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Pinouts

Differential High-Density SCSI Pinouts

Figure A-3 shows the 68-pin connector.

Figure A-3 68-Pin Connector

In Table A-8, the hyphen preceding a signal name indicates that the signal is active-low.

Eight-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 A-8.

24 Ground 49 REQ

25 Ground 50 I/O

Table A-8 Host System 68-Pin Single-Ended, High-Density SCSI Pinouts

Pin Number Signal Name Pin Number Signal Name

1 +DB(12) 35 -DB(12)

2 +DB(13) 36 -DB(13)

3 +DB(14) 37 -DB(14)

4 +DB(15) 38 -DB(15)

Table A-7 (continued) Fifty-Pin Single-Ended, High-Density SCSI Pinouts

Pin Number Signal Name Pin Number Signal Name

1 2 ... 102 103 104 105 106 107 108 109 110 111 112 113 114

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