•
Processor subsystem, which includes a 667-MHz CPU, system controller, 128 MB of
SDRAM, and two Fast Ethernet links to the Control Board.
•
Crosspoint switches for redundancy.
•
A metal bracket that enhances airflow and serves as a guide for removing and installing
the CFPC.
•
An LED located on the CFPC faceplate that displays the status of the CFPC.
The 10-Gigabit Ethernet CFPC also contains the following components:
•
S2H FPGA—Bridge between HSL2 and one SPI-4.2 interface.
•
10GE MAC interface circuitry.
•
XFP optical transceiver (LAN/WAN PHY).
The OC192 CFPC also contains the following components:
•
H2H FPGA—Bridge between HSLA and HSL1 interface.
•
Juniper Networks D4P framer.
•
XFP optical transceiver.
Related
Documentation
M120 FPCs and CFPCs Supported on page 14
•
•
Maintaining M120 FPCs and CFPCs on page 106
•
Troubleshooting M120 FPCs and CFPCs on page 121
•
Replacing an M120 CFPC on page 157
M120 FPCs and CFPCs Supported
M120 routers support the FPCs listed in Table 3 on page 14.
You can install any combination of these FPCs in the M120 router.
Table 3: FPCs Supported by the M120 Router
First Junos OS
Release Support
Maximum Throughput
per FPC
Maximum Number
of PICs Supported
per FPC
FPC Model Number
FPC
Name
FPC Type
8.0R2
4 Gbps
4
M120-FPC1
FPC1
1
8.0R2
10 Gbps
4
M120-FPC2
FPC2
2
8.0R2
10 Gbps
1
M120-FPC3
FPC3
3
A CFPC is a combination of a PIC and an FPC. It contains the interface circuitry and the
FPC as a single assembly. The CFPCs provide receptacles for XFP optical transceivers.
Copyright © 2010, Juniper Networks, Inc.
14
M120 Multiservice Edge Router Hardware Guide
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