Lucent Technologies Galaxy Power System 4848/100
Issue 5  June 2000  Troubleshooting SCF Systems  13 - 13
DIST Alarm LED
Table 13-D: Distribution Alarms
(See Figures 12-9 and 12-10)
Controller 
LED
Controller 
Alarm 
Status
SCF Controller 
Display
Other 
Indication(s)
Possible 
Problem(s)
Possible Solution(s)
DIST MAJ External Fuse 
Major
Alarm LED on 
dc distribution 
panel is lit.
DC load fuse or 
circuit breaker has 
operated.
Replace fuse or reset circuit 
breaker.
DIST*
*Alarm 
must be 
configured 
to turn on 
the DIST 
LED; not a 
factory 
default.
MAJ Contactor 2 
(or 3) Open
Red LED on 
contactor drive 
board is lit.
Contactor is open:
•Open has been 
initiated by 
controller.
•Open has been 
initiated 
manually.
1. Follow instructions on the 
label adjacent to the 
contactor drive board (see 
Figure 12-10).
2. If the problem is not 
corrected, call your local 
RTAC representative.
DIST*
*Alarm 
must be 
configured 
to turn on 
the DIST 
LED; not a 
factory 
default.
MAJ Contactor 2 
(or 3) Fail
-- Contactor or drive 
board has failed.
Call your local RTAC 
representative.