APC 15000 RAID User Manual
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007-5510-002
5.3.2
Input/Output (I/O) Module
The drive enclosure storage subsystem includes an enclosure with rear facing bays which house two (2)
I/O modules (
I/O modules (
). Processors housed on the I/O modules provide enclosure management and
interface to devices on the Backplane, PCM, and Display Panel in order to monitor internal functions.
The plug-in I/O modules have been designed for integration into a drive enclosure storage subsystem,
providing external SAS cable interfacing with up to 60 SAS or SATA disk drives.
providing external SAS cable interfacing with up to 60 SAS or SATA disk drives.
Table 5–1
PCM LEDs
PCM LEDs
Normal Operation LEDs
Faults LEDs
Enclosure Audible Alarm
GREEN
AC Input
FAILURE
off
Off
GREEN
DC Output
FAILURE
off
Off
OFF
Fan Fault /
Power Supply
Fault
AMBER
Off
OFF
ID
BLUE
Off