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Router Hardware Components
The Junos OS runs on four types of Juniper Networks routers: J Series, M Series, MX Series, and T Series. The routers consist of the major hardware components as shown in Table 3. One or more of the major hardware components shown is used in each system.
Table 3: Major Router Hardware Components
| M Series | MX Series | T Series | J Series | |
|---|---|---|---|---|
| Routing Engines (RE) | X | X | X | X |
| Control Board | X | X | ||
| Switch Interface Board (SIB) | X | X | ||
| Forwarding Engine Board (FEB) | X | |||
| Power Supply | X | X | X | X |
| Cooling System | X | X | X | X |
| Dense Port Concentrators (DPC) | X | |||
| Switch Control Board (SCB) | X | |||
| Flexible PIC Concentrators (FPC) | X | X | ||
| Physical Interface Module (PIM) | X | |||
| Physical Interface Card (PIC) | X | X |
Flexible PIC Concentrators (FPCs) are each populated by PICs for various interface types. On some routers, the PICs are installed directly in the chassis.
For information about specific components in your router, see the hardware guide for your router.
