Quantum

Jumper Settings fo the DLT4000


The DLT 4000 has three configurable options that may require modification based on user requirements. These options are:

  • SCSI ID (Default setting = ID 5)
  • Parity checking (Default = parity checking enabled)
  • TERMPWR (Termination power, default = enabled)

The following provides information on how to change these settings, refer to the drive diagrams provided to insure proper orientation.

To Set SCSI ID

Bare, Rack Mountable Drive

To change SCSI ID orient yourself to the drive as seen in figure 1-1 (drive front to your right). The SCSI ID block has 10 pins arranged in two rows of 5, top row is odd numbered and the bottom row is even. Set the ID values according to chart 1-1 by placing a jumper across the appropriate set of pins. Please note that for this block setting to register with the drive a jumper must be in place across pins 9-10.

Tabletop Drive

Use the thumb wheel switch found at the back of the drive and set the number to the ID required.

To Set Parity

Bare, Rack Mountable Drive

By default, the drive comes with parity checking enabled. In order to disable parity checking, place a jumper across pins 7-8 of the SCSI ID block (refer to figure 1-1). To enable parity remove the jumper, if present, from pins 7-8 of the SCSI ID block.

Tabletop Drive

Parity checking can only be disabled by an authorized service provider.

To Set TERMPWR

Bare, Rack Mountable Drive

To change TERMPWR orient yourself to the drive as seen in figure 1-2 (drive front to your left). Please note that it is recommended that this jumper remain in place as all devices can provide TERMPWR. If required, to disable TERMPWR remove the jumper across pins 3-4. To enable TERMPWR place a jumper across pins 3-4.

Tabletop Drive

TERMPWR cannot be disabled except by an authorized service provider.