Faceplates on FPCs for the M120 router are labeled with the FPC type (
FPC1
,
FPC2
, or
FPC3
). The faceplates on the CFPCs are labeled with their CFPC type,
Ethernet 10GBASE
XFP
or
OC192
.
Figure 6 on page 11 shows the three types of FPCs that the M120 router supports.
Figure 6: FPC1, FPC2, and FPC3 for the M120 Router
FPC Components
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.
FPC Terminology
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
11
Copyright © 2010, Juniper Networks, Inc.
Chapter 2: M120 Hardware Components
All manuals and user guides at all-guides.com
