StorCase Technology S20A108 - Manual (Page 11)

4 Introduction
StorCase Technology, Inc. S20A108 User's Guide - Rev. A02
Figure 3: Receiving Frame Front Panel
Receiving Frame Front Panel
• Key Lock/Drive Power Switch- This key switch assures proper seating of the
drive carrier within the receiving frame, turns power to the drive carrier on and off,
and prevents unauthorized removal or installation of the carrier. For the computer
to access data on the disk drive, the key must be turned counterclockwise to the
locked position.
The key may also be permanently attached to the locking mechanism as shown in
Appendix C.
• Unit ID Number Indicator- (Figure 4) This LED displays the physical address of
the DE200 drive carrier when the carrier is Installed and Locked in the receiving
frame or Removed from the receiving frame. If the drive carrier is Installed but Not
Locked, a "u" will be displayed to indicate an unlocked condition. The unit ID number
is selected by means of the unit ID select switch inside the receiving frame using
a special alignment tool supplied with the DE200.
• Activity Indicator- A small dot next to the Unit ID Number which illuminates to indicate
that the host computer is accessing the data on the DE200 carrier. This dot will flash
during communication with the host computer.
• Device Spin Down/Up Timer Switch- This switch controls the length of time that
the activity indicator flashes during device spin down/up, providing a visual
indication of drive activity. Refer to Figure 10 for timer settings.
Receiving Frame
Front
Key Lock/Drive
Power Switch
2.
Unit ID Number
Indicator
Activity Indicator
0231A
Device Spin
Down/Up
Timer Switch
Carrier Guide
High Insertion
Count Mating
Connector
All Steel
Receiving
Frame