SAS-216EL Backplane User's Guide 2-4 General Jumper Settings Jumper Jumper Settings Note PRI MODE1 _ 1-2 Factory Setting Do not change BUZZER ENB1 _ Open: Disable Closed: Enable Buzzer Enable Socket Settings Socket Socket Setting Note REMOTE FAN FAIL _ _ _ SOCKET1 Connected Front Panel Fan Fail indicator (Optional) Front Panel LEDs LED STATE SPECIFICATION 12V LED1 _ OFF Backplane power failure. Light is on during normal operation. 5V LED1 _ OFF Backplane power failure. Light is on during normal operation.