC, that displays the status of the
FPC.
FPC online/offline button, located on the craft interface above the FPC.
Regardless of whether you are holding an FPC vertically or horizontally, the documentation
uses the same terms for all four edges of the FPC
Faceplate—Edge of the FPC that has slots into which you insert the PICs
Connector edge—Edge opposite the faceplate; this edge has the connectors that attach
to the midplane
Chapter 2: M120 Hardware Components
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FPC1 FPC2
Ethernet 10GBASE
, or
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