Lucent Technologies Galaxy Power System 4812
3 - 6  Galaxy Controllers   Issue 5  June 2000
Galaxy Vector Controller, continued
LEDs LEDs show the source and severity of various alarms. An alarm lights 
one status LED and one or more alarm LEDs. If more than one alarm 
LED lights, the status LED that lights will indicate the most severe 
active alarm.
• The ALARMS row of six LEDs indicates the source of the alarm:
– BD - battery on discharge
– BATT - battery
– DIST - distribution
– RECT - rectifier
– CTRL - controller
– AC - ac input power
• The STATUS row of three LEDs indicates the severity of the 
reported alarm:
– MAJ - major
– MIN - minor
– NORM - normal
• THERMAL COMPENSATION: Lights when the system voltage 
has been adjusted by the Thermal Compensation feature.
Test Jacks A pair of test jacks allows direct measurement of the dc bus sense 
voltage being monitored by the controller.