J2 PIN NAME
DEFAULT
DESCRIPTION
J2 PINS
RESERVED
OUT
Must be OUT
RS
DELAY MOTOR
START
OUT**
Must be OUT
DS
MOTOR START
ENABLE
IN*
Must be OUT if using the 1540B (ISA) Host Adapter
Must be IN if using the 1740A (EISA) Host Adapter
ME
WRITE
PROTECT
OUT
Must be OUT
WP
PARITY
OPTION
IN
Must be IN
PE
RESERVED
OUT
Must be OUT
SS
TERMINATOR
POWER
IN
Must be IN for power from drive
TP1
OUT
Must be IN for power to SCSI bus
TP2
OUT
Must be IN for power from SCSI bus
TP1 – TP2
*
When this jumper is OUT, the motor is started immediately after power is turned on. When this jumper is
IN, the motor is controlled by the START/STOP unit command. This jumper is IN for onboard SCSI
and 1740 SCSI controllers and OUT for the 1540 SCSI controller.
** This jumper is IN for 1540 SCSI host controller and OUT for onboard SCSI and the 1740 host controller.
J5 PINS
SETTING
0
Must be OUT
1
Must be OUT
2
Must be OUT
Note: J5 is not used. All jumpers should be removed.
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Devices