Up to four regular PICs install into an M5 router and up to eight regular PICs install into an M10 router, as shown in Figure 1 and Figure 2. Quad-wide PICs occupy all four slots in an FPC row.
Both regular and quad-wide PICs are hot-removable and hot-insertable. A removed PIC no longer receives or transmits data, and removing or inserting a PIC briefly interrupts forwarding of traffic through the remaining PICs.
To replace a PIC, perform the following procedures: