Spin Up On Power On Options - Maxtor ATLAS 10K III Product Manual

Configure the desired spin up option (Table 3-3) by setting the state of the
DELAY_SPIN (Pin 38) and STAGGER_SPIN (Pin 78) inputs on the 80-pin SCA-
2 connector (Figure 3-5). The states of these signals are set by using either hard-
wired connections at the backplane or backplane logic.
O p t i o n
– Spin Up When Power is Applied
1 R V K Q P 
– Spin Up After Delay
1 R V K Q P 
– Spin Up on START Command
1 R V K Q P 
Reserved
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.

Spin Up on Power On Options

S T A G G E R _ S P I N ( P i n 7 8 )
Open
Ground
Open
Ground
Installation
D E L A Y _ S P I N ( P i n 3 8 )
Open
Open
Ground
Ground
Maxtor Atlas 10K III 3-13