Maxtor ATLAS 10K III Product Manual page 35

Maxtor Atlas 10K III drives have three Spin Up modes:
Spin up immediately when power is applied. Verify that no jumper is installed
across the Delay Spin pin pair of the J3 Option Header.
Spin up after a predetermined delay following power on: Install the jumper across
pin pair 21/22 (GND/Stagger Spin) on the J3 Option Header. Set the delay
parameters with the MODE SELECT command, Maxtor (Vendor) Special
Function Control Page (39h). The delay is equal to a user-specified
multiplier, multiplied by the numerical SCSI ID of the drive. This will give
a staggered spin-up in multiple-drive installations.
Spin up on START STOP UNIT command: Install the jumper across pin pair
11/12 (GND/Delay Spin) on the J3 Option Header. Remove any jumper
from pin pair 21/22 (GND/Stagger Spin) if a jumper is installed there, on the
Secondary Option connector.
Install a jumper across pin pair 13/14 (SE) on the J3 Option Header) to operate the
disk drive as a single-ended device. Remove the SE jumper for LVD operation and
monitoring of the DIFFSENS signal.
Busy and Fault status of the drive can be monitored remotely by connecting a
remote (external) Busy and/or remote Fault display LEDs to the appropriate pins
on the J3 Option Header or the J1 Option Connector.
On the J3 Option Header, connect the cathode side of the remote Busy LED to pin
18, Busy Out. Connect the anode side of the LED to pin 17, +5V.
On the J1 Option Connector, connect the cathode side of the remote Busy LED
to pin 8, Busy Out. Connect the anode side of the LED to pin 11, +5V.
On the J3 Option Header, connect the cathode side of the remote Fault LED to
pin 9, Fault LED. Connect the anode side of the LED to pin 17, +5V.
On the J1 Option Connector, connect the cathode side of the remote Fault LED
to pin 2, Fault LED. Connect the anode side of the LED to pin 11, +5V.
Wide Data Transfer (WDTR) negations can be limited to 8-bit transfers by
installing a jumper across pin pairs 23/24 (No Wide) of the J3 Option Header. This
can also be done by setting byte 5, bit 4 in the Maxtor (Vendor) Unique Mode Page
(39h) via the Mode Select command (15h).
Installation
Maxtor Atlas 10K III 3-9