Quantum 10K II Manual de usuario Pagina 41

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Installation
314 Quantum Atlas 10K II Ultra 160/m SCSI Hard Disk Drives
Table 3–4 Spin Up on Power On Options
Option
STAGGER_SPIN
(Pin 78)
DELAY_SPIN
(Pin 38)
Option 1 – Spin Up When
Power is
Applied
Open Open
Option 2 – Spin Up After
Delay
Ground Open
Option 3 – Spin Up on
START
Command
Open Ground
Reserved Ground Ground
3.4.2.4 Activity LED for SCA-2 Connector Versions
The drive provides the output BUSY_OUT signal to power a user-supplied activity
LED.
The output indicates the drive is performing a SCSI operation. To use this output,
connect a user-supplied LED cathode to the BUSY_OUT connection, pin 77 on the
SCA Connector (Figure 3-5). The LED anode must be attached to the proper +5
VDC supply through an appropriate current-limiting resistor.
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