StorCase Technology S20A108 - Manual (Page 21)

StorCase Technology, Inc. S20A108 User's Guide - Rev. A02
14 Installation
Figure 10: Device Spin Down/Up Timer Switch
Adjusting the Spin Down/Up Timer
The timer for device spin down is controlled by a small selector, located in a cutout on the side
of the DE200 receiving frame as shown in Figure 10. When the key is turned to the OFF position,
and when the timer receives a NO SCSI Activity signal from the Isolator Board, it waits the
specified delay time before displaying a “u” on the front panel of the receiving frame. The
amount of time required for a disk drive to spin down is approximately 15 seconds or more.
This number can vary depending on the type of SCSI device and manufacturer (e.g. a Seagate
Barracuda may require 45 seconds). The factory configuration is set for 20 seconds. A
different delay time may be selected with the provided alignment tool. Refer to the SCSI device
manufacturer’s manual for more information on required device spin down time.
Front of
Receiving
Frame
0143
0 2
4
6
8
A
C
E
0 = 10 SECONDS 8 = 50 SECONDS
1 = 15 SECONDS 9 = 55 SECONDS
2 = 20 SECONDS A = 60 SECONDS
3 = 25 SECONDS B = 65 SECONDS
4 = 30 SECONDS C = 70 SECONDS
5 = 35 SECONDS D = 75 SECONDS
6 = 40 SECONDS E = 80 SECONDS
7 = 45 SECONDS F = 85 SECONDS
Spin Down/Up Time