Technical data

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Chapter 3: Interface and Cabling Information
Standard SCSI Connector
A single, external 68-pin SCSI connector is provided on the BaseIO panel (see Figure 3-3).
This connector supports both Ultra SCSI and SCSI-2 devices. The connector sends
single-ended SCSI signals only.
Optional additional SCSI ports can be implemented using XIO option boards.
The hyphen preceding a signal name indicates that the signal is low. Note that 8-bit
devices that connect to the P cable leave the following signals open: -DB(8), -DB(9),
-DB(10), -DB(11), -DB(12), -DB(13), -DB(14), -DB(15), -DB(P1). All other signals are
connected as shown in Table 3-2.
Table 3-2 68-Pin Single-Ended, High-Density SCSI Pinouts
Signal Name Pin Number Pin Number Signal Name
Ground 1 35 -DB(12)
Ground 2 36 -DB(13)
Ground 3 37 -DB(14)
Ground 4 38 -DB(15)
Ground 5 39 -DB(P1)
Ground 6 40 -DB(0)
Ground 7 41 -DB(1)
Ground 8 42 -DB(2)
Ground 9 43 -DB(3)
Ground 10 44 -DB(4)
Ground 11 45 -DB(5)
Ground 12 46 -DB(6)
Ground 13 47 -DB(7)
Ground 14 48 -DB(P)
Ground 15 49 Ground