the line cards and the fan trays inside of the chassis (see Figure 6 on page 27). Each MX10008 SFB has
eight connectors that match to a line card slot, eliminating the need for a backplane. When all the six SFBs
are installed, the MX10008 router has a net switching capacity of 2.4 terabytes per second (bidirectional).
See “MX10008 Switch Fabric Board Description” on page 84.
Figure 6: MX10008 SFB
Cooling System
The cooling system in an MX10008 router consists of two hot-removable and hot-insertable FRU fan trays
(see Figure 7 on page 28) and two fan tray controllers (see Figure 8 on page 28).
Two fan tray models and their associated fan tray controllers are available. Both models of fan tray contain
11 fans. The fan trays install vertically on the rear of the chassis and provide front to back chassis cooling.
For model differences, see “MX10008 Cooling System and Airflow” on page 45.
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