M320 Craft Interface SIB LEDs

Each SIB has two LEDs on the craft interface that indicate its status. The SIB LEDs, labeled SIB0 through SIB3, are located in the middle of the craft interface under the SIBS label. The ACTIVE LED on the SIB faceplate is not replicated on the craft interface. Table 1 describes the functions of the SIB LEDs.