This appendix describes the pinouts and the signal descriptions for the SCSI and the SCSI and SBus connectors.
Figure B-1 describes the pinouts for the SCSI connector.
Table B-1 lists the signal descriptions for the SCSI connector.
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Pin Description Pin Description ---------------------------------------------------------------------------------------------------------------------------------
1 Ground 26 sd0-
2 Ground 27 sd1-
3 Ground 28 sd2-
4 Ground 29 sd3-
5 Ground 30 sd4-
6 Ground 31 sd5-
7 Ground 32 sd6-
8 Ground 33 sd7-
9 Ground 34 sdp-
10 Ground 35 Ground
11 Ground 36 Ground
12 Ground 37 Ground
13 Ground 38 TermPwr
14 Ground 39 Ground
15 Ground 40 Ground
16 Ground 41 atn-
17 Ground 42 Ground
18 Ground 43 bsy-
19 Ground 44 ack-
20 Ground 45 rst-
21 Ground 46 msg-
22 Ground 47 sel-
23 Ground 48 cd-
24 Ground 49 req-
25 Ground 50 io-
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Figure B-2 describes the pinouts for the SBus connector.
Table B-2 lists the signal descriptions for the SBus connector.
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Pin Description Pin Description Pin Description Pin Description -----------------------------------------------------------------
1 Ground 25 sb_d(31) 49 sb_clk 73 sb_d(30)
2 sb_br* 26 sb_siz(0) 50 sb_bg* 74 sb_siz(1)
3 sb_sel* 27 sb_siz(2) 51 sb_as* 75 sb_rd
4 sb_irq1* 28 sb_irq7* 52 Ground 76 Ground
5 sb_d(0) 29 sb_pa(0) 53 sb_d(1) 77 sb_pa(1)
6 sb_d(2) 30 sb_pa(2) 54 sb_d(3) 78 sb_pa(3)
7 sb_d(4) 31 sb_pa(4) 55 sb_d(5) 79 sb_pa(5)
8 sb_irq2* 32 sb_merr* 56 +5VDC 80 +5VDC
9 sb_d(6) 33 sb_pa(6) 57 sb_d(7) 81 sb_pa(7)
10 sb_d(8) 34 sb_pa(8) 58 sb_d(9) 82 sb_pa(9)
11 sb_d(10) 35 sb_pa(10) 59 sb_d(11) 83 sb_pa(11)
12 sb_irq3* 36 sb_err* 60 Ground 84 Ground
13 sb_d(12) 37 sb_pa(12) 61 sb_d(13) 85 sb_pa(13)
14 sb_d(14) 38 sb_pa(14) 62 sb_d(15) 86 sb_pa(15)
15 sb_d(16) 39 sb_pa(16) 63 sb_d(17) 87 sb_pa(17)
16 sb_irq4* 40 sb_ack8* 64 +5VDC 88 +5VDC
17 sb_d(19) 41 sb_pa(18) 65 sb_d(18) 89 sb_pa(19)
18 sb_d(21) 42 sb_pa(20) 66 sb_d(20) 90 sb_pa(21)
19 sb_d(23) 43 sb_pa(22) 67 sb_d(22) 91 sb_pa(23)
20 sb_irq5* 44 sb_ack32* 68 Ground 92 Ground
21 sb_d(25) 45 sb_pa(24) 69 sb_d(24) 93 sb_pa(25)
22 sb_d(27) 46 sb_pa(26) 70 sb_d(26) 94 sb_pa(27)
23 sb_d(29) 47 Ext 71 sb_d(28) 95 sb_reset*
24 sb_irq6* 48 -12VCD 72 +5VDC 96 +12VDC
(unused)
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