Expansion Unit - Hitachi AMS 2000 Series Service Manual

Expansion unit

Front panel status LEDs
The front panel of the expansion unit includes Power and Locate status LEDs
that show the status of the unit and identify the unit. The installation
location should provide an unobstructed view of these LEDs.
In addition, each drive slot on the expansion unit has alarm and Active LEDs
that show the status of the drive installed in the slot directly below the
status LEDS. As shown in
when the front bezel is removed. A close up photo of the drive status LEDs
is shown above.
There are no switches on an expansion unit. Power is turned on and off with
a control signal that is routed from the base unit via the ENC cables that are
connected to the ENC unit in the expansion unit.
Item
1
1–32
Figure 1-13 on page
Figure 1-28: Front View of an Expansion Unit
Table 1-19: Expansion Unit Front View
Description
Locate LED. Expansion unit
status LEDs on page 1-33
Orange
Introduction
Hitachi AMS 2000 Family Storage System Service Guide
1-15, these LEDs are visible
Item Description
Power LED
2
GREEN