64
Chapter 3: Replacing Pre-Installed Components
M1205 HDD Start-Mode & ID Selection Switch
SW1 & SW2 HDD Start-Mode Selection Switch
Case
SW1
(DLYD_START)
SW2
(RMT_START)
Motor Spin Func-
tion
1
OFF
OFF
Motor spins up at
D.C. power on.
2*
ON
OFF
Motor spins up at
D.C. power on after
a delay in seconds
12 times** the value
of the numeric
SEL_ID for the SCSI
device.
3
OFF
ON
Motor spins up only
when START UNIT
command is
received.
4
ON
ON
Reserved. SCSI
devices not imple-
menting this option
shall execute power
control according to
the rules of case 3.
Note:
*Case 2 is the default setting.
**This value may be reduced by SCSI device supplies to reflect the
wrost-case time duration of peak current drains at the 12 V.D.C or 5
V.D.C source or both during motor spin up. In no case should the
delay exceed 12 s.
Summary of Contents for Transport GT24 B2891
Page 1: ...Transport GT24 B2891 Service Engineer s Manual ...
Page 2: ......
Page 23: ...Chapter 1 Overview 15 1 5 6 Motherboard Block Diagram ...
Page 24: ...16 Chapter 1 Overview Memo ...
Page 44: ...36 Chapter 2 Setting Up Memo ...
Page 82: ...74 ...
