GE 994-0089 User Manual

Page of 92
GE Energy 
 
72 
 
994-0089–1.00–2, General
 
 
5.4 
Front Panel LEDs 
Once the D400 is powered up, the LED indicators on the front panel of the D400 become 
active. The indicators provide status information on the operation of the D400. 
 
D400 Front LEDs 
 
System Status LEDs 
The System Status LEDs indicate the unit’s operational status: 
LED Display 
Status Description 
 
Power is correctly supplied to the unit (+5 V present on the D400 
Main Board). 
 
Initialization (boot-up and self-diagnostics) of the D400 is 
complete and the unit is ready to process data. 
 
 
IRIG-B signal is being correctly processed. 
 
 
Link integrity for the Ethernet Switch in NET1 and NET2 slots. 
 
 
Transmission activity for the Ethernet Switch in NET1 and NET2 
slots.