Hitachi AMS 2000 Series Service Manual page 86

Table 1-35: Modular 2U SAS Expansion Tray ENC Status LEDs
LED


Power supply status LEDs
The modular 2U SAS expansion unit power supply has the following LEDs.
Figure 1-47: Modular 2U SAS Expansion Tray Power Supply Status LEDs
Table 1-36: Modular 2U SAS Expansion Tray Power Supply Status
LED



1–46
PATH 0 (IN) Side (green)
• ON = IN side of the modular 2U SAS expansion tray is linked up.
PATH 0 (OUT) Side (green)
• ON = OUT side of the modular 2U SAS expansion tray is linked up.
RDY LED (green)
• ON = normal operation.
AC IN LED (green)
• AC input to the modular 2U SAS expansion tray is operating normally.
ALM LED (red)
• ON = power supply has stopped or is in an abnormal state.
Introduction
Hitachi AMS 2000 Family Storage System Service Guide
Description


LEDs
Description
