For each PEM, the following power terminals supply power to certain components within the server. Terminal 1 supplies power to fan tray 1 and slots 1, 3 and 5. Terminal 2 supplies power to fan tray 2, the primary shelf management card, and slots 2, 4, 6, and 7. Terminal 3 supplies power to the backup shelf management card and slots 8, 9, 11, and 13. Terminal 4 supplies power to fan tray 3 and slots 10, 12, and 14.