Figure 16: Fpc And Cfpcs Installed In An M120 Router Chassis - Juniper M120 Hardware Manual

M120 Multiservice Edge Router Hardware Guide
52
which a PIC can be installed. An FPC can be installed into any FPC slot on the router,
regardless of which PICs it contains.
If a slot is not occupied by an FPC, an FPC blank panel must be installed to shield the
empty slot and to allow cooling air to circulate properly through the router.
FPCs are hot-removable and hot-insertable, as described in
Units (FRUs)" on page 179. 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 on other FPC slots continues uninterrupted during
this process.

Figure 16: FPC and CFPCs Installed in an M120 Router Chassis

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,
or .
XFP OC192
Figure 17 on page 53 shows the three types of FPCs that the M120 router supports.
"M120 Field-Replaceable
,
FPC1 FPC2
Ethernet 10GBASE
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