MX240 Ethernet Services Router Hardware Guide
Figure 8: SCB
SCB Slots
You can install one or two SCBs. The SCBs install horizontally into the front of the chassis in the slots labeled 0 and 1/0 (the multifunction slot1/0 can contain either SCB1 or DPC0). If any slots are empty, you must install a blank panel.
SCB Redundancy
If two SCBs are installed, one SCB functions as the master SCB and the other as its backup. If the master fails or is removed, the backup becomes the master.
12■ Host Subsystem
