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Chapter 4: Installing Optional Peripherals
Figure 4-13 68-Pin Differential SCSI Connector
The hyphen preceding a signal name indicates that the signal is low. Note
that 8-bit devices that connect to the P-cable leave these signals open:
-DB(12), -DB(13), -DB(14), -DB(15), -DB(P1), -DB(8), -DB(9), -DB(10), -DB(11),
+DB(12), +DB(13), +DB(14), +DB(15), +DB(P1), +DB(8), +DB(9), +DB(10),
+DB(11). All other signals are connected as shown in Table 4-3.
Table 4-3
68-Pin Differential, High-Density SCSI Pinouts
Signal Name Connector
Contact
Number Cable
Contact
Number Signal Name
+DB(12) 1 35 -DB(12)
+DB(13) 2 36 -DB(13)
+DB(14) 3 37 -DB(14)
+DB(15) 4 38 -DB(15)
+DB(P1) 5 39 -DB(P1)
Ground 6 40 Ground
+DB(0) 7 41 -DB(0)
+DB(1) 8 42 -DB(1)
+DB(2) 9 43 -DB(2)
1
34
35
68