Hitachi AMS 2100 Getting Started Manual page 20

ENC Unit
Power Unit
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18
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Figure 1-13: Back Panel
Table 1-3: Modular 2U SAS Expansion Unit Back Panel
Alarm LED (red)
• ON = a failure occurred that makes the array unable to operate.
• Slow Blinking = a serious failure has occurred while power is on. Please
contact Hitachi Data Systems Technical Support. See the Getting help
section in the Preface of this manual.
Locate LED (orange) — lights when a modular 2U SAS expansion unit has
encountered a serious error. Please contact Hitachi Data Systems Technical
Support. See the Getting help section in the Preface of this manual.
• Blink one time fast = SRAM error.
• Blink two times fast = ENC hard error.
• Blink three times fast = microprogram error in flash memory.
Power LED (green)
• ON = normal operation; the section is fully operational.
• Slow Blink = firmware download is complete.
• Fast Blink= firmware is downloading (do not turn off the array).
IN from RKS/RKES/RKM/RKEM,RKH/RKHE/RKEH or RKAK/RKAKS/RKAKX
PATH IN LED (green) appears above this connector.
OUT to RKAK/RKAKX IN
PATH OUT LED (green) appears above this connector.
RDY LED (green)
• ON = DC output is normal.
AC IN (green)
• ON = expansion unit is receiving power.
ALM LED (red)
• ON = a failure occurred in the ENC unit, rendering it inoperable.
Power receptacle (J1)
Console
Hitachi AMS 2100/2300 Getting Started Guide
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Description
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ENC Unit
Power Unit
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