IBM Marine Radio DS4700 User Manual
AC power supply and fan unit LEDs
This section describes the primary power supply and fan unit LEDs on the DS4700
Express Storage Subsystem (models 70A, 70H, 72A, and 72H).
Express Storage Subsystem (models 70A, 70H, 72A, and 72H).
Table 40. Power supply and fan unit LEDs
Number
LED
Normal Status
Problem Status
1
Power supply and fan unit
Power
Power
On
Off
2
Service Action Allowed
(OK to Remove)
(OK to Remove)
Off
On
3
Service Action Required
(Fault)
(Fault)
Off
On
4
Direct Current Enabled
On
Off
DC power supply and fan unit LEDs
This section describes the primary dc power supply and fan unit LEDs on the
DS4700 Express Storage Subsystem (models 70S, 70T, 72S, 72T).
DS4700 Express Storage Subsystem (models 70S, 70T, 72S, 72T).
ds470007
2
3
4
1
1
2
3
4
Figure 96. Power supply and fan unit LEDs
126
IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide