15
97705183 A
User Manual
Appendix B

Function Connector Pin Description

(see appendix A for connector location)
SwitchPins Function Description
3 A1 - B1 SCSI ID 2 See Appendix C to set SCS I I D
2 A2 - B2 SCSI ID 1 See Appendix C to set SCS I I D
1 A3 - B3 SCSI ID 0 See Appendix C to set SCS I I D
A4 - B4 Disable SCSI When the pair of pins is open, the drive
Parity performs SCSI parity checking (default).
Shorting the pins with a jumper forces the
drive NOT to perform the SCSI parity checking.
A5 - B5 Disable Write When the pair of pins is open, the drive
Cache performs write back caching (default).
Shorting the pins with a jumper forces the
drive NOT to perform the write back caching.
A6 - B6 Disable Auto When the pair of pins is open, the drive
Spin-up performs an automatic spin-up upon media
loading (default). Shorting the pins with a jumper forces
the drive NOT to perform the automatic spin-up.
4 A7 - B7 Force Verify Shorting the pair of pins forces the drive to
for Write perform a Write and Verify operation
whenever the host issues a WRITE command
(default). Opening the pins by removing the
jumper will force the drive not to Verify after
Write (unless specified under software
A8 - B8 Disable Manual Shorting the pins disables the eject button
Eject operation. (Default Open).
5 A9 - B9 Enable Fast SCSI Shorting the pins enables Fast SCSI mode.
Default Closed
6 A10 - B10 Device Type When the pins are open the drive responds as
an Optical Memory Device (type 7) (Default).
Shorting the pins forces the drive to respond
as a Direct Access Device (type 0)
A11 - B11 Enable Shorting the pins invokes the internal SCSI
Termination active terminator. With the pins open
(default) Termination is disabled.
A12 - B12 Terminator These pins supply +5V DC through an isolation
Power diode for SCSI terminator power to the SCSI
bus TERMPWR line. Shorting the pins enables
SCSI TERMP WR signal (default). Leaving them
open disables.