Using the E6960-66600 Frequency Divider Board D
Keysight E6961A User Guide and Method of Implementation 75
LED Description
Power LED
LED A
LED B
Table D-3 LED Indicators
Green Red
Input voltage below 4.5V ON Flash 1 Hz
Input voltage below3.6V ON Flash 2 Hz
Input voltage above 5.5V ON ON
Table D-4 LED A Indicators
Green Red
Input signal locked (Normal condition) ON OFF
Lost of Lock Flash 1 Hz OFF
Lost of Signal OFF Flash 1 Hz
Lost of 48MHz reference OFF ON
Table D-5 LED B Indicators
Green Red
Valid switch B configuration (Normal condition) ON OFF
Invalid switch B configuration Flash 1 Hz OFF
Missing input signal/ input signal out of range/ Warning. See LED A for list of
warning
N/A ON