Model: DPES-30540, 30810 and 31080

Jumper position and function are as shown below. Pin pitch is 2 mm.  The jumpers control SCSI Device ID, Auto Spin Up, Unit Attention, SCSI Terminator Connection, and Target Initiated Synchronous Negotiation.

Notes:

1. If JP4 is Off, the drive will spin up automatically after power on reset. If JP4 is On, the drive will not spin up unless the host system issues a start command to the drive with the start bit set to one.
2. If JP5 is On, Unit Attention after power on reset or SCSI bus reset is disabled.
3. If JP6 is On, the internal SCSI active terminator works.
4. If JP7 is On, Target Initiated Synchronous Negotiation is disabled, and then the Initiator is required to start a negotiation handshake if Synchronous SCSI transfers are desired.  On drives manufactured after 3/95, JP7 will be the LED drive lines.